Agilent490微型气相色谱解决方案
气相色谱仪常见故障与解决方法及操作规程
气相色谱仪常见故障与解决方法及操作规程气相色谱仪在火灾调查、石油、化工、生物化学、医药卫生、食品工业、环保等方面应用很广。
它除用于定量和定性分析外,还能测定样品在固定相上的调配系数、活度系数、分子量和瑞盛比表面积等物理化学常数。
一种对混合气体中各构成分进行分析检测的仪器。
来看看气相色谱仪的常见故障有哪些,解决方法又有哪些。
一、进样后不杰出谱峰的故障气相色谱仪在进样后检测信号没有变化,仪不出峰,输出仍为直线。
碰到这种情况时,应按从样品进样针、进样口到检测器的次序逐一检查。
1、首先检查注射器是否堵塞,假如没有问题,2、再检查进样口和检测器的石墨垫圈是否紧固、不漏气,3、然后检查色谱柱是否有断裂漏气情况,4、zui后察看检测器出口是否畅通。
5、检测器出口的畅通是很紧要的,有人在工作中会碰到这样的问题:前一天仪器工作还一切正常,第二天开机后却无响应峰信号。
检查进样口、注射器、垫圈和色谱柱都正常,可就是不出峰,无意中发觉进样口柱头压达不到设定值,总是偏高,这时才怀疑是ECD 检验器出口不畅通。
由于 E C D的排放物有确定的放射性,所以 E C D出口是引到室外的。
当时是秋冬之交,雨水进入到E CD排出口之后冻住了,因此造成仪器E CD的出口堵塞,柱头压居高不下,气体在气路中无法流动,也就无法载样品到检测器,所以不出峰。
二、基线问题气相色谱基线波动、飘移都是基线问题,基线问题可使测量误差增大,有时甚至会导致仪器无法正常使用。
1、碰到基线问题时应先检查仪器条件是否有更改,近期是否新换气瓶及设备配件。
2、假如有更换或条件有更改,则要先检查基线问题是不是由这些更改造成的,一般来说,这种变化往往是产生基线问题的原因。
有些人在工作中就碰到过这种情形:新载气纯度不够,换过载气之后,基线渐渐上升(由于载气净化管的原因,基线不是立刻变化的)。
第二天开机之后,基线特别高,并伴有基线猛烈抖动,全部峰都湮没在噪音中,无法检测。
Agilent 490-GC Micro-GC Solution 数据手册
Key BenefitsThe Speed You Need. Precise gas analysis in seconds rather than minutes brings improved product quality and more exact product valuation to industries such as oil and gas exploration, refi ning, natural gas production and distribution, fuel cell development, and specialty gas production.Full Flexibility. The 490-GC Micro-GC is a rugged, compact analyzer for gas quality analysis in thelaboratory, on-line and at-line. With advanced micro-machining and computing technologies, the 490-GC offers between one and four analytical GC channels. Each channel is a separate GC with pneumatics, injector, column, and detector. User exchangeable GC channels or modules provide quick and easy reconfi guration for any application.Increase Monitoring Frequency. Micro-electronic gascontrol with time-programmable backfl ush lets you inject samples while eliminating components that could foul the column and reduce lifetime. Extremely fast analysis for continuous process monitoring and control using the 490-GC ensures faster and better decisions that can lead to higher quality end-products.Easy Start-Up. On arrival, the 490-GC provides the results and ruggedness you demand in the laboratory and in the fi eld for the analysis of gaseous and vapor streams. Start-up is easy, quick and seamless with electronic data sheets (EDS), which store operational history and the last used method for each GC channel. The 490-GC can be controlled from virtually anywhere in the world through a PC and the internet, using industry standard protocols such as TCP/IP.When the composition of gas mixtures is critical, Varian’s 490-GC Micro-GC delivers the information you need, time after time. Our 5th generation micro-gas chromatograph generates more data in less time for faster and better business decisions.Specifi cationsConfi gurationOne to four analytical GC channelsControl• Independent control of each analytical channel• Injector, column, and detector settings• Pneumatics, including time-based column pressure programmingInjector• Micro-machined injector with no moving parts• Injection volume 1 μL to 10 μL, software selectable • Optional heated injector, up to 110 °C, including heated sample transfer line• Optionalbackfl ush capabilityColumn OvenTemperature range, up to 180 °C, isothermalDetector• Micro-machined Thermal Conductivity Detector (TCD)• Dual-channel (sample and reference fl ow)• Internal volume 200 nL per channel• Filaments,4Detection Limits, TCD• WCOT (wall coated open tubular) columns, 1 ppm • Micro-packed/PLOT columns, 10 ppmOperating Range, TCD• Concentration, 1 ppm to 100% level• Linear dynamic range, 106Repeatability< 0.5% RSD for propane at 1 mol % level for WCOT columns at constant temperature and pressure Optional DMD (Differential Mobility Detector) occupies one channel position• Detection limit, 100 ppb for MES• Dynamic range, 103• RSD < 2% at 10 times the LDL• Gas requirements, 400 mL/min ‘Zero’ Air or N2• Source, 63Ni, 5 mCi (185 MBq)Carrier Gas• He,H2, N2, or Ar, 550 ± 10 kPa (80 ± 1.5 psi) input • Up to two different types of carrier gases can be used in one instrument• Inlet connection, 3.2 mm (1/8 in.) stainless steel compression fi tting (Swagelok®)Sampling• Sample inlet, 1.6 mm (1/16 in.) stainless steel Valco® fi tting with replaceable 5 μm stainless steel fi lter • Sample conditions, non-condensing gas of 0 °C to 110 °C• Maximum sample inlet pressure, 100 kPa (14.5 psi)• Software selectable sample pump or continuous fl ow • Optional separate sample inlet can be installed in front or backCommunication• Analog input, 6 signals (0-10 V)• LA N(TCP/IP)• Serial (RS232) for control of a stream selection valve • Webserver, display instrument status on standard Internet browserControl/Data Handling Software• Standard package, Galaxie™ Chromatography Software from Varian• Additional calculation and reporting packages- Natural gas calculations, such as calorifi c valueand relative density, meet ISO 6976, GPA 2171,and ASTM D 3588 standards- Custom calculations and reporting- I/O control, for control of analog output signals(4-20mA) and relays- PCI1000Com, for transferring results fromGalaxie Chromatography Software from Varian,over Modbus TCP/IP to a DCS19 in. housing for a dual channel Micro-GCconfi gurable with a wide range of accessories• Stream selection valves• Micro-Gasifi er• Genie® Membrane Filters• Sample pressure sensorsOptions• Micro-Gasifi er, heated pressure-reducing- Controlled evaporation of LPG or LNG samples- Controlled reduction of high pressure gas samples- Operating temperature 100-150 °C, default set at 100 °C- Sample inlet pressure, 1000 psi/7000 kPa maximum - Sample carry-over, <1% RSD, as measured forhexane- Sample outlet pressure 7.5 psi +/- 2.5 psi• Genie Membrane Filter- Fully inert membrane technology- Compliant for BTU calorifi c value applications- Removes particles from gas samples- Removes liquids from gas samples• Stream Selection Valve, up to 16 sample streams for multi-stream analysis. Two main valve types are used with the 490-GC- SD (dead-ended) valves select one of 4 to 16 dead- ended streams- SF (fl ow-through) valves select a stream andsend it to the outlet• On-board universal accessory bracket (occupies one channel