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二甲氧基膦酰基乙酸叔丁酯气相测试方法

二甲氧基膦酰基乙酸叔丁酯气相测试方法

二甲氧基膦酰基乙酸叔丁酯气相测试方法【原创版3篇】目录(篇1)一、引言二、二甲氧基膦酰基乙酸叔丁酯的概述三、气相测试方法的原理四、气相测试方法的步骤五、气相测试方法的注意事项六、结论正文(篇1)一、引言二甲氧基膦酰基乙酸叔丁酯(分子式:C8H17O5P,英文名称:tert-butyl P)是一种有机磷化合物,具有优良的耐热性和耐酸性,广泛应用于农药、医药和染料等领域。

在工业生产和科研过程中,对其物理和化学性质的研究是至关重要的。

气相测试方法是一种常用的分析手段,可对二甲氧基膦酰基乙酸叔丁酯进行定性、定量分析。

本文将详细介绍二甲氧基膦酰基乙酸叔丁酯的气相测试方法。

二、二甲氧基膦酰基乙酸叔丁酯的概述二甲氧基膦酰基乙酸叔丁酯是一种有机化合物,分子量为 224.1913,英文名称为 tert-butyl P。

它具有以下特点:1.具有良好的耐热性和耐酸性;2.在农药、医药和染料等领域具有广泛的应用;3.是一种重要的有机磷化合物。

三、气相测试方法的原理气相测试方法是利用样品在气相状态下,与其他气体分子间的相互作用力,进行样品的分离和检测。

对于二甲氧基膦酰基乙酸叔丁酯,气相测试方法通常采用气相色谱法(GC)进行分析。

其原理是:将样品与载气混合后,注入色谱柱,由于样品中各组分在移动相和固定相间的分配系数不同,从而达到分离的目的。

检测器对分离后的样品进行检测,从而实现对二甲氧基膦酰基乙酸叔丁酯的定性和定量分析。

四、气相测试方法的步骤气相测试方法的步骤如下:1.样品准备:将二甲氧基膦酰基乙酸叔丁酯样品准备好,通常需要进行精确称量;2.色谱柱安装:将色谱柱安装到气相色谱仪上;3.样品注入:将样品与载气混合后,注入色谱柱;4.分离:样品在色谱柱中进行分离;5.检测:检测器对分离后的样品进行检测;6.数据处理:根据检测结果进行数据处理,得出二甲氧基膦酰基乙酸叔丁酯的定性和定量分析结果。

五、气相测试方法的注意事项在进行气相测试方法时,需要注意以下几点:1.样品的称量要准确,以保证测试结果的精度;2.选择合适的色谱柱,以提高分离效果;3.注射样品时,应避免产生气泡,以免影响测试结果;4.在检测过程中,要保证检测器的灵敏度和稳定性;5.对测试结果进行充分的数据处理,提高测试结果的可靠性。

防晒化妆品中15种紫外线吸收剂的检测

防晒化妆品中15种紫外线吸收剂的检测

防晒化妆品中紫外线吸收剂的检测防晒剂即紫吸收剂。

它能吸收紫外线中可引起人产生急性皮炎(红斑)和皮肤灼伤的波长为280~320nn的中波紫外线(即U.V.B)和(或)可使皮肤变黑的波长32~400nn的长波紫紫外线(即U.V.A)。

化妆品中紫外线吸收剂用量过多对皮肤有不利影响,因此,化妆品卫生标准规定了防晒剂的使用量(见附录1中的表5)-、对甲氧肉桂酸乙氧乙酯高效液相色谱法(HPLC)对甲氧肉桂酸乙氧乙酯:(4-甲氧肉桂酸-2-乙氧乙酯,C14H18O4,分子量250.29)是淡黄色透明的粘稠性液体,266Pa时沸点为184~187℃;在水中溶解度为0.05%,在甘油中为0.5%,在丙二醇中约5%,能经任意比例与其它醇类、植物油相混合;吸收波长280~320nm,常作紫外吸收剂。

我国化妆品卫生标准规定最大允许浓度为10%。

1 应用范围本方法适用于化妆品中对甲氧肉桂酸乙氧乙酯的测定。

2 原理样品中的对甲氧肉桂酸乙氧乙酯溶解于四氢呋喃等有机溶剂,有机溶剂提取后用高效液相色谱定性、定量。

3 试剂3.1 四氦呋喃:色谱纯。

(1)3.2 乙腈。

3.3 对甲氧肉桂酸乙氧乙酯标准溶液:精确称取对甲氧肉桂酸乙氧酯0.5g,用少量四氢呋喃溶解,移入100.0ml容量瓶中并定容至刻度。

移取10.0ml置于50.0ml容量瓶中,用四氢呋喃定容至刻度。

此溶液1.00ml含1000?g对甲氧肉桂酸乙氧乙酯。

4 仪器4.1 高效液相色谱仪:具紫外分光光度检测器4.2超声波仪。

5 分析步骤5.1 样品预处理5.1.l 液体、乳液、膏霜(2):称取约0.1~2.0g(3)样品于50m1离心管中,加20m1四氢呋喃。

用超声波充分溶解混匀后加四氢呋喃至50.0ml。

溶液中有不溶物时离心分离。

取上清液用。

(4)5.1.2 指甲油:称取约1.0g样品(3)于50ml离心管中,加15ml乙腈,搅拌均匀,加水至25.0ml,3000r/min离心10min,或用聚四氟乙烯滤膜过滤,取上清液备用。

