Hoechst-S-769121-LCMS-15170-MedChemExpress

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Diva Decloaker 10X Pretreatment Reagent 说明书

Diva Decloaker 10X Pretreatment Reagent 说明书

Intended Use:For In Vitro Diagnostic UseHeat induced antigen retrieval of formalin-fixed paraffin-embedded (FFPE) tissues for immunohistochemistry (IHC) procedures. The clinical interpretation of any staining or its absence should be complimented by morphological studies using proper controls and should be evaluated within the context of the patient's clinical history and other diagnostic tests by a qualified pathologist.Summary & Explanation:Diva Decloaker is a heat retrieval solution that is compatible with virtually all antibodies and eliminates the need for multiple buffers including citrate buffer, EDTA or high pH tris buffers. Antibody titers are doubled and tripled when compared to citrate buffer, pH 6.0. Diva Decloaker incorporates Assure™ tech nology, a color-coded high temperatures pH indicator solution. The end-user is assured by visual inspection that the solution is at the correct dilution and pH. This product is specially formulated for superior pH stability at high temperatures and will help prevent the possibility of losing pH sensitive antigens. Diva Decloaker is non-toxic, non-flammable, odorless and sodium azide and thimerosal free.Known Applications:Immunohistochemistry (formalin-fixed paraffin-embedded tissues) Supplied As:100mlDiva Decloaker, 10X concentrate (DV2004LX)500mlDiva Decloaker, 10X concentrate (DV2004MX)Materials and Reagents (Needed But Not Provided): Microscope slides, positively chargedDesert Chamber* (Drying oven)Positive and negative tissue controlsXylene (Could be substituted with xylene substitute*)Ethanol or reagent alcoholDecloaking Chamber* (Pressure cooker)Deionized or distilled waterWash buffer*(TBS/PBS)Enzyme digestion*Avidin-Biotin Blocking Kit*(Labeled Streptavidin Kits Only) Peroxidase block*Protein block*Primary antibody*Negative control reagents*Detection kits*Detection components*Chromogens*Hematoxylin*Bluing reagent*Mounting medium** Biocare Medical Products: Refer to a Biocare Medical catalog for further information regarding catalog number and ordering information. Certain reagents listed above are based on specific application and detection system used. Storage and Stability:Store at room temperature. Do not use after expiration date printed on vial. If reagents are stored under conditions other than those specified in the package insert, they must be verified by the user. Diluted reagents should be used promptly; any remaining reagent should be stored at room temperature.Protocol Recommendations:1. Deparaffinize tissues and hydrate to water. If necessary, block for endogenous peroxidase and wash in DI water.2. Dilute concentrated Diva Decloaker at a ratio of 1:10 (1 ml Diva to 9 ml of deionized water).3. Place slides into 1X retrieval solution in a slide container (e.g. Coplin Jar, Tissue -Tek™ staining dish or metal slide canister).4. Retrieve sections under pressure using Biocare's Decloaking Chamber. Follow the recommendations on the antibody data sheet and Decloaking Chamber User Manual.5. Check solution for appropriate color change. (See Technical Note #1)6. Gently rinse by gradually adding DI water to the solution, then remove slides and rinse with DI water.Technical Notes:1. Concentrated Diva Decloaker is a bright yellow color. RTU or 1X solution is a pale yellow color. When the solution reaches 80-125°C, the solution turns yellow and indicates that the high temperature solution is at correct pH. Should the pH rise above 7.0, the solution turns a fuschia red color. Should the pH drop too low, thesolution turns a pink color.2. If using Biocare’s Desert Chamber Pro (a programmable turbo-action drying oven), dry sections at 25ºC overnight or at 37ºC for 30-60 minutes and then dry slides at 60ºC for 30 minutes.3. Use positive char ged slides (use Biocare’s Kling-On HIER Slides) and cut tissues at 4-5 microns. Do not use any adhesives in the water bath. Poor fixation and processing of tissues will cause tissue sections to fall off the slides, especially fatty tissues such as breast. Tissues should be fixed a minimum of 6-12 hours.4. Protocol time and temperatures for HIER can vary depending on the Decloaking Chamber model used. Please refer to the relevant Decloaking Chamber manual for appropriate protocol times and temperatures.Limitations:The protocols for a specific application can vary. These include, but are not limited to: fixation, heat-retrieval method, incubation times, tissue section thickness and detection kit used. Due to the superior sensitivity of these unique reagents, the recommended incubation times and titers listed are not applicable to other detection systems, asresults may vary. The data sheet recommendations and protocols are based on exclusive use of Biocare products. Ultimately, it is the responsibility of the investigator to determine optimal conditions. The clinical interpretation of any positive or negative staining should be evaluated within the context of clinical presentation, morphology and other histopathological criteria by a qualified pathologist. The clinical interpretation of any positive or negative staining should be complemented by morphological studies using proper positive and negative internal and external controls as well as other diagnostic tests.Catalog Number: DV2004 LX, MX Description: 100, 500 ml, concentrateQuality Control:Refer to CLSI Quality Standards for Design and Implementation of Immunohistochemistry Assays; Approved Guideline-Second edition (I/LA28-A2). CLSI Wayne, PA, USA (). 2011 Precautions:1. This product is not classified as hazardous. The preservative used in this reagent is Proclin 300 and the concentration is less than 0.25%. Overexposure to Proclin 300 can cause skin and eye irritation and irritation to mucous membranes and upper respiratory tract. The concentration of Proclin 300 in this product does not meet the OSHA criteria for a hazardous substance. Wear disposable gloves when handling reagents.2. Specimens, before and after fixation, and all materials exposed to them should be handled as if capable of transmitting infection and disposed of with proper precautions. Never pipette reagents by mouth and avoid contacting the skin and mucous membranes with reagents and specimens. If reagents or specimens come in contact with sensitive areas, wash with copious amounts of water.3. Microbial contamination of reagents may result in an increase in nonspecific staining.4. Incubation times or temperatures other than those specified may give erroneous results. The user must validate any such change.5. Do not use reagent after the expiration date printed on the vial.6. The SDS is available upon request and is located at /.7. Consult OSHA, federal, state or local regulations for disposal of any toxic substances. Proclin is a trademark of Rohm and Haas Company, or of its subsidiaries or affiliates.Troubleshooting:Follow the antibody specific protocol recommendations according to data sheet provided. If atypical results occur, contact Biocare's Technical Support at 1-800-542-2002.。