position in the Micro-GC)- Stream selection valves - Micro-Gasifi er- Genie Membrane Filters- Pressure regulator- Sample pressure sensors- Sample relief valves• Gas injection by syringe- Front sample inlet- Septum cap or Luer-lock connection- Selection valve for syringe or standard pumpinjection• Optional Field/Portable Case- Refi llable gas containers, one or two 300 mL gascontainers with maximum pressure of 12,000 kPa(1740 psi). Easy re-fi ll with certifi ed adapter, safetyrelief valve to avoid over-pressurization, andpressure read-out per gas container- Up to two different type of carrier gases can beused. Choice of carrier gases:-Helium-Argon-N itrogen- Rechargeable battery packs, with an optional second battery pack for up to 8 hours continuous operation- Two-channel system, 37 cm (h) x 29 cm (w) x 41 cm (d) - Four-channel system, 37 cm (h) x 29 cm (w) x 72 cm (d) - Weight with 490-GC, minimum of 10 kg(confi guration dependent)Chromatography • Spectroscopy • Mass Spectrometry • Magnetic Resonance Spectroscopy and Imaging • X-Ray Crystallography • Dissolution • Consumables • Data Systems • VacuumVarian, Inc.North America: 800.926.3000, 925.939.2400Europe The Netherlands: 31.118.67.1000Asia Pacifi c Australia: 613.9560.7133Latin America Brazil: 55.11.3238.0400Other sales offi ces and dealers throughout the world _ check our Web site.Environmental Requirements• Humidity (relative), 0% to 95% non-condensing • Temperature, 0 °C to 50 °C • Certifi ed up to 2000 m altitude Dimensions and Weight• Two-channel system, 28 cm (h) x 15 cm (w) x 30 cm (d)• Four-channel system, 28 cm (h) x 15 cm (w) x 55 cm (d)• Weight, minimum of 5.2 kg (confi guration dependent)Power Requirements• Main power, 90-130 Vac or 180-260 Vac, 50-60 HzOutput, 12 VDC, maximum 130 W。
热电气相色谱仪
热电气相色谱仪配置说明资料来源:南京途威仪器设备有限公司免费热线:系列气相色谱赛默飞世尔科技隆重推出新的系列气相色谱,首创业内唯一能实现用户可直接更换的即时联接的模块化进样口和检测器的气相色谱仪。
重新定义了气相色谱在常规分析及高通量实验室中的适用性。
模块化的设计实现了进样口和检测器的即时联接,减少仪器的维护时间,让用户可以根据具体的应用及日常分析工作快速提高仪器性能。
系列气相色谱将给您带来突破性的仪器性能提高和分析效率的极大改善。
满足你需要的完整解决方案系列设计有两种不同型号,应对纷繁复杂的实验室需求。
针对常规实验室设计,对于普通用户实现简易操作。
简化的用户界面不但能够实现开机,而且对于通过网络控制的远程用户,如石化等也能实现很好的程序控制。
在较大的常规实验室,是更好的选择。
它拥有完全触屏和人性化界面,便于直接在主机上控制仪器,并且能够直接保存开发方法。
在保留所有性能优点的同时,还包括本地化柱箱、进样口、检测器升级,维护指南,运行日志,多语种选择以及视频指导等多项辅助功能。
插拔式进样口及检测器在系列上,改变硬件配置仅需松动几个螺丝再把进样口或者检测器插入指定位置即可,方便快捷。
通过专利“即时联接”技术,即便没有专业培训、专用工具或在线客服工程师,也能够完成对的硬件配置,这种独具匠心的模块化设计对操作者而言有以下优点:•优越的升级方式——可方便地从单通道升级到多通道•方便地仪器维护——更换损坏进样口、检测器仅需几分钟“即时联接”——模块化进样口的强大优势“即时联接”进样口模块实现多功能性系列拥有一系列液体进样器模块以满足日常大部分样品分析。
从常规分流不分流进样口可快速升级为针对宽沸点范围的进样口,甚至还可根据特殊用途升级为进样口。
多功能性还体现在增加反吹和大体积进样上,这些功能可以提高系统灵敏度。
所有这些进样口技术都能在插拔式、便携、无管线的模块上完美实现,同时保证完全电子流量控制。
插拔式模块设计,最大程度保证了进样口的多样性和灵活性。
安捷伦气相色谱介绍及常见问题
Agilent气相色谱柱介绍
Agilent气相色谱柱选择及应用 Agilent常用耗材维护 常见故障排查
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主要内容
• • • • • Agilent气相历史介绍 Agilent气相色谱柱介绍
Agilent气相色谱柱选择及应用
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主要内容
• • • • • Agilent气相历史介绍 Agilent气相柱介绍及选择 Agilent气相柱在行业中的应用 Agilent常用耗材维护
常见故障排查
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色谱柱老化
¾ 老化步骤 1、接好色谱柱,确保系统无漏气。 2、对于高灵敏度检测器(如MSD和ECD等),最好不将色谱柱连接检测器 3、老化时将炉温逐渐升至将要进行分析方法的最高温度上加20度(但不得 超过色谱柱的恒温温度上限),如果尚无分析方法,可在色谱柱的恒温温度 上限减20度进行老化。 4、升温速率没有具体限制,可以参考将进行的分析条件,建议使用比具体 实验条件更快的升温速率 ¾ 老化时间 对于WCOT色谱柱,通常推荐的老化时间为2~3个小时。当方法对灵敏度的 要求较高、固定相的极性较强或膜厚较厚时,老化时间需要适当延长。
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可以首先进溶剂空白和运行空针来判断问题是否来自于样品、或是样 品溶剂不纯、还是系统污染了 如峰形不好、固定相过度流失、基线输出过高;这种情况下很可能是 漏气了;这时需排查进样口隔垫、O形圈、密封垫
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检测器检查
进样口检查
排除法——色谱柱检查
结果
柱效下降问题
色谱柱能进水吗
• 需要确认: 1. 色谱柱类型 2. 检测器类型 • 1. 2. 3.
• 其他可能导致峰拖尾的原因: • 不分流模式下,延迟时间过长(通常应在0.5~1.0分钟之间 ) • 进样时注射器中有样品残留 • 检测器尾吹气流量不足 • PLOT色谱柱过载 • 组分共流出 • 进样技术不佳 • 某些含磷化合物在NPD白色铷珠上会显示拖尾峰,建议更 换为黑色铷珠.
化验室Agilent4890气相色谱日常使用探究
化验室Agilent4890气相色谱日常使用探究摘要:气相色谱具有高灵敏度,高选择性,高效能,分析速度快,应用范围广,所需试样少,设备和操作比较简单等特点。
它是目前使用最广泛和分离最有效的一种分析方法,已广泛运用在各质检及科研领域中。
主题词:气源净化、密封垫、色谱柱、检测器、维护与保养一、概述天然气净化厂化验室Agilent4890气相色谱仪主要是进行甲醇组分含量的分析。
该仪器使用的检测器是氢火焰离子检测器(FID),使用的色谱柱是毛细管柱,2001年投入使用,由于使用时间长经常出现一些故障。
本文主要叙述了Agilent4890气相色谱仪原理及应用,浅谈气相色谱仪使用过程中存在的问题及维护、保养方法。
二、气相色谱仪的原理气相色谱仪根据试样中各组分在色谱柱中的气相和固定相间的分配系数的不同而工作的,当汽化后的试样被载气带入色谱柱中运行时,组分就在其中的两相间进行反复多次(103—106)的分配(吸附一脱附一放出)由于固定相对各种组分的吸附能力有所不同(即保存作用不同),因此各组分在色谱柱中的运行速度就不同,经过一定的柱长后,便彼此分离;分离后的组分按保留时间的先后顺序进入检测器,检测器根据组分的物理化学性质,将组分按顺序检测出来并自动记录检测信号,产生的信号经放大后,在记录器上描绘出各组分的色谱峰;最终依据试样中各组分保留时间(出峰位置)进行定性分析或依据响应值(峰高或峰面积)对试样中各组分进行定量分析。
三、气相色谱仪的维护与保养气相色谱仪分析装置流程由4个基本部分组成:(1)气源部分;(2)进样装置;(3)色谱柱;(4)检测器和记录仪。
下面就本人在工作中,结合Agilent4890色谱仪的使用心得,分别谈谈对这四部分的维护与保养的认识。
(一)气源部分气源部分主要由载气,燃气及助燃气这三部分组成。
载气流速要求平稳,常用流速范围在10~100mL/min。
我厂采用氢气作为Agilent4890色谱仪的载气。
气相色谱操作规程及日常维护方案
气相色谱操作规程及日常维护方案一、气相色谱操作规程1.1准备工作我们要确保气相色谱仪器的完整性,检查各部件是否齐全,包括气源、色谱柱、检测器、进样系统等。
然后,打开气相色谱仪器的电源,预热仪器至稳定状态。
我们需要准备样品,确保样品的纯净度和浓度符合测试要求。
1.2进样操作在进样前,要先将进样针插入样品瓶中,轻轻抽取适量样品,注意不要抽入气泡。
将进样针插入进样口,迅速推出样品,然后立即拔出进样针,避免样品残留在进样针中。
进样过程中,要确保色谱仪器的运行状态正常,观察样品在色谱柱上的分离效果。
1.3数据采集与处理在色谱仪器的电脑上,打开数据处理软件,设置好检测器类型、检测波长等参数。
当样品进入色谱柱后,软件会自动记录色谱图。
待样品完全分离后,我们可以对色谱图进行积分,计算各个组分的含量。
1.4关闭仪器实验结束后,关闭气相色谱仪器的电源,将色谱柱、进样系统等部件清洗干净,防止残留样品对下次实验产生影响。
同时,关闭气源,确保实验室安全。
二、气相色谱日常维护2.1气源维护气源是气相色谱仪器的动力源泉,要定期检查气源的压力和纯度。
如果发现气源压力不稳定或纯度降低,要及时更换气源。
要定期清洗气源过滤器,防止杂质进入仪器。
2.2色谱柱维护色谱柱是气相色谱仪器的核心部件,其性能直接影响实验结果。
要定期检查色谱柱的完整性,避免断裂、污染等现象。
使用完毕后,要用适当的溶剂清洗色谱柱,去除残留样品。
长时间不使用时,要将色谱柱从仪器中取出,妥善保存。
2.3检测器维护检测器是气相色谱仪器的关键部件,要定期检查检测器的灵敏度、线性范围等参数。
使用过程中,要注意检测器的工作温度,避免过热或过冷。
要定期清洗检测器,防止样品残留或污染。
2.4进样系统维护进样系统是气相色谱仪器的入口,要定期检查进样针、进样口等部件的完好性。
使用过程中,要确保进样针干净,避免样品污染。
同时,要定期清洗进样口,防止样品残留。
2.5软件维护气相色谱仪器的软件是数据采集与处理的重要工具,要定期更新软件版本,确保其正常运行。
490-PRO微型气相色谱仪和微型气相色谱仪价格
联系我们请登录: 南北仪器 查询优惠价格及更多产品请百度查询490-PRO 微型气相色谱仪和微型气相色谱仪价格490-PRO 微型气相色谱仪 标题:490-PRO 微型气相色谱仪流程监控与控制功能可实现快速、可靠、无人值守的操作 Agilent 490-PRO 微型气相色谱仪使您可以更快地对流程进行重现性更高的监控。
490-PRO 微型气相色谱仪专为流程控制应用设计,是一款可以无人值守的 “系统组件”。
490-PRO 微型气相色谱仪适用于需要在无人值守的情况下进行全天测量的工业应用,包括天然气分析/热值测定、沼气分析、炼厂气和烟道气的整体分析和痕量分析、硫化物、氧化物和卤化物的痕量分析、以及 HCN 的痕量分析。
490-PRO 微型气相色谱仪具有多达 4 个独立通道,在交付前针对您的分析进行了预配置和工厂测试,随时可以投入使用。
您可以使用即插即用式气相色谱通道,在现场针对新应用进行重新配置,整个过程仅需几分钟。
...厂家:上海政泓 市场价格: 优惠价格:百度搜索联系Agilent 6850系列气相色谱仪 标题:Agilent 6850系列气相色谱仪Agilent 6850 Series II 对于任何注重工作台空间、易用性和独立通道灵活性的实验室而言,这个小型的气相色谱仪都是一个极好的选择。
这种单通道仪器的占用面积仅有标准双通道气相色谱仪的一半,它允许两台气相色谱仪占用一台色谱仪的空间,因而能使样品通量加倍。
具有与安捷伦公司的旗舰产品 6890N 气相色谱仪、6890N 进样口和检测器相同的性能可靠的仪器,您会获得常规气相色谱分析所需要的所有功能和可靠性。