Trigonox B(滴苷但羊水)产品数据表单说明书

Trigonox B(滴苷但羊水)产品数据表单说明书

Product Data SheetTrigonox BDi-tert-butyl peroxideTrigonox® B is a pure peroxide in liquid form.CAS number110-05-4EINECS/ELINCS No. 203-733-6TSCA statuslisted on inventory Molecular weight 146.2Active oxygen contentperoxide10.94%SpecificationsAppearance Clear liquidAssay≥ 99.0 %ApplicationsTrigonox® B (Di-tert-butyl peroxide) can be used for the market segments: polymer production, polymer crosslinking and acrylics production with their different applications/functions. For more information please check our website and/or contact us.Half-life dataThe reactivity of an organic peroxide is usually given by its half-life (t½) at various temperatures. For Trigonox® B in chlorobenzene half-life at other temperatures can be calculated by using the equations and constants mentioned below:0.1 hr at 164°C (327°F)1 hr at 141°C (286°F)10 hr at 121°C (250°F)Formula 1kd = A·e-Ea/RTFormula 2t½ = (ln2)/kdEa153.46 kJ/moleA 4.20E+15 s-1R8.3142 J/mole·KT(273.15+°C) KThermal stabilityOrganic peroxides are thermally unstable substances which may undergo self-accelerating decomposition. The lowest temperature at which self-accelerating decomposition may occur with a substance in the packaging as used for transport is the Self-Accelerating Decomposition Temperature (SADT). The SADT is determined on the basis of the Heat Accumulation Storage Test.SADT80°C (176°F)Method The Heat Accumulation Storage Test is a recognized test method for thedetermination of the SADT of organic peroxides (see Recommendations on theTransport of Dangerous Goods, Manual of Tests and Criteria - United Nations, NewYork and Geneva).StorageDue to the relatively unstable nature of organic peroxides, a loss of quality will occur over a period of time. To minimize the loss of quality, Nouryon recommends a maximum storage temperature (Ts max. ) for each organic peroxide product.Ts Max.40°C (104°F) andTs Min.-30°C (-22°F) to prevent crystallizationNote When stored according to these recommended storage conditions, Trigonox® Bwill remain within the Nouryon specifications for a period of at least 6 months afterdelivery.Packaging and transportIn North America Trigonox® B is packed in non-returnable, five gallon polyethylene containers of 30 lb net weight and steel drums of 100 or 340 lb net weight. In other regions the standard packaging is a 30-liter HDPE can (Nourytainer®) for 20 kg peroxide. Delivery in a 200 l steel drum for 150 kg peroxide is also possible in a number of countries. Both packaging and transport meet the international regulations. For the availability of other packed quantities consult your Nouryon representative. Trigonox® B is classified as Organic peroxide type E; liquid, Division 5. 2; UN 3107.Safety and handlingKeep containers tightly closed. Store and handle Trigonox® B in a dry well-ventilated place away from sources of heat or ignition and direct sunlight. Never weigh out in the storage room. Avoid contact with reducing agents (e. g. amines), acids, alkalis and heavy metal compounds (e. g. accelerators, driers and metal soaps). Please refer to the Safety Data Sheet (SDS) for detailed information on the safe storage, use and handling of Trigonox® B. This information should be thoroughly reviewed prior to acceptance of this product. The SDS is available at /sds-search.Major decomposition productsAcetone, Methane, tert-ButanolAll information concerning this product and/or suggestions for handling and use contained herein are offered in good faith and are believed to be reliable.Nouryon, however, makes no warranty as to accuracy and/or sufficiency of such information and/or suggestions, as to the product's merchantability or fitness for any particular purpose, or that any suggested use will not infringe any patent. Nouryon does not accept any liability whatsoever arising out of the use of or reliance on this information, or out of the use or the performance of the product. Nothing contained herein shall be construed as granting or extending any license under any patent. Customer must determine for himself, by preliminary tests or otherwise, the suitability of this product for his purposes.The information contained herein supersedes all previously issued information on the subject matter covered. The customer may forward, distribute, and/or photocopy this document only if unaltered and complete, including all of its headers and footers, and should refrain from any unauthorized use. Don’t copythis document to a website.Trigonox® and Nourytainer are registered trademarks of Nouryon Functional Chemicals B.V. or affiliates in one or more territories.Contact UsPolymer Specialties Americas************************Polymer Specialties Europe, Middle East, India and Africa*************************Polymer Specialties Asia Pacific************************2022-6-30© 2022Polymer crosslinking Trigonox B。

Blue White C2F242XVA Diaphragm Metering Pump 说明书

Blue White C2F242XVA Diaphragm Metering Pump 说明书

Home > Blue White > Blue White > Pumps > Metering Pumps > Diaphragm metering > C2F242XVAItem#: 62242-002 | Model#: C2F242XVA Series#: C2F2XXXXXXXDescription:Blue White C2F242XVA Chem-Pro C2 Diaphragm MeteringPump. Single Manual Output Control Mode (manual control),115V/60Hz, power cord NEMA 5/15 plug (US)Price: USD $162684Buy NowTechnical SpecificationSeries Control Options Single Manual Output Control Mode (manual control)Max Stroke Per Minute166 RPMInput Voltage115V/60Hz, power cord NEMA 5/15 plug (US)CAM Stroke Length.060? (1.52 mm) Stroke with Large Diaphragmand Diaphragm SizeElectrical Option Standard Equip (standard power cord based on ?input voltage? & amp;junction box based on ?output control? selection)Elastomer Material TFE/PFitting Connection0.5? Hose Barb Inlet, 0.5? Male NPT Outlet, with 0.5? Male NPT Injection FittingTypesSeries DataType Diaphragm MeteringMax Feed15 gph (55 lph)Max Pressure175 psi (12 bar)Max Temperature130° F (54° C)Max Ambient14° to 110° (-10° to 43° C)TemperatureDuty Cycle ContinuousMax Viscosity1,000 CentipoiseMax Suction Lift15 ft. Water, 0 psig (4.5 m, 0 bar)Motor Speed0.1% IncrementsAdjustment ResolutionDisplay Backlit LCD, UV ResistantKeypad Positive Action Tactile Switch KeypadEnclosure NEMA 4X (IP66), Polyester Powder Coated AluminumProduct DimensionsWeight24.00 lbWidth358.14 mm, 14.10 inHeight332.74 mm, 13.10 inLength292.10 mm, 11.50 inTechnical DocumentsDocument Title DownloadInstruction Manual Click Here to DownloadTechnical Datasheet Click Here to DownloadParts List290001-17090001-170 - Cover P/H for Diaphragm metering by Blue White1$64.671$106.15 671010-44671010-446 - P/Head Micro C2 PVDF for Diaphragm metering byBlue White1$212.87 690002-27390002-273 - P/Head SM C2 PVDF for Diaphragm metering byBlue White1$212.87 690002-27290002-272 - P/Head LG C2 PVDF for Diaphragm metering byBlue White770001-34970001-349 - Valve .5 M/NPT VIT for Diaphragm metering by2$84.43 Blue White2$84.43 770001-35070001-350 - Valve .5 M/NPT EP for Diaphragm metering by BlueWhite770001-35170001-351 - Valve .5 F/NPT VIT for Diaphragm metering by Blue2$84.43 White2$84.43 770001-35270001-352 - Valve .5 F/NPT EP for Diaphragm metering by BlueWhite2$84.43 770001-34770001-347 - Valve .5 T-BARB VIT for Diaphragm metering byBlue White770001-34870001-348 - Valve .5 T-BARB EP for Diaphragm metering by2$84.43 Blue White2$84.43 770001-37270001-372 - Valve .375 TUBE VIT for Diaphragm metering byBlue White770001-37370001-373 - Valve .375 TUBE EP for Diaphragm metering by2$84.43 Blue White1$116.04 820000-19420000-194 - KIT 4 EA. Valve VIT for Diaphragm metering byBlue White1$116.04 820000-19520000-195 - KIT 4 EA. Valve EP for Diaphragm metering byBlue White972000-55172000-551 - MICRO Diaphragm Kit for Diaphragm metering by1Blue White1972000-29772000-297 - Small Diaphragm Kit for Diaphragm metering byBlue White972000-29672000-296 - Large Diaphragm Kit for Diaphragm metering by1Blue White1$65.61 1190001-17290001-172 - P/Head Large Spacer for Diaphragm metering byBlue White1$35.84 1490002-32690002-326 - UV LCD CVR PLYCRB for Diaphragm metering byBlue White1671010-02771010-027 - J-Box Kit for Diaphragm metering by Blue White1$136.721$73.66 2171000-57571000-575 - Foot Valve .5 T CR VIT for Diaphragm metering byBlue White。