迈瑞铁蛋白检测试剂盒说明书

迈瑞铁蛋白检测试剂盒说明书

Manual ProcedureAutomated procedure on requestTest PrincipleFerric ions (Fe +3) are released from transferring under acidicconditions and reduced to ferrous state (Fe +2) by a strong reducing agent. Ferrous ions then react with Ferrozine to form a coloredcomplex which can be measured photometrically. The intensity of the color produced is proportional to the iron concentration in the sample. Lipemic samples are clarified by the detergent.Transferrin-Fe-complex apotransferrin + Fe 3+Fe 3+ Fe 2+Ferrozine + Fe 2+ colored complexStability and preparation of working reagentBuffer Reagent B-R1: liquid Powder Reagent P-R1: powder. Reagent R2: liquid, ready to useWorking ReagentAdd 10 ml reagent Buffer B-R1 to one vial powder reagent P-R1 andmix gently for 15 minutes before use.Stability: 2 weeks at 20 – 25 °C1 month at2 – 8 °CAll reagents are stable up to expiry date given on label when storedat 2 – 8 °CNote : All reagents should be clear solutions. Don’t use if the reagent is turbid. Specimen Collection and Handling1. Non-hemolyzed serum is the specimen of choice.2. Serum should be separated from blood clot as soon as possible.3. Heparinized plasma could only be used, other anticoagulantsshould not be used.4. Serum iron is reported to be stable for 4 days at 20 – 25°C and7 days at 2 – 8 °C.CalibratorMediCal U Cat. No. 15011Iron STD. Cat. No. 16131Quality controlMeditrol N Cat. No. 15171 Meditrol P Cat. No. 15181Iron (Ferrozine)Colorimetric testPowder liquid reagentsCalculationConc.Iron = ⨯ Conc. Standardμμ g /dlLinearity Up to 1000 μg/dl (179 μmol/L); If result exceeds 1000 μg/dl, repeat test using diluted sample (1+1) with sodium chloride solution (0.9 %) and multiply result by 2.Interference 1. Certain drugs and other substances are known to influencecirculating iron levels. 2. To make tubes, pipettes, etc. iron free, they must be washed with diluted (1+2) hydrochloric or nitric acid followed by several rinsings with iron free deionized or distilled water.Precautions 1. The reagent is toxi c, don’t pipette by mouth, avoid all contacts. 2. Use only disposable plastic containers or iron free tubes andcuvettes. Avoid any contamination by the use of clean laboratory material.Cat. No. 12881 B-R1 1 Buffer 50mlFor 50 testsP-R1 5 powder for 10 mlR2 1 x 10 ml(A S -A SB ) SampleA standardGuanidinium PH=4.5 Ascorbic acidIron ferrozine methodReference rangeReferences1. Garoc A., Clin. Chem. Acta 94, 115 (1979).2. Brivio et coll., La Ricerca Clin. Lab. 18, 523 (1986).3. Young, DS., Effects of Drugs on Clinical Laboratory Tests, fifthedition 2000, AACC Press, Washington, D.C.。

Hoechst-S-769121-SDS-MedChemExpress

Hoechst-S-769121-SDS-MedChemExpress

Inhibitors, Agonists, Screening LibrariesSafety Data Sheet Revision Date:Jan.-23-2019Print Date:Jan.-23-20191. PRODUCT AND COMPANY IDENTIFICATION1.1 Product identifierProduct name :Hoechst S 769121Catalog No. :HY-15619CAS No. :74681-68-81.2 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 mixtureNot a hazardous substance or mixture.2.2 GHS Label elements, including precautionary statementsNot a hazardous substance or mixture.2.3 Other hazardsNone.3. COMPOSITION/INFORMATION ON INGREDIENTS3.1 SubstancesSynonyms:NoneFormula:C25H28Cl3N7O2SMolecular Weight:596.96CAS No. :74681-68-84. 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 Light yellow to green yellow (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.IMDGThis substance is considered to be non-hazardous for transport.IATAThis substance is considered to be non-hazardous for transport.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 2019 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。