通用的自动进样器,可容纳 27 个 2-mL 样品瓶或 22 个 4-mL 样品瓶(使用可选的转盘附件) 内置 8 个样品转盘的 7683A 或 7683B 自动进样器的控制 最佳保留时间和定量重复性 电子气路控制,允许将所有压力和流量编程到方法中 可选择分流/不分流进样口、填充进样口、冷柱头进样口或...厂家:上海政泓 市场价格: 优惠价格:百度搜索联系。
Agilent气相色谱仪操作规程(1)
Agilent 气相色谱仪操作规程 (1)Agilent 6890气相色谱仪操作规程 (11)Agilent6890N型气相色谱仪操作规程 (13)Agilent 7890A 气相色谱议操作规程 (13)Agilent 6820 气相色谱仪标准操作规程。
(16)安捷伦6890N气相色谱仪操作规程 (19)安捷伦7820A气相色谱仪操作规程 (24)安捷伦7890型气相色谱仪操作规程 (37)Agilent 气相色谱仪操作规程 (38)气相色谱仪操作规程 (45)岛津GC-14C型气相色谱仪标准操作规程 (53)Agilent 气相色谱仪操作规程目的指导并规范Agilent 7890A气相色谱仪操作,提高操作者的实验技能。
范围与职责对Agilent 7890A的方法运行、谱图处理、日常维护进行描述。
技术部实验分析人员的气相操作进行规范。
本规程仅适用于Agilent 7890A, 7683B自动进样器,FID检测器及Chemstation软件的气相色谱仪。
安全注意事项操作仪器和处理样品时需穿实验服、佩戴护目眼镜、手套和口罩,样品处理需在通风橱内操作。
仪器的运行要用到高纯氮气,高纯氢气以及干燥空气。
气瓶的安放需符合公司相关规定,并注明标识。
设备氮气瓶(氮气,纯度≥99.995%)空气发生器(干燥空气)氢气发生器(氢气,纯度≥99.95%)程序一开机1 打开氮气瓶总开关,调节输出气压为0.4~0.6M Pa;打开空气发生器,氢气发生器。
2 打开7890A色谱仪开关,待GC进入自检,自检完成后会提示“Power on Successful”。
3 开启计算机,进入Windows系统后,双击电脑桌面的(Instrument Online)图标,进入GC化学工作站。
二采集数据方法编辑1 编辑新方法1.1 从“Method”菜单中选择“Edit Entire Method”,根据需要钩选项目,“Method Information”(方法信息),(仪器参数/数据采集条件),“Data “Instrument/Acquisition”Analysis(运行时间顺序表),(数据分析条件),“Run Time Checklist””确定后单击“OK”。
Agilent6890N气相色谱故障解决方法_图文(精)
Agilent6890N气相色谱故障解决方法_图文(精)Agilent 6890 气相色谱仪故障排除Agilent Technologies声明Agilent Technologies, Inc. 2007按照美国和国际版权法的规定,未经Agilent Technologies, Inc. 事先同意和书面许可,不得以任何形式或采取任何手段(包括电子存储和检索或翻译成其他语言)复制本手册中的任何内容。
担保本文档中包含的材料按“原样”提供,若在后续版本中有任何更改,恕不另行通知。
而且,在适用法律允许的最大范围内,Agilent 不对本手册及其所包含的信息做出任何明示或暗示的担保,其中包括但不限于对适销性和对具体用途适用性的暗示安全声明小心小心事项表示存在危险。
它表示在执行某个操作步骤或操作方法时必须加以注意;如果操作不当或没有遵守相应的规程,则可能会导手册部件号G1530-97011版本2007 年 3 月美国印刷Agilent Technologies, Inc. 2850 Centerville RoadWilmington, DE 19808-1610 USAAgilent 不对因提供、使用或执 Agilent 与用户致产品损坏或重要数据丢失。
只有完全理解并符合指定的条件时,才可以忽略行操作。
小心事项的要求继续进警告示在执行某个操作步骤或操作方法时必须加以注意;如果操作不当或没有遵守相应的规程,则可能会导致人身伤亡。
只有完全理解并符合指定的条件时,才可以忽略警告事项的要求继续进行操作。
担保。
行本文档或其中所包含的信息而造成的任何错误或任何意外或附带的损失承担责任。
如果签有单独的书面协议,且协议中涉及本文档所含材料的担保条款与上述条款发生冲突,则该书面协议中的担保条款具有优先法律效力。
“警告”事项表示存在危险。
它表1概念和常规任务概念 10如何使用本手册排除故障 10[Status](状态)键 10需始终保持最新的可配置项目 11色谱柱配置 11自动液体进样器配置 11气体配置 11确定仪器详细信息 12GC 电源配置 12查看运行日志、维护日志和事件日志电话联系Agilent 寻求服务之前要获得的信息 2硬件症状推杆错误 16ALS 错误处理的样品瓶 17注射器针头在向进样口中注射的过程中发生弯曲 FID 不点火 19 FID 点火器在点火序列过程中不发光 FPD 不点火 21NPD 调整补偿值过程失败 223色谱图症状保留时间无法重复 24峰面积无法重复 25污染或残留 26隔离来源 26检查可能原因—所有进样口和检测器组合泄漏超出预期 28不显示峰/无峰 29 13121820263目录故障排除表 1. 检测器故障排除 29柱箱温度程序运行过程中基线上升30峰分辨率很差31峰有拖尾32NPD 32 峰沸点或分子量判别困难 33对于任何以分流模式与任何检测器一起运行的进样口 33对于任何以非分流模式与任何检测器一起运行的进样口334进样口中样品分解/缺少峰前拖峰噪音检测器,包括漂移和基线尖峰噪音基线基线漂移基线尖峰图 1. 图 2. 峰面积或高度太低 FID 火焰在运行过程中熄灭并尝试重新点燃 FID 基线输出大于FPD 火焰在运行过程中熄灭并尝试重新点燃 FPD 输出过高或过低 FPD 峰面积太低 FPD 在半高处的峰宽度太大 FPD 基线输出太高,大于NPD 溶剂硬化 NPD 响应低 NPD 基线输出大于NPD 调整补偿值过程运行不正常 NPD 选择性低对 TCD 发现负峰 TCD 基线已经抑制了正弦曲线噪音拖尾峰TCD 峰在尾部有负向斜行线 343536373738383920 pA 42444546 20 pA 4748498 百万 5052535536414351(循环基线)54循环尖峰随机尖峰故障排除4GC 未就绪症状GC 从未变成就绪状态 58流量从未变成就绪状态 59柱箱温度从未冷却/冷却得非常缓慢 60柱箱从未加热 61温度从未变成就绪状态 62无法设定流量或压力 63气体没有达到设定的压力或流量值气体超出了压力或流量设定值进样口压力或流量存在波动无法将压力维持在与分流进样口上的设定值同样低的测量出的色谱柱流量不FID 没有点燃在进样序列中NPD 调整补偿值过程失败FPD 没有点燃 5关闭症状色谱柱关闭氢气关闭加热区关闭6不工作的 GC 症状GC 无法GC 打开PC 无法与7检查是否漏气漏气检查检查外部检查 GC 毛细管流量8故障排除任务测量色谱柱流量等于显示的流量 69FID 点火器没有变得727475 7678在启动过程中停止通讯 80示 82漏气 83漏气 85(微流体)接头中的漏气检查 8864656668红热 7071(在自检期间) 86上 67795水平打开,然后 GC 提是否是否故障排除测量 FID、TCD 、uECD 和 FPD 色谱柱流量 88测量 NPD 色谱柱流量 89测量分流口或隔垫吹扫流量 91测量检测器流量 93测量 FID、TCD 、uECD 和 FPD 流量 93测量 NPD 流量 94执行 GC 自检 96调整 FID 点火补偿值 976验证 FID 火焰已点燃在点火序列中验证 FID 测量 FID 泄漏电流测量 FID 基线输出测量 NPD 泄漏电流验证 NPD 铷珠已发热验证 FPD 火焰已点燃调整FPD 点火补偿值98功能99100101102103104105点火器故障排除故障排除78故障排除Agilent 6890 气相色谱仪故障排除1概念和常规任务概念 10需始终保持最新的可配置项目 11电话联系 Agilent 寻求服务之前要获得的信息电话联系 Agilent 寻求服务之前要获得的信息Agilent Technologies1212 91概念和常规任务概念对于您遇到的与 GC 硬件或色谱仪输出相关的错误、“GC 未准备好”消息和其他常见问题,本手册提供了相关症状和需执行的相应任务的列表。
AgilentEB频谱解析总结计划仪使用说明
Agilent E4402BESA-E Series Spectrum Analyzer使用方法简介宁波之猫2009-6-17目录1简介Agilent ESA-E系列是能适应将来需要的Agilent中性能频谱剖析仪解决方案。
该系列在丈量速度、动向范围、精度和功率分辨能力上,都为近似价位的产品成立了性能标准。
它灵巧的平台设计使研发、制造和现场服务工程师能自定义产品,以知足特定测试要求,和在需要时用新的特征升级产品。
该产品采纳单键丈量解决方案,并拥有易于阅读的用户界面和高速丈量的性能,使工程师能把较少的时间用于测试,而把更多的时间用在元件和产品的设计、制作和查错上。
2.面板操作区1.察看角度键,用于调理显示,以适于使用者的察看角度。
2.Esc 键,能够撤消输入,停止打印。
3.无表记键,实现左侧屏幕上紧挨的右侧栏菜单的功能。
4. Frequency Channel (频次通道)、Span X Scale(扫宽 X 刻度)和 AmplitudeY scale(幅度 Y 刻度)三个键,能够激活主要的调理功能(频次、X 轴、 Y 轴)并在右侧栏显示相应的菜单。
5.Control (控制)功能区。
6.Measure(丈量)功能区。
7.System(系统)功能区。
8.Marker (标志)功能区。
9.软驱和耳机插孔。
10.步进键和旋钮,用于改变所选中有效功能的数值。
11.音量调理。
12.外接键盘插口。
13.探头电源,为高阻抗沟通探头或其余附件供给电源。
14.Return 键,用于返回先前选择过的一级菜单。
15.Amptd Ref Out ,可供给- 20dBm 的 50MHz 幅度参照信号。
16.Tab(制表)键,用于在界线编写器和修正编写器中四周挪动,也用于在有 File 菜单键所接见对话框的域中挪动。
17.信号输进口(50Ω)。
在使用中,接 50Ω BNC 电缆,探头上一定串连一隔直电容( 30PF 左右,陶瓷封装)。
安捷伦产品手册
7697A 顶空进样器 —— 具有 111 位和 12 位样品瓶容量两种配置的最先进顶空气相色谱系统,在序列运行 过程中可以更换样品盘,从而提高样品通量
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目录 气相色谱 ...........................................................................................................................................................3
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安捷伦液相色谱
无限卓越的 UHPLC 解决方案 —— 满足所有应用和预算需求
1290 Infinity II LC
1260 Infinity LC
1220 Infinity LC
1290 Infinity II 液相色谱系统 —— 引领了 UHPLC 的未来趋势 — 具有极高的稳定性和耐用性,辅以突破性的技术,从三方面大幅提高您的业务 效率:最大化分析效率 、最大化仪器效率 、最大化实验室效率 1260 Infinity 液相色谱系统 —— 建立了更高的性能标准和可信度。同时还提供了 UHPLC 水平的分析效率、数据质量和耐用性 —— 价格却仅仅 相当于普通的 HPLC 系统 1220 Infinity 液相色谱系统 —— 用于常规 HPLC 和先进的 UHPLC 分析的高质量集成系统,使您的投资回报最大,配合移动设备平台附件,1220 Infinity 可立刻升级成为车载液相色谱仪;构建移动实验室
气相色谱分析中常见故障排除和维护
表1:密封圈尺寸 色谱柱ID 0.10 0.18 0.20 0.25 0.32 0.45 0.53
表2:大约的柱头压力(PSIG) 柱长(m)
10
12
15 20
密封圈ID(mm) 0.4 0.4 0.4 0.4 0.5 0.8 0.8
柱内径(mm)
0 0. 0. 0.32
0.45
0.53
. 20 25
注:等式1:
保护柱和保留间隙
保护柱和保留间隙是相同的,但是它们的用途不同。二者均是色谱柱前连接的1-10米脱活熔融 石英管线。脱活的熔融石英管线没有任何固定相,只是对表面进行了脱活处理,以便减小溶质 的相互作用。需使用一种合适的接头把管线连接到色谱柱上。大多数情况下,保留间隙或保留 柱的直径应与色谱柱相同。如果管线尺寸不一,则使用直径较大的保护柱或保留间隙比使用直 径较小的好。
将GC的柱温箱最高温度设定为色谱柱温度极限或稍高于该温度极限是防止热损坏的最佳方法。 这样可避免色谱柱意外过热。即使色谱柱受到热损坏,仍然可以使用。将色谱柱从检测器上卸 下来。在色谱柱的恒温温度极限下,将其加热8-16小时。把色谱柱连接到检测器的一端截去1015cm.。按正常安装色谱柱并进行老化。色谱柱 将不能恢复到原来 的性能,但仍可 使用。在热 损坏之后色谱柱的寿命会缩短。
Agilent 490-GC The Measure Anywhere Micro-GC