Enzo Life Sciences 特色钙调神经磷酸酶检测试剂盒解决方案

Enzo Life Sciences 特色钙调神经磷酸酶检测试剂盒解决方案

Enzo Life Sciences 特色钙调神经磷酸酶检测试剂盒解决方案Enzo Life Sciences/艾美捷特色监测心肌信号转导的科研用品组合:监测钙动员,筛选磷酸酶活性抑制剂,检测心肌梗死标志物等,以助力您心血管生物标志物的相关科学研究。

那么接下来一起看看钙调神经磷酸酶检测试剂盒——监测心肌信号转导的科研工具组合方案...先说说Enzo Life Sciences/艾美捷钙调神经磷酸酶检测试剂盒的优势,如下:1.钙调磷酸酶,一种参与免疫细胞信号转导的蛋白磷酸酶,是抑制剂的靶点。

2.使用有效且选择性高的钙调神经磷酸酶底物:RII磷酸肽;3.方便的一步法检测;4.适用于高通量细胞分析;5.简单的非放射性检测;6.心肌细胞钙调磷酸酶活性检测的高引用频次的分析。

Enzo Life Sciences/艾美捷钙调神经磷酸酶检测试剂盒,用于测量细胞钙调神经磷酸酶(PP2B)活性的完整比色分析试剂盒。

它采用了一种方便的96孔板格式,带有测量组织/细胞提取物中钙调神经磷酸酶(PP2B)活性所需的所有试剂,加上人类重组钙调神经磷酸酶作为阳性对照。

该试剂盒提供的RII磷酸肽底物是已知的钙调神经磷酸酶最有效和选择性最强的肽。

释放的游离磷酸盐的检测基于经典的孔雀石绿分析。

图:新鲜制备的小鼠脑提取物的磷酸酶活性。

在凝胶过滤前,将提取物在含有蛋白酶抑制剂的裂解缓冲液中按1:1稀释。

凝胶过滤后和磷酸酶测定前,将提取物在裂解缓冲液中按1:25稀释。

将反应在30°C下孵育30分钟。

Enzo Life Sciences/艾美捷钙调神经磷酸酶检测试剂盒储存方式:将除微量滴定板外的所有成分储存在80°C下,以获得最高稳定性。

钙调神经磷酸酶组分SE163-9090须特别小心处理,以保持zui大的酶活性。

在RT水浴中快速解冻,或用手指摩擦解冻,然后立即存放在冰浴中。

剩余未使用的酶应在-80°C下快速重新冷冻。

多乐士工业专用高耐化学清洁地面漆技术参数表说明书

多乐士工业专用高耐化学清洁地面漆技术参数表说明书

DULUX TRADE HI-CHEM EPOXY ENAMELTECHNICAL DATA SHEETVersion 3 – 2019 AUGUSTTHIS ISSUE SUPERSEDES ALL PREVIOUS PUBLICATIONSPRODUCT DESCRIPTIONSemi-gloss epoxy enamel for interior industrial and home use (e.g. garage floors, etc.)PRODUCT USES·Can be applied on walls, floors and suitably primed metal surfaces.FEATURES AND BENEFITS·Good resistance to a wide range of chemicals and most solvents.·Cures to a hard film with good adhesion and abrasion resistance.·Provides an economical alternative to tiling in bathrooms, showers, kitchens, toilets and low cost housing.·Suitable for surfaces that require frequent cleaning with solvents, detergents or alkaline cleaners.·The cured film is non-toxic. When properly applied and cured, the product is completely safe for direct or accidental food contact on floor and wall applications.PRODUCT INFORMATIONAppearance Semi- glossColour White, Light Grey, Dark Grey and Brilliant GreenBinder Type Polyamide cured EpoxyDensity at 23°C Approx. 1.30Solids Content By weight: Approx. 60%By volume: Approx. 44%Packaged Viscosity Viscosity at 23°C: Approx. 70 KUSpreading Rate at 35µm DFT Brush: Approx. 9 m² per litre, depending on surface porosity,profile and application methodRecommended DFT per coat Min. 50µm. Max. 60µm.Recommended WFT per coat Min. 110µm. Max. 140µm(Higher film build will increase resistance)Flash Point25ºCDULUX TRADE HI-CHEM EPOXY ENAMELAPPLICATION INFORMATIONMixing Stir the Base and Curing Agent separately untilhomogeneous with a flat paddle. Then add the Curing Agentto the Base and stirring until homogeneous with a flat paddle Mixing Ratio 4 parts Base to 1 part Curing Agent by volume.Application Surface conditions Surface Temperature between 10 - 35°C. Relative Humiditybetween 10 - 85 % OR 2ºC above dew point minimum. Application methods Dulux Trade Hichem Epoxy Enamel is packaged in twocomponents in the proper proportions which must be mixedtogether until homogenous before use. See MixingAirless Spray: Ready for use after induction period of 30minutes.Air Spray: After mixing, thin 10% by volume and allowinduction period of 30 minutes.Brush: Can be used on small areas where joining is not aproblem e.g. signs, pipes, colour bands, etc.Roller: Short nap roller may be used on tanks and silostaking precautions to pick up the wet edge to avoid “window-paning”.Self-Priming on porous masonry: The product can only beover coated with itself. If a primer is required,Dulux TradeHichem Epoxy Enamel thinned 10% by volume can beutilised as a primer coat.N.B. Mix the paint first, then stir in the thinners.Thinner Dulux Trade Heavy Duty Thinners for spraying tomaximum of 10% of product volume and should only beadded after mixing the Curing Agent with the Base andstirred homogeneous with a flat paddle.Induction Period30 minutes at 25°C (i.e. do not paint immediately aftermixing).Pot Life to gelation Approx. 8 hours at 25°CDrying Time Dry to handle: 24 hours at 25ºC.Recoating Time 6 hours minimum; up to 7 days maximum at 25°C. (Dryingtimes will be extended during cold, wet or humid conditions.)APPLICATION INFORMATIONCleaning of equipment After use, remove as much product as possible, and thenclean immediately with Dulux Trade Heavy Duty Thinners. Substrates Correctly prepared cement plaster, concrete and correctlyprepared and primed mild steel and ironDULUX TRADE HI-CHEM EPOXY ENAMELAPPLICATION INFORMATIONPrecautions:Do not apply during cold (below 10°C) or wet weather.Do not apply directly to bare metal surfaces.Recommended for interior surfaces only, as the film willchalk on exterior exposure.Cure is slow at low temperatures; below 15°C it takes somedays to reach handling and recoating hardness.The pot life is short above 35°C; shield pressure pots andfluid lines from direct sun.Equipment and brushes must be cleaned immediately.Heat resistant to + 120°C (continuous) although someyellowing occurs above 100°C.Not suitable for direct application to powdery or friablesurfaces whether previously painted or not.Coats Required Apply two to three finishing coats to new surfaces to achievea minimum continuous film of 70µm microns to produceclosed film and solid colour.For non-skid pedestrian areas, three full coats will berequired. See “SURFACE PREPARATION”.SURFACE PREPARATIONEnsure that surfaces are sound and free from dust, oil, grease, dirt, and debris. Surfaces must be thoroughly dry - no more than 12% moisture content.NEW SURFACESCement Plaster, Concrete (non-friable)·Freshly rendered concrete should have dried/cured for a minimum of 6 weeks, the moisture content of the concrete should be below 12% before any preparation andpainting is attempted.·It is recommended that fresh plaster should be allowed 1 week drying for every 5mm thickness; and longer in cold or damp weather.·Ensure the entire surface is sound and clean. Remove any plaster spills, and all loose debris from the surface, ensuring an even and clean surface.