易恩化学技术有限公司降钙素基因相关肽片段产品安全技术说明书

易恩化学技术有限公司降钙素基因相关肽片段产品安全技术说明书

化学品安全技术说明书公司地址:上海化学工业区奉贤分区银工路28号E栋楼客服热线:400-133-2688 1 化学品及企业标识1.1 产品标识符化学品俗名或商品名:降钙素基因相关肽片段CAS No.:119911-68-1别名:VAL-THR-HIS-ARG-LEU-ALA-GLY-LEU-LEU-SER-ARG-SER-GLY-GLY-VAL-VAL-LYS-ASN-ASN-PHE-VAL-PRO-THR-ASN-VAL-GLY-SER-LYS-ALA-PHE-NH2;降钙素基因相关肽(8-37);ALA-CYS-ASN-THR-ALA-THR-CYS-VAL-THR-HIS-ARG-LEU-ALA-ASP-PHE-LEU-SER-ARG-SER-GLY-GLY-VAL-GLY-LYS-ASN-ASN-PHE-VAL-PRO-1.2 鉴别的其他方法α-CGRP8-37FBHuman1.3 有关的确定了的物质或混合物的用途和建议不适合的用途仅供科研用途,不作为药物、家庭备用药或其它用途。

2 危险性概述2.1 GHS分类根据全球化学品统一分类和标签制度(GHS)的规定,不是危险物质或混合物。

2.2 GHS 标记要素,包括预防性的陈述2.3 其它危害物-无3 成分/组成信息3.1 物质分子式 - C139H230N44O38分子量 - 3125.59014 急救措施4.1 必要的急救措施描述一般的建议如果吸入如果吸入,请将患者移到新鲜空气处。

如果停止了呼吸,给于人工呼吸。

在皮肤接触的情况下用肥皂和大量的水冲洗。

在眼睛接触的情况下用水冲洗眼睛作为预防措施。

如果误服切勿给失去知觉者从嘴里喂食任何东西。

用水漱口。

4.2 最重要的症状和影响,急性的和滞后的据我们所知,此化学,物理和毒性性质尚未经完整的研究。

4.3 及时的医疗处理和所需的特殊处理的说明和指示无数据资料5 消防措施5.1 灭火介质火灾特征无数据资料灭火方法及灭火剂用水雾,耐醇泡沫,干粉或二氧化碳灭火。

Hoechst 33258染色液使用说明书

Hoechst 33258染色液使用说明书

Hoechst33258染色液(1mg/mL)使用说明货号:C0021规格:1mL×1支/1mL×10支保存:-20℃避光保存,一年有效。

产品简介:Hoechst33258,也称bisBenzimide H33258或HOE33258,是一种可以穿透细胞膜的蓝色荧光染料,对细胞的毒性较低。

Hoechst33258染色常用于细胞凋亡检测,染色后用荧光显微镜观察或流式细胞仪检测。

Hoechst 33258也常用于普通的细胞核染色,或常规的DNA染色。

Hoechst33258的最大激发波长为346nm,最大发射波长为460nm;Hoechst33258和双链DNA结合后,最大激发波长为352nm,最大发射波长为461nm。

本Hoechst33258染色液可直接用于固定细胞或组织的细胞核染色,也可直接用于活细胞或组织的细胞核染色。

使用说明:使用前用生理盐水或PBS将Hoechst33258染色液稀释100倍,即为工作液。

1.对于固定的细胞或组织:a.对于细胞或组织样品,固定后,适当洗涤去除固定剂。

随后如果需要进行免疫荧光染色,则先进行免疫荧光染色,染色完毕后再按后续步骤进行Hoechst33258染色。

如果不需要进行其它染色,则直接进行后续的Hoechst 33258染色。

b.对于贴壁细胞或组织切片,加入少量Hoechst33258工作液,覆盖住样品即可;对于悬浮细胞,至少加入待染色样品3倍体积的工作液,混匀。

室温放置3-5分钟。

c.吸除Hoechst33258染色液,用TBST、PBS或生理盐水洗涤2-3次,每次3-5分钟。

d.直接在荧光显微镜下观察或封片后荧光显微镜下观察。

细胞发生凋亡时,会看到凋亡细胞的细胞核呈致密浓染,或呈碎块状致密浓染。

2.对于活细胞或组织:a.加入适当量Hoechst33258工作液,必须充分覆盖住待染色的样品,通常对于六孔板一个孔需加入1mL 工作液,对于96孔板一个孔需加入100μL工作液。