THE “MEASURE ANYWHERE” MICRO-GCVARIAN, INC.490-GCVARIAN, INC.Precise Gas Analysisfor Production & Research“Measure Anywhere” Micro-GCThe 490-GC Micro-GC is a rugged, compact, laboratory quality gasanalysis platform that always delivers the information you need,wherever you need it. When the composition of gas mixtures is critical,this fifth generation micro-gas chromatograph generates more data inless time for faster, and better, business decisions.The 490-GC is designed to provide maximum flexibility and ease-of-use for engineers and analysts in a variety of industries. With the490-GC you benefit from customization utilizing a full palette ofoptions, including optimized sample conditioning to achieve greatersensitivity, performance and practicality. With available autonomousoperation, operators can generate measurement results without specialtraining or skills.• Unparalleled configuration flexibility uses up to four separate GCchannels individually or together for completely self-containedoperation• Very fast answers with separations in seconds achieved through the use of narrow-bore capillary, PLOT and micro-packed columns• Quick and easy start-up delivers results in minutes, making it practical and efficient if you need to change measurement locations frequently• High performance laboratory quality results improve confidence in your decision making• Very compact dimensions, with a footprint smaller than the areaof this page, open up myriad measurement possibilities, in the laboratory, in the field, on the road and in process• Convenient array of cabinets and housing types, including 1 or channel, 3 or 4 channel “bench”, 19 in. rack mount and fully self-contained/portable, for maximum flexibility• Galaxie™ Chromatography Software from Varian for comprehensive system control, data acquisition and report generation• Extensive remote control and I/O capability to facilitate seamless integration and utilization within your existing enterprise operations The new “Measure Anywhere” 490-GC Micro-GC from Varian Modular and flexibleThe 490-GC is pre-configured/tested at the factory for your analysis and arrives ready to go. If required, the system can be reconfiguredin the field for new applications in only a few minutes with user-installable plug and play GC channels. Every channel is essentially a complete, miniaturized GC with electronic gas control, injector, narrow-bore column and detector, for fast, high efficiency separations. Each is independently controlled, including injection volume, column oven temperature and carrier gas. With micro-electronic gas control and time-programmable back-flush, you can analyze sample components of interest while eliminating those that aren’t. Back-flush capability prevents less volatile components and other undesired contaminants such as moisture from reaching the column.3Micro-machined Thermal Conductivity Detector (µ-TCD)• 00 nL internal volume eliminates peak broadening providing better data quality• Detection limit is 1 ppm for capillary columns and 10 ppm for “micro-packed” columns (component dependent)Micro-machined thermal conductivity detector.Micro-machined injector.1.5 cm1 cmMicro-machined technology for very fast resultsThe faster separations made possible by narrow-bore capillary GC columns are fully exploited when all components in the system with which the sample comes into contact are miniaturized. The micro-machined injector and thermal conductivity detector (µ-TCD) together with a narrow-bore column, deliver extremely rapid separations of gases in a matter of secondsMicro-machined injector• Silicon micro-machined injector has no moving parts for high dependability• Software-selectable injection volumes from 1 µL to 10 µL cover a wide range of applications requirements • Available back-flush capability protects the analytical column fromexcessive wear and tear• Injector can be heated to 110 °C which eliminates discrimination of higher hydrocarbons for improved performanceThe Speed You Need4A Micro-GC For Any ApplicationVARIAN, INC.Micro-machined Differential Mobility Detector (µ-DMD)The 490-GC may be equipped with a µ-DMD to provide enhanced sensitivity and tunable selectivity. The µ-DMD is fully integrated into the 490-GC. The 490-GC uses dual detection technology in which the µ-TCD and µ-DMD are connected in series. Galaxie™ Chromatography Software processes signals from both detectors, providing selective/trace information (DMD) and matrix information (µ-TCD) in a single analysis. The DMD enables the 490-GC to analyze multiple target components at trace levels with no pre-concentration required. This unique selectivity makes trace analysis possible even when the components of interest co-elute with bulk components.Gas analysis in the fieldThe diminutive size and weight of the 490-GC make it extremely practical to carry between analysis sites in the field, such as perimeter monitoring, multiple drilling locations, and at natural gas pipelines and metering stations. This is particularly important if sample integrity could be compromised in transit to a central analytical laboratory. A self-contained, portable version is available if there is carrier gas or power is available at the measurement location. Built-in gas cylinders and a rechargeable battery provide up to eight hours of productive field time. Instrument control, data analysis, and diagnostic testing canbe conducted at the instrument or remotely via the Internet.The Micro-GC in its fully self-contained field case offers “on the go”measurement convenience.Varian 490-GC with integrated DMD.5490-GC PRO for fast, reliable and fully unattended operationDesigned to be a “system” component, the 490-GC PRO does not require an external computer to generate data/results. Rather,it features onboard data collection and integration, and result generation. User-defined information is then automatically passed on to an external system (ex. process control) in a completely unattended manner. No local operator is required.For added convenience for on-line/at-line analysis, the 490-GC PRO is also available in a 19 in. rack mounted chassis. Sampling and sample conditioning devices, such as stream selection valves and Genie® membrane filters, can be mounted within the housing. The 490-GC does not use flammable gases, and requires only small quantities of inert sample gas for analysis