·Acid etch the surface with a solution of hydrochloric acid to remove laitance, uncured cement, etc. as follows: On steel or power floated concrete (very smooth), use onevolume hydrochloric acid to two volumes water. More than one application may benecessary to achieve a paintable surface. On wood floated concrete (rough), use one volume hydrochloric acid to four volumes water.N.B. Hydrochloric acid is corrosive -please wear protective clothing, gloves, masks and eye goggles against splashes.·Allow the acid solution to react for 15 minutes and then wash away all acid with copious amounts of clean water.·Remove excess water and allow thorough drying–no more than 12% moisture content.DULUX TRADE HI-CHEM EPOXY ENAMELSURFACE PREPARATIONNEW SURFACESFloors Concrete – NON-SKID Pedestrian areas (walkways and passages)·Follow the cleaning and etching instructions under surface preparation, new surfaces, Cement Plaster, Concrete (non-friable)·Coat 1 – Apply and, while it is still wet, sprinkle dry, silica sand over the surface. (The silica sand should be sifted through a 250µm sieve and retained on a 210µm sieve. A practical spreading rate is 500 grams of sand per square meter of painted floor.)·Coat 2 - The following day, sweep off any excess sand and apply a further coat to seal the surface. Allow overnight drying again·Coat 3 – Apply 3rd coat·Observe chemical curing times as stated in this technical data sheet.Mild Steel and Iron·Remove all shop-primer and corrosion products from the steel. Sand blast steel to achieve a bright metal condition, and a cleanliness standard of Sa2½ minimum.·Clean bare steel with a solvent wash (rags dipped in lacquer thinner). Change rags frequently.·Apply one or two coats Dulux Trade Corrocote 1 Metal Etch Primer, depending on the severity of the conditions. Two coats are preferred for coastal conditions. PREVIOUSLY PAINTED SURFACES·The existing coating system should be dry and free of contaminants such as oil, grease and loose paint.·Test that the surface will accept epoxy by allowing a cloth soaked with Dulux Trade Heavy Duty Thinners to rest on it for 15 minutes - it must not lift or wrinkle. If lifting or wrinkling occurs, the paint must be removed with paint stripper or any other suitable means.·Abrade damaged or failed areas back to a sound substrate and treat as new.·Aged or weathered epoxies or urethanes must be well sanded to a matt finish to providea profile for adhesion.DULUX TRADE HI-CHEM EPOXY ENAMELHEALTH AND SAFETY INFORMATIONSolvent based paints are flammable.This product contains no added lead. Avoid contact with skin or eyes. Keep out of reach of children. If accidently swallowed, seek medical advice immediately and show this container to the doctor. Dry sanding, flame cutting and/or welding of the dry paint film will give rise to dust and/or hazardous fumes. Wet sanding should be used wherever possible.If exposure cannot be avoided by the provision of local exhaust ventilation, suitable respiratory protective equipment should be used. Do not empty into drains or watercourses. Ensure good ventilation during application and drying. It is recommended to use suitable protective clothing and equipment. To avoid the risk of spillage, always store and transport containers in a secure upright position. Refer to Material Safety Data Sheet for complete information.ADDITIONAL INFORMATIONPackaging 5 Litre (4L base in large tin, 1L curing agent).Storage Conditions Store under cool dry conditions away from direct sunlight,heat and extreme cold.Disclaimers Colour references are as accurate as modern printing willallow. Please refer to colour cards for an accuraterepresentation of the colour.Among others, the following factors may affect final colourappearance: product sheen and texture, colour and lightreflections, application, surface texture and preparation.For best colour and sheen consistency, it is advisable to usecontainers of the same batch number, to mix differentbatches together in a large container, or to finish in a cornerbefore starting a new container.TDS STANDARD DISCLAIMERThe recommendations contained herein are given in good faith and meant to guide the specifier or user in accordance with good painting practices. They are gained from our tests and experiences and are believed to be accurate and reliable. No warranty/guarantee is implied by the recommendations contained herein since the conditions of use; application method, substrate and cleanliness of the substrate are beyond Dulux control.Important Note; Technology may change with time, necessitating changes to this Technical Data Sheet (TDS).It is the responsibility of the user to ensure that the latest TDS is being used for reference. Dulux Technical Data Sheets are available on our website www.duluxtrade.co.za or please contact: Dulux On-Line on 0860 330 111. Email*************************ICI Dulux (Pty) Ltd is part of AkzoNobel. ICI Dulux (Pty) Ltd Reg No.1946/020769/07。

美国药典(USP)规定的色谱柱编号对应表

美国药典(USP)规定的色谱柱编号对应表
L29
氧化铝,反相键合,含碳量低,氧化铝基聚丁二稀小球,5μm,孔径80Å
L30
全多孔硅胶键合乙基硅烷固定相
L31
季胺基改性孔径2000Å的交联苯乙烯和二乙烯基苯(55%)强阴离子交换树脂
L32
L-脯氨酸铜配合物共价键合于不规则形硅胶微粒的配位体的交换手性色谱填料
L33
能够分离分子量4000~40000范围蛋白质分子的球形硅胶固定相, pH稳定性好
L25
聚甲基丙烯酸酯树脂交联羟基醚(表面含有残余羧基功能团)树脂。能分离分子量100~5000范围的水溶性中性、阳离子型及阴离子型聚合物(用聚氧乙烯测定)的固定相
L26
丁基硅烷化学键合全多孔硅胶微球固定相
L27
30~50μm的全多孔硅胶微粒
L28
多功能载体,100Å的高纯硅胶加以氨基键合以及C8反相键合的官能团
L19
钙型磺化交联苯乙烯-二乙烯基苯共聚物,强阳离子交换柱
L20
二羟基丙烷基化学键合多孔硅胶微球固定相(Diol)
二醇基柱
L21
刚性苯乙烯-二乙烯基苯共聚物微球填料柱
L22
带有磺酸基团的多孔苯乙烯阳离子交换柱
L23
带有季胺基团的聚甲基丙烯酸甲酯或聚丙烯酸酯多孔离子交换柱
L24
表面含有大量羟基的半刚性聚乙烯醇亲水凝胶柱
L45
β-环糊精键合多孔硅胶微球
L46
季胺基改性苯乙烯-二乙烯基苯聚合物微球
美国药典(USP)规定的色谱柱编号对应表
USP编号
填料/说明
简称
L1
十八烷基键合多孔硅胶或无机氧化物微粒固定相
ODS柱
L2
30~50μm表面多孔薄壳型键合十八烷基固定相

哈希公司水质监测仪器说明书

哈希公司水质监测仪器说明书

哈希公司成立于1947年,现为美国丹纳赫集团一级子公司,总部设在美国科罗拉多州的拉夫兰市,是设计和制造水质、水文监测仪器的专业厂家。

工厂分别分布于美国、瑞士、德国、法国和英国。

作为水质、水文监测仪器的世界领导者,哈希公司产品被全球用户广泛应用于饮用水、地下水、地表水、市政污水、工业污水、半导体超纯水、制药/电力及其他工业净水、等领域,其全线产品系列涵盖实验室定性/定量分析、现场分析、流动分析测试、在线分析测试。