谷胱甘肽过氧化物酶(GSH-Px)试剂盒说明书

谷胱甘肽过氧化物酶(GSH-Px)试剂盒说明书

谷胱甘肽过氧化物酶(GSH-Px)试剂盒说明书微量法100T/96S注意:正式测定之前选择2-3个预期差异大的样本做预测定。

测定意义:GSH-Px是谷胱甘肽氧化还原循环中催化还原型谷胱甘肽(GSH)氧化的主要酶之一。

GSH-Px不仅能够特异地催化还原型谷胱甘肽与ROS反应,生成氧化型谷胱甘肽GSSG,从而保护生物膜免受ROS的损害,维持细胞的正常功能;而且具有保护肝脏、提高机体免疫力、拮抗有害金属离子对机体的伤害和增加机体抗辐射等能力。

测定原理:GSH-Px催化有机过氧化物氧化GSH,产生GSSG;谷胱甘肽还原酶(GR)催化NADPH还原GSSG,再生GSH,同时NADPH氧化生成NADP+;NADPH在340 nm有特征吸收峰,而NADP+没有;通过测定340 nm光吸收减少速率来计算GSH-Px活性。

自备仪器和用品:低温离心机、水浴锅、可调节移液器、酶标仪、96孔板、和蒸馏水。

试剂组成和配置:试剂一:液体120mL×1瓶,室温保存。

试剂二:粉剂×1瓶,4℃保存。

试剂三:液体10μL×1支,-20℃保存。

试剂四:液体200μL×1瓶,4℃保存。

粗酶液提取:1. 组织:按照组织质量(g):试剂一体积(mL)为1:5~10的比例(建议称取约0.1g组织,加入1mL试剂一)进行冰浴匀浆。

8000g,4℃离心10min,取上清置冰上待测。

2. 细菌、真菌:按照细胞数量(104个):试剂一体积(mL)为500~1000:1的比例(建议500万细胞加入1mL试剂一),冰浴超声波破碎细胞(功率300w,超声3秒,间隔7秒,总时间3min);然后8000g,4℃,离心10min,取上清置于冰上待测。

3. 血清等液体:直接测定。

GSH-Px测定操作:1. 酶标仪预热30 min,调节波长到340 nm。

2. 混合试剂在25℃或者37℃(哺乳动物)水浴中预热30min。

3. 混合试剂配制:临用前,在试剂二中加入试剂一20 mL,充分震荡溶解后加入全部试剂三,混匀。

QPCR及QRT-PCR系列产品

QPCR及QRT-PCR系列产品

Invitrogen的ICFC系列产品促销1.QPCR及QRT-PCR系列产品Invitrogen公司专门为中国客户提供的定量PCR试剂盒,结合了 UDG 防止残余污染技术和SYBR® Green I 荧光染料(存在于SYBR® Green I荧光定量PCR试剂盒中),在美国接受了严格的质量监控,可提供极高灵敏度的目的序列定量检测,线性剂量低,反应浓度范围很大。

qPCR Supermix-- 即用型反应剂,专为高特异性、实时定量DNA扩增设计UDG-- 防止携带污染物,减少克隆片段假阳性结果ROX参考染料-- 适用ABI仪器的校正染料产品信息活动时间:即日起至2009年4月30日2.Gibco南美胎牛血清即日起凡优惠价¥1780购买Gibco胎牛血清500ml(目录号:C2027050)即可获赠送价值¥250现金抵用券。

您可以凭现金抵用券在英韦创津公司购买任何商品,此券有效期至2009年5月31日。

产品信息活动时间:即日起至2009年4月30日独特的采集方式:GIBCO采用无菌心脏穿刺的方式采血原装直送,避免污染:原产地采集、加工、检测、包装。

完善的质控:采集、处理、检测、运输等环节都有文件和证书。

3.Invitrogen TA Cloning克隆产品专门用于克隆Taq聚合酶扩增的PCR产物。

采用pCR载体,能产生80%以上的重组产物,90%以上重组产物都包含插入片段。

产品信息活动时间:即日起至2009年5月31日附:pCR载体优点及图谱:3’-T突出端可直接连接Taq扩增的PCR产物可选择T7或T7和Sp6启动子进行体外RNA转录和测序侧向EcoRⅠ位点的通用多接头位点方便了插入片段的切离可以选择卡那霉素或氨苄青霉素进行筛选非常简便的蓝/白克隆筛选具有M13正向和反向引物位点,方便测序4.GIBCO液体培养基系列产品创立近50年的历史,品质优秀,产品种类丰富;为了中国用户利益,特建立国内生产线;所有产品,从原材料到生产全部按照GIBCO质量标准进行,每批均送抵美国公司总部质检合格后,才在国内销售。

hoechst PI染色

hoechst PI染色

2008/11/09 09:55PI、Hoechst33342均可与细胞核DNA(或RNA)结合。

但是PI不能通过正常的细胞膜,Hoechst则为膜通透性的荧光染料,故细胞在处于坏死或晚期调亡时细胞膜被破坏,这时可为PI着红色。

正常细胞和中早期调亡细胞均可被Hoechst着色,但是正常细胞核的Hoechst着色的形态呈圆形,淡兰色,内有较深的兰色颗粒;而调亡细胞的核由于浓集而呈亮兰色,或核呈分叶,碎片状,边集。