and monitoring, making it the preferred choice for use in environments where operational safety is of paramount importance.The 490-GC PRO is initially set up via an external computer using PROStation software. The analysis method is quickly established/ optimized and calibration runs conducted and validated. The computer is then disconnected and the on-board data handling system takes over complete operation of the 490-GC PRO. Measurements are generated according to the onboard method protocol or at the behest of an external system. The system is designed for continuous operation, automatically transferring raw or processed results to anexternal system (typically a process control computer) via one of a variety of industry-standard communication protocols, including ModBus, RS-485, TCP/IP, RS- 3 , and FTP/Webserver.490-GC Micro-GC 19” rack-mounted version.The 490-GC PRO for quick and accurate, around the clock, monitoring and control.Process Monitoring & Control CapabilitiesKey applicationsThe 490-GC provides gas analysis in seconds for production andresearch, in any case where precise gas analysis saves money and addsvalue. Examples:• Natural gas/calorific value determination• Analysis of simple to complex refinery gases• Oil/gas exploration, mud-logging• Analysis and quality control of specialty gases• Biogas• Assessing efficiency of catalysts, fuel cell stacks• Air monitoringAccurate Measurements & Analyses VARIAN, INC.The analysis of extended hydrocarbons in natural gas.Extended HydrocarbonsThe analysis of THT (odorant) in natural gas.The analysis of hydrocarbons innatural gas.HydrocarbonsThe analysis of permanent gases innatural gas.Even More GC Solutions from VarianThe Varian 400-GC series is a family of high performance gas chromatographs and application-specific analysis solutions that offers faster separations and increased confidence in results for the broadest range of GC analyses.Varian, Inc. is also one of the leading suppliers of GC/MS - providing ion trap mass spectrometers and quadrupole mass spectrometers coupled with Varian 450-GC or 431-GC gas chromatographs. Galaxie™ Chromatography Software is a scalable software solution that manages all your chromatography data. Whether in standalone or client/server mode, Galaxie software provides all the data handling and instrument control functions necessary for the modern chromatography laboratory, no matter how large or small Varian offers the highest quality, most reproducible GC capillary columns with the most demanding quality assurance specifications in the industry. We control the entire process in-house, from design and production of the tubing and stationary phases, to column manufacture, testing and dispatch.Ensuring clean gas delivery is essential for accurate gas chromatography. Varian’s Gas Clean™ Filters provide leak-free filter replacement that reduces downtime. They are very economical, with immediate payback, and the highly sensitive filter indicators provide maximum instrument protection.AccessoriesMicro-GasifierThe Micro-Gasifier provides controlled LPG (Liquid Petroleum Gas) and LNG (Liquefied Natural Gas) sample evaporation before the sample is introduced into the gas chromatographic injector for analysis. In addition, high pressure gas samples can be reduced without creating cold spots, preventing discrimination in the sample.The Micro-GC accessory bracket The Micro-GC accessory bracket is an on-board universal mounting platform for accessories and will take one channel position in the Micro-GC. With the accessory bracket, stream selection valves, Micro-Gasifier, Genie® membrane filters, pressure regulator, sample pressure sensors and sample relief valves can be integrated.Syringe injectionThe gas sample can be injected with a syringe in the Micro-GC via the optional inlet on the front of the instrument. The sample can be introduced via a septum cap or by using a Luer-lock connection.Genie Membrane Filter The Genie membrane filter will remove particles and liquids from your gas sample. The filter is suitable for ppb up to percentage level analysis, is fully inert, and is compliant for caloric valuedetermination methods.Varian manufactures acomprehensive range of all the GC consumables you need.Externally-mounted Gasifier.Integrated Sample conditioning in the 490-GC.Syringe injection optional.THE “MEASURE ANYWHERE” MICRO-GCSI-0 /A/11/09 Printed in the UKVarian offers robust instrumentation, application-based consumables, and customer-focused services, backed by our global team of product and applications experts, ready to help you solve your analytical challenges. Whether you’re monitoringimpurities in drinking water, designing new therapeutic drugs, or developing cleaner fuels, our solutions deliver the sensitivity, flexibility and productivity your laboratory requires.Galaxie, Gas Clean, Varian and the Varian Logo are trademarks or registered trademarks of Varian, Inc. in the U.S. and other countries. All other trademarks acknowledged. © 009 Varian, Inc.Shop OnlineVarian offers the added convenience of purchasing products online. The products you need are just a few clicks away at We are committed to meeting your needs with a full range of consumable products and supplies. Call today to request your free copy of our comprehensive analytical supplies catalog or download it from our web site.Chromatography • Spectroscopy • Mass Spectrometry • Magnetic Resonance Spectroscopy and Imaging • X-Ray Crystallography • Dissolution • Consumables • Data Systems • VacuumVarian, Inc.North America: 800.9 .3000, 9 5.939. 400 Europe The Netherlands: 31.118. .1000 Asia Pacific Australia: 13.95 0. 133 Latin America Brazil: 55.11.3 38.0400Other sales offices and dealers throughout the world _ check our Web site.Varian Care ProgramOur goal is to help you increase your productivity, maximize your uptime and achieve the highest return possible on your investment. Our experienced and highly-qualified support organization is strategically located throughout the world to ensure rapid response.Be confident knowing that your instrument will deliver maximum performance, your users are fully trained and expert technicians will respond quickly to your support needs — because Varian cares.VARIAN, INC.490-GC。