产品具有测量精确、运行可靠、操作简单、低维护量,结构紧凑等特点。

哈希公司一直致力于使水质分析过程更方便、更迅捷、更可靠:各类包装的即开即用型化学试剂包,不仅为精确的化学分析提供了可靠的质量保障,也为用户节约了宝贵的时间和人力资源,成为了中国环境现场应急监测的首选工具;各种类型的在线水质分析仪器,以其准确度高、维护量小、可测量的水质参数多等特点,可以满足污水处理厂、饮用水厂、工业过程水处理、工业污染源、水质自动监测站等不同场合的应用。

哈希公司的水质分析仪器产品在中国已经有超过20年的成功应用, 哈希在线水质分析仪器在中国水处理市场以及全球范围内都得到了广泛的应用,一直以来哈希在线浊度分析仪都是饮用水行业关键性运行指标-浊度测试的常用仪器。

我们的目标是继续为广大用户提供可靠的仪器、测试方法、简单的操作步骤和优质的客户服务,不断地提高产品的质量以满足客户需求不断变化的需要。

目前公司已经在北京、上海、广州和重庆、沈阳、西安、武汉、济南、南京、福州设立了办事处,为中国的广大客户提供方便、周到的服务。

目录水位监测 (2)流量监测 (12)雨量监测 (29)气象监测 (31)水质监测 (33)典型应用 (60)基本介绍用于连续测量水位的精巧型气泡水位计。

它具有高量程、高精度的特点,并带有4-20 mA 模拟输出和SDI12标准接口,最新设计的智能型气泵可以在满足测量精度的前提下减小打气体积,以便节省系统功耗。

AZD7545_SDS_MedChemExpress

AZD7545_SDS_MedChemExpress

Inhibitors, Agonists, Screening LibrariesSafety Data Sheet Revision Date:May-24-2017Print Date:May-24-20171. PRODUCT AND COMPANY IDENTIFICATION1.1 Product identifierProduct name :AZD7545Catalog No. :HY-16082CAS No. :252017-04-21.2 Relevant identified uses of the substance or mixture and uses advised againstIdentified uses :Laboratory chemicals, manufacture of substances.1.3 Details of the supplier of the safety data sheetCompany:MedChemExpress USATel:609-228-6898Fax:609-228-5909E-mail:sales@1.4 Emergency telephone numberEmergency Phone #:609-228-68982. HAZARDS IDENTIFICATION2.1 Classification of the substance or mixtureGHS Classification in accordance with 29 CFR 1910 (OSHA HCS)Acute toxicity, Oral (Category 4),H302Acute aquatic toxicity (Category 1),H400Chronic aquatic toxicity (Category 1),H4102.2 GHS Label elements, including precautionary statementsPictogramSignal word WarningHazard statement(s)H302 Harmful if swallowed.H410 Very toxic to aquatic life with long lasting effects.Precautionary statement(s)P264 Wash skin thoroughly after handling.P270 Do not eat, drink or smoke when using this product.P273 Avoid release to the environment.P301 + P312 IF SWALLOWED: Call a POISON CENTER or doctor/ physician if you feel unwell.P330 Rinse mouth.P391 Collect spillage.P501 Dispose of contents/ container to an approved waste disposal plant.2.3 Other hazardsNone.3. COMPOSITION/INFORMATION ON INGREDIENTS3.1 SubstancesSynonyms:AZD 7545; AZD⁻7545Formula:C19H18ClF3N2O5SMolecular Weight:478.87CAS No. :252017-04-24. FIRST AID MEASURES4.1 Description of first aid measuresEye contactRemove any contact lenses, locate eye-wash station, and flush eyes immediately with large amounts of water. Separate eyelids with fingers to ensure adequate flushing. Promptly call a physician.Skin contactRinse skin thoroughly with large amounts of water. Remove contaminated clothing and shoes and call a physician.InhalationImmediately relocate self or casualty to fresh air. If breathing is difficult, give cardiopulmonary resuscitation (CPR). Avoid mouth-to-mouth resuscitation.IngestionWash out mouth with water; Do NOT induce vomiting; call a physician.4.2 Most important symptoms and effects, both acute and delayedThe most important known symptoms and effects are described in the labelling (see section 2.2).4.3 Indication of any immediate medical attention and special treatment neededTreat symptomatically.5. FIRE FIGHTING MEASURES5.1 Extinguishing mediaSuitable extinguishing mediaUse water spray, dry chemical, foam, and carbon dioxide fire extinguisher.5.2 Special hazards arising from the substance or mixtureDuring combustion, may emit irritant fumes.5.3 Advice for firefightersWear self-contained breathing apparatus and protective clothing.6. ACCIDENTAL RELEASE MEASURES6.1 Personal precautions, protective equipment and emergency proceduresUse full personal protective equipment. Avoid breathing vapors, mist, dust or gas. Ensure adequate ventilation. Evacuate personnel to safe areas.Refer to protective measures listed in sections 8.6.2 Environmental precautionsTry to prevent further leakage or spillage. Keep the product away from drains or water courses.6.3 Methods and materials for containment and cleaning upAbsorb solutions with finely-powdered liquid-binding material (diatomite, universal binders); Decontaminate surfaces and equipment by scrubbing with alcohol; Dispose of contaminated material according to Section 13.7. HANDLING AND STORAGE7.1 Precautions for safe handlingAvoid inhalation, contact with eyes and skin. Avoid dust and aerosol formation. Use only in areas with appropriate exhaust ventilation.7.2 Conditions for safe storage, including any incompatibilitiesKeep container tightly sealed in cool, well-ventilated area. Keep away from direct sunlight and sources of ignition.Recommended storage temperature:Powder-20°C 3 years4°C 2 yearsIn solvent-80°C 6 months-20°C 1 monthShipping at room temperature if less than 2 weeks.7.3 Specific end use(s)No data available.8. EXPOSURE CONTROLS/PERSONAL PROTECTION8.1 Control parametersComponents with workplace control parametersThis product contains no substances with occupational exposure limit values.8.2 Exposure controlsEngineering controlsEnsure adequate ventilation. Provide accessible safety shower and eye wash station.Personal protective equipmentEye protection Safety goggles with side-shields.Hand protection Protective gloves.Skin and body protection Impervious clothing.Respiratory protection Suitable respirator.Environmental exposure controls Keep the product away from drains, water courses or the soil. Cleanspillages in a safe way as soon as possible.9. PHYSICAL AND CHEMICAL PROPERTIES9.1 Information on basic physical and chemical propertiesAppearance White to off-white (Solid)Odor No data availableOdor threshold No data availablepH No data availableMelting/freezing point No data availableBoiling point/range No data availableFlash point No data availableEvaporation rate No data availableFlammability (solid, gas)No data availableUpper/lower flammability or explosive limits No data availableVapor pressure No data availableVapor density No data availableRelative density No data availableWater Solubility No data availablePartition coefficient No data availableAuto-ignition temperature No data availableDecomposition temperature No data availableViscosity No data availableExplosive properties No data availableOxidizing properties No data available9.2 Other safety informationNo data available.10. STABILITY AND REACTIVITY10.1 ReactivityNo data available.10.2 Chemical stabilityStable under recommended storage conditions.10.3 Possibility of hazardous reactionsNo data available.10.4 Conditions to avoidNo data available.10.5 Incompatible materialsStrong acids/alkalis, strong oxidising/reducing agents.10.6 Hazardous decomposition productsUnder fire conditions, may decompose and emit toxic fumes.Other decomposition products - no data available.11.TOXICOLOGICAL INFORMATION11.1 Information on toxicological effectsAcute toxicityClassified based on available data. For more details, see section 2Skin corrosion/irritationClassified based on available data. For more details, see section 2Serious eye damage/irritationClassified based on available data. For more details, see section 2Respiratory or skin sensitizationClassified based on available data. For more details, see section 2Germ cell mutagenicityClassified based on available data. For more details, see section 2CarcinogenicityIARC: No component of this product present at a level equal to or greater than 0.1% is identified as probable, possible or confirmed human carcinogen by IARC.ACGIH: No component of this product present at a level equal to or greater than 0.1% is identified as a potential or confirmed carcinogen by ACGIH.NTP: No component of this product present at a level equal to or greater than 0.1% is identified as a anticipated or confirmed carcinogen by NTP.OSHA: No component of this product present at a level equal to or greater than 0.1% is identified as a potential or confirmed carcinogen by OSHA.Reproductive toxicityClassified based on available data. For more details, see section 2Specific target organ toxicity - single exposureClassified based on available data. For more details, see section 2Specific target organ toxicity - repeated exposureClassified based on available data. For more details, see section 2Aspiration hazardClassified based on available data. For more details, see section 212. ECOLOGICAL INFORMATION12.1 ToxicityNo data available.12.2 Persistence and degradabilityNo data available.12.3 Bioaccumlative potentialNo data available.12.4 Mobility in soilNo data available.12.5 Results of PBT and vPvB assessmentPBT/vPvB assessment unavailable as chemical safety assessment not required or not conducted.12.6 Other adverse effectsNo data available.13. DISPOSAL CONSIDERATIONS13.1 Waste treatment methodsProductDispose substance in accordance with prevailing country, federal, state and local regulations.Contaminated packagingConduct recycling or disposal in accordance with prevailing country, federal, state and local regulations.14. TRANSPORT INFORMATIONDOT (US)This substance is considered to be non-hazardous for transport.IMDGUN number: 3077Class: 9Packing group: IIIEMS-No: F-A, S-FProper shipping name: ENVIRONMENTALLY HAZARDOUS SUBSTANCE, SOLID, N.O.S.Marine pollutant: Marine pollutantIATAUN number: 3077Class: 9Packing group: IIIProper shipping name: Environmentally hazardous substance, solid, n.o.s.15. REGULATORY INFORMATIONSARA 302 Components:No chemicals in this material are subject to the reporting requirements of SARA Title III, Section 302.SARA 313 Components:This material does not contain any chemical components with known CAS numbers that exceed the threshold (De Minimis) reporting levels established by SARA Title III, Section 313.SARA 311/312 Hazards:No SARA Hazards.Massachusetts Right To Know Components:No components are subject to the Massachusetts Right to Know Act.Pennsylvania Right To Know Components:No components are subject to the Pennsylvania Right to Know Act.New Jersey Right To Know Components:No components are subject to the New Jersey Right to Know Act.California Prop. 65 Components:This product does not contain any chemicals known to State of California to cause cancer, birth defects, or anyother reproductive harm.16. OTHER INFORMATIONCopyright 2017 MedChemExpress. The above information is correct to the best of our present knowledge but does not purport to be all inclusive and should be used only as a guide. The product is for research use only and for experienced personnel. It must only be handled by suitably qualified experienced scientists in appropriately equipped and authorized facilities. The burden of safe use of this material rests entirely with the user. MedChemExpress disclaims all liability for any damage resulting from handling or from contact with this product.Caution: Product has not been fully validated for medical applications. For research use only.Tel: 609-228-6898 Fax: 609-228-5909 E-mail: tech@Address: 1 Deer Park Dr, Suite Q, Monmouth Junction, NJ 08852, USA。