故PI着色为坏死细胞;亮兰色,或核呈分叶状,边集的Hoechst着色的为调亡细胞。

电子天平准确称取1mg 碘化丙啶(propidium iodide,PI)溶于10ml PBS(PH 7.2),成100ug/ml 的储备液,用前等量混合(注意避光)protocol:1、收集细胞,数量需1-2×10E6个(悬浮细胞直接吹起即可,对于贴壁细胞用胰酶消化时,最好用DMEM+胰酶消化,且消化过程中不要去移动瓶子,防止消化所形成的细胞团影响后面的染色及分析),离心,11,000rpm,5min。

2、用1ml 冰冷的PBS重悬后,离心:11,000rpm,5min。

3、用200μl冰冷的PBS重悬后,用加样器混匀后,缓慢的加入含有4ml冰冷的70%乙醇的10ml离心管中,边加边摇匀。

-20℃,过夜。

(或者置4℃,1h后进行下一步)4、1,500rpm,10min,小心弃上清后,用1ml冰冷的PBS重悬,1,500rpm,5min。

小心弃上清。

5、加入含有40μg/ml 的PI,100μg/ml的RNase的PBS溶液500μl,37℃,培养30min -1h。

混匀。

溶液配方:PBS 910μlPI 80μlRNase 10μl共1ml6、过滤,供流式检测。

Hoechst 33342/PI双染色法紫外光激发, Hoechst-PI双染在荧光显微镜下可见4 种细胞形态:活细胞(VN) ,染成蓝色,核呈正常结构;早期凋亡细胞(V A) ,染成蓝色,核呈固缩状或圆珠状;晚期凋亡细胞(NV A) ,也被染成红色,但可见明显的染色质凝集。

TUNEL染色

TUNEL染色

相关疾病:•产品名称:罗氏(Roche)公司Tunel试剂盒英文名称:Tunel产品货号:产品规格:50T试剂级别:试剂级产品产地:USA产品商标:RocheIn situ cell death detection kit-POD法一、原理:TUNEL(TdT-mediated dUTP nick end labeling)细胞凋亡检测试剂盒是用来检测组织细胞在凋亡初期进程中细胞核DNA的断裂情形。

其原理是荧光素(fluorescein)标记的dUTP 在脱氧核糖核苷酸结尾转移酶(TdT Enzyme)的作用下,能够连接到凋亡细胞中断裂DNA的3’-OH结尾,并与连接辣根过氧化酶(HRP,horse-radish peroxidase)的荧光素抗体特异性结合,后者又与HRP底物二氨基联苯胺(DAB)反映产生很强的颜色反映(呈深棕色),特异准确地定位正在凋亡的细胞,因此在光学显微镜下即可观看凋亡细胞;由于正常的或正在增殖的细胞几乎没有DNA断裂,因此没有3‘-OH形成,很少能够被染色。

本试剂盒适用于组织样本(石蜡包埋、冰冻和超薄切片)和细胞样本(细胞涂片)在单细胞水平上的凋亡原位检测。

还可应用于抗肿瘤药的药效评判,和通过双色法确信细胞死亡类型和分化时期。

二、器材与试剂器材:光学显微镜及其成像系统、小型染色缸、湿盒(塑料饭盒与纱布)、塑料盖玻片或封口膜、吸管、各种规格的加样器及枪头等;试剂:试剂盒含TdT 10×、荧光素标记的dUTP 1×、标记荧光素抗体的HRP;自备试剂:PBS、双蒸水、二甲苯、梯度乙醇(100、95、90、80、70%)、DAB工作液(临用前配制,5 μl 20×DAB+1μL 30%H2O2+94 μl PBS)、ProteinaseK工作液(10-20 μg/ml in 10 mM Tris/HCl,pH )或细胞通透液(% Triton X-100 in % sodium citrate,临用前配制)、苏木素或甲基绿、DNase 1(3000 U/ml– 3 U/ml in 50 mM Tris-HCl,pH ,10 mM MgCl2,1 mg/ml BSA)等。

欧迪-HCY

欧迪-HCY

1
10
Ueland PM et al., Ed. Robinson K, Homocysteine and Vascular Disease, 2000, 59-84
15 30 100 300 血浆 tHcy (µmol/L)
同型半胱氨酸与妊娠疾病
1. 2.
正常妊娠时Hcy水平降低的原因 可能是妊娠期间血容量增加,血液稀释 胎儿对必需的氨基酸的需要增加,使Hcy过度甲基化,使胎儿对Hcy的利用增加 上述Hcy降低有助于母体血管对妊娠的适用能力 中、晚期Hcy水平升高的原因: 胎儿生长发育迅速对叶酸的需求大大增加
B6
胱硫醚
B6 MS:蛋氨酸合成酶
半胱氨酸
MTHFR:二甲基四氢叶酸还原酶 CBS:β-胱硫醚合成酶 SAHase:S-腺苷同型半胱氨酸水
同型半胱氨酸
NH
2
食入的蛋白质
HOOC
CH
CH
蛋氨酸
2
CH
2
S
CH
3
NH
蛋氨酸是最重要的甲基供体,参 与绝大多数人体代谢过程中的甲 基化反应,它将甲基转移后形成
美国