Agilent 490 Micro GC Genie Filter Brackets Install
Agilent 490 Micro GCInternal and External Mount Genie Filter BracketsInstallationThe Genie Filter Bracket kits include mounting hardware to install a sample line filter on an Agilent 490 Micro GC. Agilent supplies mounting hardware to install the filter either on the back of the GC or inside the GC right panel.Accessory KitsOne external mount and four internal mount accessory kits are available:Inspect the Shipping ContainerInspect the shipping carton carefully for damage or signs of rough handling. Report any damage to the carrier and to your local Agilent sales office. Do not open if you suspect damage to the accessory.Kit Description CP741527External bracket G3581-60038Internal bracketG3581-60039Internal bracket for 1 Genie 170 filter for sample inlet 1, preassembled G3581-60040Internal bracket for 1 Genie 170 filter for sample inlet 2, preassembled G3581-60041Internal bracket for 2 Genie 170 filters, preassembledParts SuppliedTable 1Parts supplied per accessoryPart number Description G3581-60038G3581-60039G3581-60040G3581-60041CP741527 G3581-00131Internal bracket1111–G3581-00132Relieve / Genie Filter Bracket1111–CP86755Screw, M3 x 6mm RX 8.8 SV1111–CP740536Flanged nut, M4––––2CP86736Screw, M4 x 12 mm T20 Torx––––2CP86757Screw, M4 x 8 Torx 8.8 SV––––2 1290116500Screw, 8/32 x 1/4-inch–2242–112–VLT61C30Tubing 1/16 in. 0.75mm, 61cm316SSVLZN1Valco 1/16 in. SS nut–336––336–VLZF110Ferrule, SS for fitting 1/16 in.,10/pk––––1CP741087Bracket, Genie/Valco valveMicro GC392590006Genie 170 Filter, Micro GC–112–Part IdentificationFigure 1 shows the parts included with the CP741527 accessory kit, external filter mount.Figure 1 External bracket mounting parts (CP741527)Figure 2 shows the brackets used for an internal filter mount.Figure 2Internal bracket mounting parts (used with G3581-60039, G3581-60040, and G3581-60041)Bracket, valve CP741087Screw, M4 x 8 mm T2O Torx, CP86757Flanged nut, M4, CP740536Screw, M4 x 12 mm T2O Torx, CP86736Screw, 8/32 x 1/4-inch1290116500Bracket, G3581-00131Filter bracket G3581-00132Figure 3 shows the Genie 170 Filter for the Micro GC.Figure 3Genie 170 Filter for Micro GC (392590006)Tools Required•T10 and T20 Torx driver •Flathead screw driver •3/16-inch open-end wrench •5/16-inch open-end wrench •1/4-inch open-end wrench •7/16-inch open-end wrenchInformationA Field Case does not permit mounting of an external valve. If using a Field Case for the Micro GC, you must mount the Genie filter internally.Never transport the Micro GC with an external valve mounted in the bracket! Before transporting the GC, remove the valve from the bracket.Installation of External Genie Filter BracketThe Genie Filter Bracket (CP741527) mounts a Genie filter 170or a valve on the 490 Micro GC. During installation, refer to theparts shown in Figure 1.1Prepare the Micro GC. Cool all heated zones, then turn offthe instrument.2At the back of the Micro GC, use a Torx-20 screwdriver toremove the two screws shown below.Figure 4Remove two screws from back panel3Mount the bracket to the GC using the two M4 x 12 mm screws provided.Figure 5Bracket shown installed, with filter4Mount the Genie Filter 170 to the bracket using two pan head screws (1290116500). See Figure 5.5Mount an external valve to the side of the bracket as shown in Figure 6. Use the included flanged M4 nuts and M4 x 8 mm screws (CP86757).Figure 6Bracket shown installed with filter and valveInstallation of Internal Genie Filter BracketsThe internal mount Genie Filter Brackets allow you to mountone or two Genie filters inside the 490 Micro GC in the sample 1and sample 2 positions. Kit G3581-60038 provides only themounting hardware. The other kits come partiallypreassembled, with one or more filters installed at the factory.During installation, refer to the parts shown in Figure 2 onpage 3.1Prepare the Micro GC. Cool all heated zones, then turn offthe instrument.2Lower the right side cover.3From the right side of the Micro GC, use a Torx-20screwdriver to remove the top left M4 x 8 mm screw(CP86757) shown in Figure 7. Loosen the two screws at thebottom of the open area.Figure 7Remove three screws4For units with a heated sample line: Remove the top and side insulation from the heated sample line to expose the internal sample inlet.Figure 8Lift the top insulation from the heated sample line5Disconnect each channel’s sample line from the hexagonal sample-in manifold.NOTE: For older GC’s, loosen the two T10 Torx screws oneither side of the internal sample inlet connector (elbowfitting) one turn (do not remove). Rotate the sample inlet connector 90 ° counter-clockwise and remove.a Remove the T10 Torx screw that secures the hexagonalsample-in manifold.b Carefully lift the heated sample bracket to expose thesample-in manifold.c If needed, temporarily label each sample line connected tothe hexagonal sample-in manifold. Then, use an adjustable wrench and a 3/16-inch wrench to remove each sampleline from the sample-in manifold.6Feed each sample line through the appropriate slot in the bottom bracket (G3581-00131).7Reconnect the sample lines to the sample-in manifold and reassemble the heated sample line box.8G3581-60038 only: Assemble the bottom bracket (G3581-00131) and sample inlet box as shown in Figure 9below, then secure in place using the three screws previously removed.Figure 9Bottom bracket installed9G3581-60038 only: Assemble the bracket (G3581-00132) onto the bottom bracket using a M3 x 6 screw (CP86755).Figure 10Assembled brackets installed, no filters shown10G3581-60039, G3581-60040, G3581-60041 only: Assemble the sample inlet oven box and filter bracket assembly into the GC. (See Figure 11 for an example.) Secure in place using the three screws previously removedFilter InstallationFor kit G3581-60038, the filters, tubing, and fittings are not supplied.Mount each filter to the bracket using two pan head screws (1290116500).Figure 11 Install the Genie filter (left, right, or both)For kits G3581-60039, G3581-60040, and G3581-60041, thefilters come assembled to the brackets.Bolts for membrane inspection and exhangeFor sample inlet 2For sample inlet 1Bypass tubingGas ConnectionsConnect the Genie filters to the Micro GC as described below.Accessory kits G3581-60039, G3581-60040, and G3581-60041come with preassembled filters, tubing, and connectors. For kitG3581-60038 you must purchase the tubing and connectorsneeded to make the connections.Connecting the Genie filters to the sample input fittingsrequires 1/16-inch stainless steel tubing and 1/16-inch zerodead volume fittings. If tubing assemblies were not supplied inyour kit:•Use a high-quality tubing cutter. For a good seal, avoiddeforming the tubing ends.