锔242标准溶液-概述说明以及解释

锔242标准溶液-概述说明以及解释

锔242标准溶液-概述说明以及解释1.引言1.1 概述锔242标准溶液是一种用于化学分析和实验中的重要试剂。

它是一种制备精确浓度锔242溶液的标准方法,可以用于校准和检验实验室中其他锔242溶液的浓度。

锔242是锔系元素中最稳定的同位素之一,具有广泛的应用前景。

由于其较长的半衰期和较低的放射性,锔242被广泛应用于医学、环境监测、工业和科学研究领域。

锔242标准溶液的制备方法是通过精确称量锔242化合物,并在适当的溶剂中溶解得到稀溶液。

为了确保溶液中锔242的浓度准确,制备过程需要严格的操作和精确的计量。

在制备过程中,还需要注意溶液的保存条件和使用期限,以确保其浓度不变。

锔242标准溶液在实验中具有重要的应用价值。

首先,它可以用作校准其他锔242溶液的浓度。

在化学分析中,准确的溶液浓度是确保实验结果准确和可靠的重要因素之一。

通过使用锔242标准溶液进行校准,可以提高实验结果的精确度。

其次,锔242标准溶液还可以用于辐射剂量监测和核能源行业中的安全性评估。

锔242的放射性特性使其成为测量和监测辐射剂量的理想选择。

通过使用锔242标准溶液,可以准确测量和控制核能源设施中的辐射剂量,确保工作人员和公众的安全。

此外,锔242标准溶液还可以应用于环境监测领域。

锔242的特殊性质使其成为一种用于地下水和土壤中放射性元素监测的重要工具。

通过分析锔242标准溶液和环境样品中锔242的含量,可以评估和监测环境中的放射性污染程度,为环境保护和管理提供重要依据。

综上所述,锔242标准溶液在化学分析和实验中具有重要的地位和广泛的应用前景。

通过制备准确的锔242标准溶液,可以提高实验结果的准确性和可靠性,同时也可以用于辐射剂量监测和环境保护等领域。

因此,对锔242标准溶液的研究和应用具有重要意义。

1.2 文章结构文章结构分为引言、正文和结论三个部分。

引言部分概述了文章的主题,介绍了锔242标准溶液的背景和相关情况。

接下来,文章的正文部分会详细探讨锔242标准溶液的定义和特点,以及制备方法。

聚丙烯注射剂瓶质量标准

聚丙烯注射剂瓶质量标准

聚丙烯注射剂瓶质量标准本标准适用于盛装注射剂(包括水针、粉针和冻干粉针)等制剂由聚丙烯材料制成的药瓶。

【外观】取聚丙烯注射剂瓶适量,在自然光线明亮处目测,应透明、光洁、内外应无肉眼可见的异物。

【鉴别】(1)红外光谱取样品适量敷于微热的溴化钾晶片上,照分光光度法(中华人民共和国药典2010年版二部附录ⅣC)测定,应与对照图谱基本一致。

(2)密度取聚丙烯注射剂瓶2g,加水100ml,回流2小时,放冷,80℃干燥2小时后,精密称定(wa )。

再置适宜的溶剂(密度为d)中,精密称定(ws)。

按公式计算:Wa--------- × dWa - Ws聚丙烯密度应为0.890-0.908g/cm3。

【灭菌适应性试验】取聚丙烯注射剂瓶数个倒立,先用纯化水内外冲洗三次,再用注射用水内外冲洗三次,压缩空气吹干后用经0.45um孔径滤膜过滤的注射用水进行灌装并封口(封口内盖需用同法清洗干净)。