1995年以前,Hcy检测为科研性质。 1998年,美国心脏协会建议对所有心、脑血管疾病患者及有心脏病家族史的 人进行Hcy检测。

美国疾病控制中心提出:为预防出生缺陷和心脑及外周血管疾病,应对所有 育龄妇女及40岁以上人群进行Hcy检测。

2004年3月,美国疾病控制中心(CDC)宣布补充叶酸,每年可挽救4.8万人 的生命(减少中风死亡3.1万人,心脏病死亡1.7万人)
治疗及预防

抑制Hcy的生成 促进Hcy的代谢 对抗Hcy 三联治疗 锻练 多吃素菜,富含维生素的食物 少吃来源于动物的食物

细胞染色方法大全

细胞染色方法大全

Hoechst染色:hoechst可以穿过活细胞膜与细胞核结合(主要为凋亡活细胞)在紫外光下将核染为蓝色。

Hoechst染细胞核会影响共聚焦显微镜对该样本其他荧光的观察效果.hoechst有hoechest33342和hoechst33258两种hoechsts33258,hoechst33342二者区别不大,但是hoechst33342对细胞的毒性作用更小一些,所以一般来说hoechsts33258用于细胞固定后再染色,而hoechst33342则可以对活细胞直接进行染色! 染色步骤PI (Propidium Iodide碘化丙啶)染色:是一种可对DNA染色的细胞核染色试剂,常用于细胞凋亡检测。

碘化丙啶(Propidium Iodide, PI)是一种核酸染料(红色),它不能透过完整的细胞膜,但凋亡中晚期的细胞和坏死细胞由于细胞膜通透性的增加,PI 能够透过细胞膜而使细胞核染红.用PI单一染色观测培养细胞,只能表示细胞的坏死情况,而不是凋亡(当然晚期凋亡PI亦可着色)。

但是如果您只是想知道细胞的死亡情况,而不是仔细区分坏死或凋亡,那么PI 单一染色也可以。

但是如果您一定要认定细胞的凋亡,那么PI单一染色显然不够!annexin-v染色细胞凋亡早期,细胞膜标志发生改变.其中,磷脂酰丝氨酸(Annexin—V,PS)外翻,Annexin—V 在Ca+存在的条件下与其高亲和力特异性结合。

这样,Annexin—v 染色阳性,表示细胞处于早期凋亡状态。

Annexin—V结合不同的荧光抗体,就可以利用流式细胞仪、荧光显微镜以及共聚焦激光扫描显微镜检测细胞凋亡的发生。

Annexin V用FITC标记发绿色荧光;如果用PE标记就发红色荧光。

JC-1染色 JC—1是一种阳离子染料,可以在线粒体内聚集,低浓度时主要以单体(monomer)存在,发射光以绿光(~525nm)为主;而在高浓度时则可以形成多聚体(aggregation),发射光以红光(-590nm)为主.线粒体本身存在一定的极性(polarization),其外膜为负极,内膜为正极。

细胞凋亡-Hoechst染色试剂盒

细胞凋亡-Hoechst染色试剂盒

细胞凋亡-Hoechst 染色试剂盒简介:细胞凋亡-Hoechst 染色试剂盒(Hoechst Staining Kit)是一种采用经典的Hoechst33258进行细胞凋亡检测的快速简便的试剂盒。

当细胞发生凋亡时,染色质会固缩,Hoechst33258染色后在荧光显微镜下观察,正常细胞的细胞核呈正常的蓝色,而凋亡细胞的细胞核会呈致密浓染,或呈碎块状致密浓染,颜色有些发白。

Hoechst Staining Kit 经常用于培养的贴壁或悬浮细胞以及组织切片的细胞凋亡检测。

该试剂盒检测细胞含量范围一般为0.1~1×106之间。

组成:操作步骤(仅供参考):(一)贴壁细胞1、取洁净盖玻片在70%乙醇中浸泡5分钟或更长时间,无菌超净台内吹干或用无菌的PBS 或生理盐水洗涤3次,再用细胞培养液洗涤1次。