•Avoid sharp bends in the tubing. Sharp bends can deform thetubing and restrict flow.For each sample inlet, connect the filter as follows:1For GCs with a heated sample line, remove the top insulationfrom the internal heated sample line box.2Disconnect the rear bulkhead fitting line from the sampleinput fitting.3Connect the line from the rear bulkhead fitting to the bottomof the Genie filter.Figure 12Genie filter gas connections4Connect the Genie filter sample outlet to the GC’s internal sample input fitting.Figure 13Plumbing a filter to a sample input5Connect the filter bypass outlet to a safe vent location in accordance with your SOPs and local environmentalregulations (for example, to a fume hood). The bypass line carries residual sample gas. (See Figure 14.)Figure 14 General gas connections (single inlet GC shown)6For a heated sample line, reinstall the insulation.7Connect the sample line to the rear sample inlet of the 490Micro GC using 1/16-inch Swagelok fittings. 8Restore the GC to operating condition.Bolts for membrane inspection and exchangeRear sample inlet #1Bypass tubing (not provided)Genie filterWarrantyThe material contained in this document is provided “as is,” and is subject to beingchanged, without notice, in future editions. Further, to the maximum extent permitted byapplicable law, Agilent disclaims all warranties, either express or implied, with regard tothis manual and any information contained herein, including but not limited to the impliedwarranties of merchantability and fitness for a particular purpose. Agilent shall not beliable for errors or for incidental or consequential damages in connection with thefurnishing, use, or performance of this document or of any information contained herein.Should Agilent and the user have a separate written agreement with warranty termscovering the material in this document that conflict with these terms, the warranty termsin the separate agreement shall control.© Agilent Technologies, Inc., 2016Printed in USA or ChinaG3581-90017First edition, June 2016Agilent Technologies, Inc.2850 Centerville RoadWilmington, DE 19808-1610 USA安捷伦科技(上海)有限公司上海市浦东新区外高桥保税区英伦路412号联系电话:(800)820 3278G3581-90017。
Agilent 490-GC mercaptans analyzer 说明书
Key Benefi tsHigh sensitivity and unique selectivity. Offering extremely high sensitivity and unique selectivity, the Mercaptans in Gas Analyzer monitors mercaptan and other selected sulfur components in hydrocarbon streams precisely and quickly. It measures the desired levels of these components with no matrix interference so you can be confi dent of the quality of your results. Dual-detector technology. The analyzer features the fl exibility and versatility of complementary dual-detector technology, a universal Thermal Conductivity Detector (μ-TCD) and a highly sensitive Differential Mobility Detector (μ-DMD) used in series, providing a comprehensive analysis of your sample.The Varian 490-GC Mercaptans in Gas Analyzer equipped with the micro-machined Differential Mobility Detector (μ-DMD) provides fast, precise monitoring of mercaptans in hydrocarbon streams, with the option of selecting other targeted sulfur components as well. Naturally occurring, mercaptans are strong-smelling, sulfur-based compounds that can be extremely corrosive and toxic, thereby impacting industrial process performance and the environment. Efforts are underway to signifi cantly reduce sulfur emissions from fuels.Electronic Gas Control. EGC ensures high reproducibility and the use of capillary column technology guarantees high separation effi ciency. Turnkey solution. To ensure fast, accurate and reliable analysis according to the analyzer specifi cations, the Mercaptans in Gas Analyzer is factory pre-tuned and supplied with full documentation and an operational method.High-speed analysis. The total cycle time of less than 90 seconds makes for productive workfl ows. Measure-anywhere capability. Its compact size makes the Analyzer suitable for on-line/at-line monitoring of operational odorant levels, as well as for analysis in the laboratory.SI-2245/A/02.10 Printed in the UK490-GC Mercaptans in Gas AnalyzerAmong the most common elements worldwide, sulfur can be found in many different component structures and is naturally present in fossil fuels, including C1-C4 mercaptans. Sulfur can be extremely corrosive and toxic, impacting the environment and the performance of many industrial processes, causing chemical reactions, pipeline corrosion and the poisoning of catalysts.The μ-DMD is fully integrated into the 490-GC and uses dual detection technology in which the μ-TCD and μ-DMD are connected in series. Varian Galaxie TM chromatography software processes signals from both detectors, providing selective/trace information (μ-DMD) and matrix information (μ-TCD) in a single analysis.Specifi cationsApplicabilityThe determination of methyl mercaptan, ethyl mercaptan, iso-propoyl mercaptan, n-propyl mercaptan and TBM in gaseous hydrocarbon streams. Operational parameters, including gas fl ows, are factory-tuned and documented.External RequirementsSample must be offered as a gas, 0 °C to 110 °C, with a pressure from ambient up to 1 bar Sample InletHeated sample inlet 1/16 in. Valco®Analysis TimeThe cycle time is less than 90 seconds Dynamic Range• Differential Mobility Detector (μ-DMD), generally threedecades but component dependent• Micro-Thermal Conductivity Detector (μ-TCD), sixdecadesMinimum Detectability• μ-TCD, 5 mg/m 3 (1 ppm) for C5• μ-DMD, 0.2 mg/m 3 CH 3SH (100 ppb), 0.3 mg/m 3 C 2H 5SH(100 ppb), 0.35 mg/m 3 i-C 3H 7SH (100 ppb), 0.35 mg/m 3n-C 3H 7SH (100 ppb) and 0.4 mg/m 3 TBM (100 ppb)Repeatabilityμ-DMD, better than 3% relative standard deviation at 10-20 times the minimum detectability, measured over at least 20 consecutive runs Hardware confi guration• Single channel dual detector confi guration, based onthe 490-GC• Option of up to two additional GC channels using theuniversal μ-TCD detectorChromatography • Spectroscopy • Mass Spectrometry • Magnetic Resonance Spectroscopy and Imaging • X-Ray Crystallography • Dissolution • Consumables • Data Systems • VacuumGalaxie, Varian and the Varian logo are trademarks or registered trademarks of Varian, Inc. in the U.S. and other countries. All other trademarks acknowledged.