采用湿热灭菌法灭菌后(标准灭菌F0≥8,如湿热灭菌121℃15分钟),进行以下实验:温度适应性取聚丙烯注射剂瓶数个,于﹣25℃±2℃下,放置24小时,然后在50℃±2℃条件下,继续放置24小时,再在23℃±2℃,将本品置两平行板之间,承受67KPa的内压,维持10分钟。

应无液体漏出。

抗跌落取聚丙烯注射剂瓶数个,于-25℃±2℃,放置24小时,然后在50℃±2℃条件下,继续放置24小时,再在23℃±2℃,按3米跌落高度,跌落至水平硬质刚性的光滑表面上,不得有破裂和泄露。

透明度取聚丙烯注射剂瓶数个,另取空聚丙烯注射剂瓶1个装入级号为4级的浊度标准作为对照液,在黑色背景下,用白炽灯以2000lx~3000lx照射(避免照射实验人员的眼睛),观察,应能与对照液区分。

不溶性微粒取聚丙烯注射剂瓶数个,照不溶性微粒检查法规定(中华人民共和国药典2000年版二部附录Ⅸc),粒子直径≥5μm粒子数,不得过100(个/ml);粒子直径≥10μm粒子数,不得过10(个/ ml);粒子直径≥25μm粒子数,不得过1(个/ml)。

常用有机试剂缩写

常用有机试剂缩写

%de % diasteromeric excess 非对映体过量百分比(不对称合成术语)%ee % enantiomeric excess 对映体过量百分比(不对称合成术语)1,5-HD 1,5-hexadienyl 1,5-己二烯9-BBN 9-borabicyclononane 9-硼二环壬烷Ac Acetyl 乙酰基acac Acetylacetonate 乙酰丙酮基AIBN Azo-bis-isobutryonitrile 2,2'-二偶氮异丁腈aq. Aqueous 水溶液BINAP (2R,3S)-2,2’-bis (diphenylphosphino)-1,1’-binaphthyl (2R,3S)-2.2'-二苯膦-1.1'-联萘亦简称为联二萘磷BINAP是日本名古屋大学的Noyori(2001年诺贝尔奖)发展的一类不对称合成催化剂Bn Benzyl 苄基BOC t-butoxycarbonyl 叔丁氧羰基(常用于氨基酸氨基的保护)Bpy (Bipy) 2,2’-bipyridyl 2,2'-联吡啶Bu n-butyl 正丁基Bz Benzoyl 苯甲酰基c- Cyclo 环-CAN Ceric ammonium nitrate 硝酸铈铵<BR< p>Cat. Catalytic 催化CBz Carbobenzyloxy 苄氧羰基COT 1,3,5-cyclooctatrienyl 1,3,5-环辛四烯Cp Cyclopentadienyl 环戊二烯基CSA 10-camphorsulfonic acid 樟脑磺酸CTAB Cetyltrimethylammonium bromide 十六烷基三甲基溴化铵(相转移催化剂)Cy Cyclohexyl 环己基dba Dibenzylidene acetone 苄叉丙酮DBE 1,2-dibromoethane 1,2-二溴乙烷DBN 1,8-diazabicycloundec-7-ene 二环-1,8-二氮-7-壬烯DBU 1,5-diazabicyclonon-5-ene 二环-1,5-二氮-5-十一烯DCC 1,3-dicyclohexylcarbodiimide 1,3-二环己基碳化二亚胺DCE 1,2-dichloroethane 1,2-二氯乙烷DDQ 2,3-dichloro-5,6-dicyano-1,4-benzoquinone 2,3-二氯-5,6-二氰-1,4-苯醌DEA Diethylamine 二乙胺DEAD Diethyl azodicarboxylate 偶氮二甲酸二乙酯Dibal-H Diisobutylaluminum hydride 二异丁基氢化铝diphos (dppe) 1,2-bis (diphenylphosphino)ethane 1,2-双(二苯基膦)乙烷diphos-4 (dppb) 1,4-bis (diphenylphosphino)butane 1,2-双(二苯基膦)丁烷DMAP 4-dimethylaminopyridine 4-二甲氨基吡啶DME dimethoxyethane 二甲醚DMF N,N'-dimethylformamide 二甲基甲酰胺dppf bis (diphenylphosphino)ferrocene 双(二苯基膦基)二茂铁dppp 1,3-bis (diphenylphosphino)propane 1,3-双(二苯基膦基)丙烷dvb Divinylbenzene 二乙烯苯e- Electrolysis 电解EDA (en) ethylenediamine 乙二胺<BR< p>EDTA Ethylenediaminetetraacetic acid 乙二胺四乙酸二钠EE 1-ethoxyethyl 乙氧基乙基Et Ethyl 乙基FMN Flavin mononucleotide 黄素单核苷酸Fp flash point 闪点FVP Flash vacuum pyrolysis 闪式真实热解法h hours 小时HMPA Hexamethylphosphoramide 六甲基磷酸三胺HMPT Hexamethylphosphorus triamide 六甲基磷酰胺hv Irradiation with light 光照iPr isopropyl 异丙基LAH Lithium aluminum hydride 氢化铝锂(LiAlH4)LDA Lithium diisopropylamide 二异丙基氨基锂(有机中最重要一种大体积强碱)LHMDS Lithium hexamethyldisilazideLTBA Lithium tri-tert-butoxyaluminum hydridemCPBA meta-cholorperoxybenzoic acid 间氯过苯酸Me Methyl 甲基MEM b-methoxyethoxymethyl 甲氧基乙氧基甲基-<BR< p>Min Minute 分钟MOM methoxymethyl 甲氧甲基Ms Methanesulfonyl 甲基磺酰基(保护羟基用)MS Molecular sieves (3 or 4 ) 分子筛MTM Methylthiomethyl 二甲硫醚Naphth Naphthyl 萘基NBD Norbornadiene 二环庚二烯(别名:降冰片二烯)NBS N-Bromosuccinimide N-溴代丁二酰亚胺别名:N-溴代琥珀酰亚胺NCS N-chlorosuccinimide N-氯代丁二酰亚胺. 别名:N-氯代琥珀酰亚胺Ni(R) Raney Nickel 雷尼镍(氢活性催化还原剂)NMO N-methyl morpholine-n-oxide N-甲基氧化吗啉PCC Pyridinium chlorochromate 吡啶氯铬酸盐PDC Pyridinium dichromate 是什么东西?PEG Polyethylene glycol 聚乙二醇Ph Phenyl 苯基PhH Benzene 苯PhMe Toluene 甲苯(亦称toluol;methylbenzene)Phth Phthaloyl 邻苯二甲酰Pip Piperidyl 哌啶基Py Pyridine 吡啶<BR< p>quant. quantitative yield 定量产率(对否?)Red-Al Na 直接看分子式就是了sBu sec-butyl 仲丁基sBuLi sec-butyllithium 仲丁基锂Siamyl DiisoamylTASF Tris(diethylamino)sulfonium difluorotrimethyl silicateTBAF Tetrabutylammonium fluoride 氟化四丁基铵TBDMS, TBS t-butyldimethylsilyl 叔丁基二甲基硅烷基(羟基保护基)TBHP t-butylhydroperoxide 过氧叔丁醇<BR< p>t-Bu Tert-butyl 叔丁基TEBA Triethylbenzylammonium 三乙基苄基胺TEMPO Tetramethylpiperdinyloxy free radicalTf or OTf TriflateTFA Trifluoroacetic acid 三氟乙酸TFAA Trifluoroacetic anhydride 三氟乙酸酐THF Tetrahydrofuran 四氢呋喃THP Tetrahydropyranyl 四氢吡喃基TMEDA Tetramethylethylenediamine 四甲基乙二胺TMP 2,2,6,6-tetramethylpiperidine 2,2,6,6-四甲基哌啶TMS Trimethylsilyl 三甲基硅烷基Tol Tolyl 甲苯基Tr Trityl 三苯基TRIS TriisopropylphenylsulfonylTs (Tos) Tosyl (p-toluenesulfonyl) 对甲苯磺酰基。