2、加入干预条件使细胞发生凋亡后,吸尽培养液,加入Hoechst 固定液0.5ml 。

3、去除固定液,用PBS 或生理盐水洗,吸尽液体。

洗涤时宜用摇床,或手动晃动。

4、加入Hoechst 33258染色液0.5ml 孵育。

也宜用摇床,或手动晃动数次。

5、弃染色液,用PBS 或生理盐水洗,吸尽液体。

洗涤时宜用摇床,或手动晃动。

6、滴一滴抗荧封片剂于载玻片上,盖上贴有细胞的盖玻片,让细胞接触封片剂,尽量避免气泡。

7、荧光显微镜可检测到呈蓝色的细胞核。

激发波长350nm 左右,发射波长460nm 左右。

(二)悬浮细胞1、离心收集细胞样品于1.5ml 离心管内并弃液,加入Hoechst 固定液0.5ml ,缓缓悬起细胞固定。

2、低速离心去除固定液,用PBS 或生理盐水洗。

洗涤时手动晃动数次。

3、低速离心离心后吸去大部分液体保留约50μl 液体,再缓缓悬起细胞,滴加至载玻片上, 编号 名称 DA0032 100T Storage 试剂(A): Hoechst 固定液 50ml RT 试剂(B): Hoechst 染色液 50ml -20℃ 避光 试剂(C): 荧光封片剂 5ml 4℃ 避光 使用说明书 1份尽量使细胞分布均匀。

细胞内钙离子的检测方法

细胞内钙离子的检测方法
产品说明书
细胞内钙离子检测试剂盒(BBcellProbeTM F3 法)
产品组成:
产品编号 规格
钙离子染色液
BB-48112-1 50 -500T 25ul
BB-48112-2 100 -1000T
50ul
储存条件: -学研究使用,不可用于诊断或治疗。 ● 螺旋盖微量试剂管装的试剂在开盖前请短暂离心,将盖和管内壁上的液体离心至管 底,避免开盖时试剂损失。 ● 样品或试剂被细菌或真菌污染或试剂交叉污染可能会导致错误的结果。 ● 最好使用一次性吸头、管、瓶或玻璃器皿,可重复使用的玻璃器皿必须在使用前清 洗并彻底清除残留清洁剂。 ● 避免皮肤或粘膜与试剂接触。 ● 钙离子染色液为 DMSO 溶液,冬季气温较低时在室温时为凝固状态,极易粘附在管 壁、吸头壁。注意需要加热溶解,吸头也需要放在培养箱预热,否者容易再次凝固 在吸头内壁产生损耗。 ● 荧光染料均存在淬灭问题,请尽量注意避光,以减缓荧光淬灭。
波长 526nm。
相关产品:
产品 Annexin V-FITC/PI 凋亡试剂盒 Annexin V-EGFP/PI 凋亡试剂盒 MTT 细胞增殖及毒性检测试剂盒 CCK-8 细胞增殖毒性检测试剂盒 WST-1 细胞增殖毒性检测试剂盒 MTS 细胞增殖与毒性检测试剂盒 Hoechst33342/PI 双染试剂盒 DAPI 染色试剂盒 细胞存活率检测试剂盒
定最佳条件。以下方法仅供参考。 ● 可以在染色溶液中加入等体积的 20% Pluronic F127 溶液,Pluronic F127 可以帮助 BBcellProbeTM
F3 更快进入细胞,不建议在 Pluronic F127 中长期保存 BBcellProbeTM F3 溶液。
1、 染色工作液的配制: 用 HBSS 稀释 BBcellProbeTM F3 溶液 400 倍-4000 倍,配制成 BBcellProbeTM F3 染色 工作液。 【注】:推荐该探针加载浓度在 400-4000 倍稀释,具体的使用浓度需根据实验要求进行 优化。为了避免过度加载造成细胞毒性,建议在取得有效结果的基础上尽量使用最低探 针浓度。

生物实验染色剂

生物实验染色剂

生物实验染色剂北京华越洋生物过碘酸溶液(0.5%) 100ml 碳水染色40% 4℃,避光,6个月又称高碘酸溶液,是一种氧化剂,常与Schiff试剂合用对糖原进行染色过碘酸溶液(1%) 100ml 碳水染色40% 4℃,避光,6个月又称高碘酸溶液,是一种氧化剂,常与Schiff试剂合用对糖原进行染色Schiff试剂50ml 碳水染色40% 4℃,避光,6个月又称雪夫试剂、希夫试剂,主要用于碳水化合物染色:如糖原,粘蛋白,糖蛋白,多糖,透明质酸。

又称无色品红染色液。

为无色液体,一般变黄或粉红应弃用。

Schiff试剂100ml 碳水染色40% 4℃,避光,6个月又称雪夫试剂、希夫试剂,主要用于碳水化合物染色:如糖原,粘蛋白,糖蛋白,多糖,透明质酸。

又称无色品红染色液。

为无色液体,一般变黄或粉红应弃用。

糖原PAS染色液4×50ml 碳水染色40% 4℃,避光,6个月经典的糖原染色法,不仅能够显示糖原,还能显示中性黏液性物质和某些酸性物质以及软骨、垂体、真菌、色素、淀粉样物质、基底膜糖原染色中北京华越洋生物推荐采用该染色液,是最常用的经典糖原染色法,高碘酸和schiff试剂应低温保存。