© 2010 Varian, Inc.Varian, Inc.North America: 800.926.3000, 925.939.2400Europe The Netherlands: 31.118.67.1000Asia Pacifi c Australia: 613.9560.7133Latin America Brazil: 55.11.3238.0400Other sales offi ces and dealers throughout the world _check our Web site.。
气相色谱和液相色谱微型化中的关键问题
气相色谱和液相色谱微型化中的关键问题中国科学院大连化学物理研究所现代分析与微型仪器研究室目前分析仪器微型化的浪潮汹涌澎湃,人们以极大的热情投入到这个浪潮中。
从世界各地的实验室里出现的原理型样机看上去是如此的微小、简洁和令人惊诧,有如此多的加工工艺可以应用在微型器件的加工和组合上从非常昂贵的、在超净房间才能使用的精密仪器设备和工艺到土法上马、在普通房间就能操作的加工手段。
它的前景是那样的诱人,引无数英雄一试身手。
从1986 年我第一次听说微型气相色谱仪并看到相关文章,就认定它是色谱发展的未来。
1987 年底我在荷兰第一次看到它时,就下决心今生一定研究微型色谱,因为它从观念上、认识上打开了分析仪器微型化的大门。
真正开始研究微型气相色谱(μ2GC) 是在1992年的春天,从715 万元的经费和国内无辅助加工条件的困难境地开始的。
至今,科技部、国家自然科学基金委、中国科学院、前国家教委、辽宁省科委和本单位对我们研究组在微型色谱仪方面的投入已有300 万,我们研制的微型气相色谱仪已经在2002 年6 月通过科技部的攻关课题验收。
目前在国家自然科学基金委仪器研制专项基金的支持下,正在进行阵列式微型液相色谱/ 电色谱的研究工作。
10 年多的科学实践使我认识到:要进行色谱仪器的微型化,首先要对色谱仪器和色谱原理有十分深入的认识,不仅从化学上,更要从基本的物理知识、统计热力学、材料学、力学、数学、机械和电子器件制造技术上全面认识;要对色谱仪器的每一个部件和零件的原理、材料、设计、尺寸等因素对部件或器件性能的影响有深入的定量的研究,以及它们对整机性能的定量影响。
在色谱仪器微型化过程中,尺寸的缩小不仅要考虑材料的性质和制造上的可能,还要从原理上考虑尺寸缩小后所带来的一系列问题。
这些问题包括: (1) 分离系统中被分配的分子个数是否大于106 ,因为只有大于106 才能得到符合统计结果的数据;(2) 因分离通道尺寸缩小,自然提高了单位柱长的效率,但是总长度的减少可能使总分离效能远低于常规仪器; (3) 对于质量敏感型检测器,经过分离柱后单位时间内到达检测器的分子个数是否满足检测原理所要求的最小数目; (4) 对于浓度型检测器,到达检测池的分子数目是否能满足符合统计规律的分子数目; (5) 检测微区内的外加能量密度是否超过被检测分子所能承受的极限; (6) 微量流动相的输送与控制; (7) 因材料尺寸的缩小,表面层氧化或腐蚀对器件功能的影响。
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• 简单的启动步骤:490 微型气相色谱仪就位后即可提供对气体和蒸气流的 实验室和现场分析所需的结果和耐用性。启动步骤十分简单快速,可以 与电子数据表 (EDS) 无缝衔接,该电子数据表存储了操作历史以及每个气 相色谱通道最后使用的方法。可通过计算机和互联网使用行业标准协议
300 mL 气瓶,最大压力为 12400 kPa (1800 psi)。可通过经认证的适配器、安全释放阀(避免过度加 压)和每个气瓶的压力读数实现轻松重新填充 - 最多可以使用两种不同类型的载气。载气选择: - 氦气 - 氩气 - 氮气 - 可充电电池组,具有可选的备用电池组,最长可实现 8 小时连续运行 - 双通道系统,26.9 cm(高)× 53.8 cm(宽)× 40.6 cm(深) - 四通道系统,31.6 cm(高)× 80.2 cm(宽)× 52 cm(深) - 包含 Agilent 490 微型气相色谱仪的重量,最轻 15 kg(取决于配置)
Agilent 490 微型气相色谱天然气分析仪
5991-0301CHCN
附件
表 4. 附件
部件号 CP17970 CP17971 CP17971P CP7988 CP738407
描述
Gas Clean 氧气过滤器 Gas Clean 水分过滤器 Gas Clean 过程水分过滤器 用于一个过滤器的连接单元(1/8 英寸管路) 用于两个过滤器的连接单元(1/8 英寸管路)
本资料中的信息、说明和指标如有变更,恕不另行 通知。
© 安捷伦科技(中国)有限公司,2016 2016 年 12 月 23 日,中国出版 5991-6034CHCN
• 软件可选择样品泵或连续采样 模式
• 流路选择继电器控制(需要扩 展板)
• 支持多位流路选择阀 • 进样口可以安装在前面或后面
通讯
• 模拟输入,六种信号 (0-10 V) • LAN (TCP/IP) • 串口 (RS232),用于控制流路选
择阀 • 网络服务器,在标准互联网浏览
器中显示仪器状态
数据处理软件
主要优势
• 满足您需求的速度:在几秒(而非几分钟)内实现精确的气体分析,可 帮助油气勘探、炼油、天然气生产和输送、燃料电池开发以及特种气体 生产等行业获得更高的产品质量和更准确的产品评估
• 充分的灵活性:Agilent 490 微型气相色谱仪是一款耐用、紧凑的分析仪, 可以在实验室内、在线和现场进行气体质量分析。490 微型气相色谱仪配 备先进的微机械和计算技术,可提供一至四个分析型气相色谱通道。每 个通道均为一套配有气路、进样器、色谱柱和检测器的独立气相色谱系 统。可更换的气相色谱通道或模块可以让用户针对任何应用对系统进行 快速、简单的重新配置
如需了解关于安捷伦科技公司产 品、应用和服务的更多信息,请联 系您当地的安捷伦分公司。如需获 取完整列表,请访问:
/find/contactus
查找当地的安捷伦客户中心: /chem/contactus-cn
免费专线:800-820-3278 400-820-3278(手机用户)
• 输出,12 VDC,最大 130 W
应用
490 微型气相色谱仪是以下应用的理 想选择:
• 天然气、热值测定 • 炼厂气分析 • 油气勘探、录井 • 沼气分析 • 空气监测 • 特种气体质量控制 • 矿井安全分析 • 催化剂研究 • 燃料电池分析
尺寸和重量
表 1. 尺寸和重量
类型 Agilent 490 微型气相色谱仪 ― 双通道 Agilent 490 微型气相色谱仪 ― 四通道 通道 模块
490 微型气相色谱由 Agilent OpenLAB CDS EZChrom 版本和 Agilent OpenLAB CDS ChemStation 版本控制。
• 根据 ISO 6976、GPA 2172 和 ASTM D3588 计算天然气物理性质,例 如热值、相对密度、沃泊指数
• OpenLab 智能报告可提供自定义 报告和计算
392590006(Genie 170 - 最大 300 cc/min) 392590001(Genie 101 - 最大 1440 cc/min)
Genie 膜过滤器 - 全惰性膜技术 - 符合 BTU 热值应用的要求 - 去除气体样品中的颗粒物 - 去除气体样品中的液体
有关部件号信息,请联系您当地的客 户服务中心。
检测器
• 微机械热导检测器 (TCD) • 双通道(样品和参比) • 内部体积,每个通道 200 nL • 灯丝,四根
检测限,TCD
检测限*:
• 柱长 4-10 m 的 WCOT 毛细管柱 (CP-Sil 5 CB、CP-Sil 13 CB、CPSil 19 CB 和 CP-WAX 52 CB)的检 测限为 0.5 ppm
• 进样口连接,3.2 mm(1/8 英寸) 不锈钢压缩接头 (Swagelok)
进样
• 样品进样口,1.6 mm(1/16 英 寸)不锈钢 Valco 接头,带有可 更换的 5 µm 不锈钢过滤器
• 样品条件,无冷凝气体(0 °C 至 110 °C)
• 最大样品进样口压力,100 kPa (14.5 psi)
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重量 kg 磅 6.5 14.4 10.6 23.4 1.0 2.1
高度 英寸 cm 11 28 11 28
25 18.5
宽 英寸 cm 6.5 16 6.5 16
12 12
深度 英寸 cm 12 30 21.5 55
8.5 8.5
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选件列表
表 2. Agilent 490 微型气相色谱仪选件
产品编号
操作范围,TCD
• 浓度,1 ppm 至 100% • 线性动态范围,106
重现性
在恒温和恒压下,WCOT 色谱柱中 1 mol% 丙烷的 RSD 小于 0.5%
载气
• He、H2、N2 或 Ar,550 ± 10 kPa (80 ± 1.5 psi) 输入
• 在一台仪器中最多可使用两种不 同类型的载气
• PLOT 色谱柱(Molsieve 5A、 PoraPLOT Q、PoraPLOT U、 Aluminumoxide、SilicaPLOT)的检 测限为 2 ppm
• 微填充柱(Hayesep、MES)的检 测限为 2 ppm
• 微填充柱 (Carboxene) 的检测限为 10 ppm
* 检测限是在使用适当的柱长和色谱 条件下选定组分表现出的典型值
G7623A 选件 #001 (100-120 V)
微型气化器,可加热的气化/减压装置 - 控制 LPG 或 LNG 样品的蒸发 - 控制高压气体样品的减压 - 操作温度出厂设置为 100±10 °C - 样品进样口压力:最大压力 1000 psi/7000 kPa - 样品交叉污染:< 1% RSD,使用己烷测量所得 - 样品出口压力 7.5 psi ± 2.5 psi
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流路选择阀,多达 16 个样品流路,适用于多流路分析,具有两个主要的阀类型 - SD(封闭)阀选择 4 到 16 个流路中的一个 - SF(流通)阀选择流路,并将其输送到出口
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一体式通用附件支架(占用 Agilent 490 微型气相色谱仪中的一个通道位置) - 流路选择阀 - 微型气化器 - Genie 膜过滤器 - 压力调节器 - 样品压力传感器 - 样品释放阀
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相关安捷伦文献
表 3. Agilent 490 微型气相色谱仪相关文献
出版物名称
出版号
Agilent 490 微型气相色谱仪产品样本
5991-6041CHCN
用于过程监测的 Agilent 490-PRO 微型气相色谱仪 5991-6056EN
Agilent 490 微型气相色谱沼气分析仪
5990-9517CHCN
2
19 英寸外壳,可用于可配置 多种附件的双通道 490 微型气 相色谱仪
• 流路选择阀 • 微型气化器 • Genie 膜过滤器 • 样品压力传感器
环境要求
• 湿度(相对),0% 至 95% 非冷凝 • 温度,0 °C 至 50 °C • 已证实最高海拔 2000 m
电源要求
• 主电源,90-130 Vac 或 180-260 Vac,50-60 Hz
件进行选择 • 可选配加热进样器,温度最高
110 °C,包括加热样品传输线 • 可选的反吹功能
柱温箱
温度范围,高达 180 °C,恒温
可用的色谱柱填料: • CP-Sil 5 CB • NGA 专用 CP-Sil 5 CB • TBM 专用 CP-Sil 13 CB • CP-Sil 19CB • THT 专用 CP-Sil 19 CB • CP-WAX 52 CB • Molesieve 5A • Aluminumoxide • PoraPLOT Q • PoraPLOT U • Hayesep A • COX • SilicaPLOT • NGA 专用 MES