2-乙烯吡啶化工标准

2-乙烯吡啶化工标准

2-乙烯吡啶化工标准乙烯吡啶(2-vinylpyridine,2-VP)是一种重要的化工原料,它具有良好的亲水性、聚合性、交联性和电子亲和性,广泛应用于高分子材料、药物、农药、染料、催化剂等领域。

为了确保乙烯吡啶产品的质量,需要建立相应的化工标准。

1.产品名称本标准所称乙烯吡啶是指化学名称为2-乙烯基吡啶,分子式为C7H7N,相对分子质量为105.14的无色液体。

2.质量指标项目记号标准值外观—透明液体相对密度 d20 1.010-1.015含量(GC) % ≥99.0水分% ≤0.2酸值(按HCL计)mg/g ≤0.13.质量控制3.1 原辅材料采购采购的原辅材料必须符合国家相关标准或合同规定,严禁使用“三废”物料。

3.2 生产管理生产过程中应建立相应的质量管理体系,确保产品的稳定质量。

3.3 检测方法含量:采用气相色谱法(GC);水分:测定仪法;酸值:采用酸碱滴定法;重铁:采用原子吸收光谱法(AAS)。

4.包装、运输和贮存4.1 包装产品应采用不易破损、不与产品反应、不污染产品的包装材料进行包装。

4.2 运输产品应在运输过程中避免受到阳光直射、雨淋、高温、震动等因素的影响,避免碰撞、损坏。

4.3 贮存产品应在干燥、通风、阴凉的地方存放,远离热源、火源、酸、碱、氧化剂等物质,避免与有毒有害物质接触,不得与食品和饲料放在一起。

5.安全、环保措施5.1 生产过程中应建立安全管理体系,确保人身安全和生产设备的安全运行。

5.2 产品包装、运输和贮存过程中应严格遵守相关的安全规定,避免发生泄漏、火灾等事故。

5.3 废弃物和废水应按照国家环保法规进行处理,严禁乱倒乱排,保护环境。

6.质量标准评定6.1 检测结果符合质量指标的产品,视为合格品。

6.2 检测结果不符合质量指标的产品,应视为不合格品,重新进行调整或者按照标准规定进行处理。

针对不符合质量指标的产品,生产企业应进行调查和分析,采取有效措施解决问题,避免同类问题再次发生。

地毯、地毯衬垫以及地毯胶粘剂中4-苯基环己烯释放量原始记录模板

地毯、地毯衬垫以及地毯胶粘剂中4-苯基环己烯释放量原始记录模板
检测室温度
250℃
柱温度(℃)
35-150℃,25min(8℃/min)
载气(mL/min)
N2
燃气(mL/min)
H2
助燃气(mL/min)
空气
样品处理
分流进样
二氯甲烷恒温
80℃
尾吹
30mL/min
定量方法
面积外标法
数据处理
色谱工作站
校正uV.s)
计算结果Csi(mg/m3)
备注
N——舱空气交换率h-1(N=1)
L——材料/舱负荷比m2/ m3(L=0.4)
检测:审核:
共页第页
样品中TVOC释放量EF (mg/m2.h)
计算公式
EF= (N/L)
Csi—标准状态下所采空气样品中i组分的浓度,单位为毫克每立方米(mg/m3);
Ci—所采空气样品中i组分的浓度,单位为毫克每立方米(mg/m3);
t—采样时采样点的温度,单位为摄氏度(℃);
P—采样时采样点的大气压力,单位为千帕(kPa);
地毯、地毯衬垫以及地毯胶粘剂
4-苯基环己烯原始记录
任务单编号:
样品名称
样品编号
检测依据
GB18587-2001《室内装饰装修材料地毯、地毯衬垫以及地毯胶粘剂有害物质释放量》
送样日期
20年月日
样品状态
仪器名称
气相色谱仪
编号
大气采样器
采样条件
检测日期




汽化室温度
200℃
内径0.53(mm)
二甲基聚硅氧烷毛细管柱

西咪替丁杂质全套列表

西咪替丁杂质全套列表

中文名
CAS号
用途
结构式
西咪替丁杂质1(西咪替丁EP 杂质A)
52378-40-2
新药研发申报注册/ 鉴别、检查、含量测定
等 181+7164+1670
西咪替丁杂质2(西咪替丁EP 杂质B)来自138035-55-9
新药研发申报注册/ 鉴别、检查、含量测定

西咪替丁杂质3(西咪替丁EP 杂质C)
52568-80-6
西咪替丁杂质列表
【怕发补,找扬信】 【怕发补,就用STD标准物质】
规格:10mg-25mg-50mg-100mg-200mg 随货提供氢谱、质谱、液相、COA,也可以提供CNMR、IR、UV、二维谱、水分、含量图谱等资料
杂质会实时更新,如列表没有您需要的产品可随时联系我 扬信医药小周 Q&VX3003379697
新药研发申报注册/ 鉴别、检查、含量测定

西咪替丁杂质7(西咪替丁EP 杂质G)
31857-31-5
新药研发申报注册/ 鉴别、检查、含量测定

西咪替丁杂质8(西咪替丁EP 杂质H)
74886-59-2
新药研发申报注册/ 鉴别、检查、含量测定

新药研发申报注册/ 鉴别、检查、含量测定

西咪替丁杂质4(西咪替丁EP 杂质D)
59660-24-1
新药研发申报注册/ 鉴别、检查、含量测定

西咪替丁杂质5(西咪替丁EP 杂质E)
54237-72-8
新药研发申报注册/ 鉴别、检查、含量测定

西咪替丁杂质6(西咪替丁EP 杂质F)
55272-86-1
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