染色结果为:PAS反应阳性物质(糖原或多糖)均呈红色或紫红色;细胞核呈蓝色。

糖原PAS染色液4×100ml 碳水染色40% 4℃,避光,6个月经典的糖原染色法,不仅能够显示糖原,还能显示中性黏液性物质和某些酸性物质以及软骨、垂体、真菌、色素、淀粉样物质、基底膜糖原染色中北京华越洋生物推荐采用该染色液,是最常用的经典糖原染色法,高碘酸和schiff试剂应低温保存。

染色结果为:PAS反应阳性物质(糖原或多糖)均呈红色或紫红色;细胞核呈蓝色。

糖原PAS染色液(细胞专用) 4×20ml 碳水染色40% 4℃,避光,6个月经典的糖原染色法,不仅能够显示糖原,还能显示中性黏液性物质和某些酸性物质,特别适用于细胞、极其薄的切片。

羟脯氨酸试剂盒说明书

羟脯氨酸试剂盒说明书

羟脯氨酸(Hydroxyproline,HYP)试剂盒说明书微量法100T/96S注意:正式测定之前选择2-3个预期差异大的样本做预测定。

测定意义:HYP是机体胶原蛋白主要成分之一,胶原蛋白大多分布于皮肤、腱、软骨和血管等,因此HYP含量是反映胶原组织代谢及纤维化程度的一项重要指标。

测定原理:样品经水解产生游离的HYP,进一步被氯胺T氧化,氧化产物与对二甲氨基苯甲醛反应,产生红色化合物,在560nm处有特征吸收峰。

通过测定样品水解液560nm吸光值,可计算HYP含量。

自备实验用品及仪器:天平、烘箱、玻璃管、离心机、水浴锅、可见分光光度计/酶标仪、微量石英比色皿/96孔板、无水乙醇、异丙醇、6mol/L盐酸和蒸馏水。

试剂组成和配制:组织提取液:6mol/L盐酸,自备。

浓盐酸:H2O(V/V)= 1:1,室温保存。

细胞提取液:液体100mL×1瓶,4℃保存。

试剂一:液体6mL×1瓶,4℃避光保存。

试剂二:液体6mL×1瓶,4℃避光保存。

羟脯氨酸提取:1. 组织:称取约0.2g样品于玻璃管,加入2mL的组织提取液,置于110℃烘箱,水解6至12小时,用提取液定容至2mL,12000g,25℃,离心20min,取上清待测。

2. 细胞:取约500万个细胞,加入1mL的细胞提取液,于高压消毒器中15磅保持30min,自然降压后待测。

3. 血清游离羟脯氨酸提取:取0.1mL血清,加入0.5mL无水乙醇使蛋白质沉淀,8000g4℃离心5min。

将上清倒入另一个EP管,氮吹或沸水浴将乙醇挥发干。

冷却后再加入0.2mL50%异丙醇,充分溶解混匀待测。

测定操作表:1、分光光度计/酶标仪预热30min,调节波长至560nm,蒸馏水调零。

2、操作表对照管测定管样本(µL)60试剂一(µL)60 60混匀,室温静置20min试剂二(µL)60 60H2O(µL)180 120混匀,60℃,20min,取出后25℃静置15 min,取200µL于微量石英比色皿/96孔板中检测560nm处吸光值。

细胞凋亡荧光Hoechst 33342 PI 双染试剂盒

细胞凋亡荧光Hoechst 33342 PI 双染试剂盒

细胞凋亡荧光Hoechst33342/PI双染试剂盒货号:CA1120规格:100T/500T保存:4℃保存六个月有效,-20℃保存一年有效。

Hoechst染色液和PI染色液需避光保存。

产品简介:本细胞凋亡荧光Hoechst33342/PI双染试剂盒为您提供了一种经典而又快速简便的细胞凋亡与细胞坏死检测方法。

本试剂盒采用Hoechst33342和碘化丙啶(Propidium Iodide,PI)双染的方法。

细胞发生凋亡时,染色质会固缩。

Hoechst33342可以穿透细胞膜,染色后凋亡细胞荧光会比正常细胞明显增强。

碘化丙啶(PI)不能穿透细胞膜,对于具有完整细胞膜的正常细胞或凋亡细胞不能染色。

而对于坏死细胞,其细胞膜的完整性丧失,碘化丙啶(PI)可以染色坏死细胞。

上述两种染料双染后,使用流式细胞仪或荧光显微镜检测时,正常细胞为弱红色荧光+弱蓝色荧光,凋亡细胞为弱红色荧光+强蓝色荧光,坏死细胞为强红色荧光+强蓝色荧光。

参考下图,左图为诱导凋亡前的正常细胞,右图为诱导凋亡后的细胞。

本试剂盒足够检测100个样品,每个样品的细胞数量可以为1×105-1×106。

产品内容:100T500T细胞染色缓冲液100ml500mlHoechst染色液0.5ml 2.5mlPI染色液0.5ml 2.5ml说明书1份1份使用说明:1.每个样品收集约10-100万细胞于1.5ml离心管内,离心弃上清。

细胞沉淀用0.8-1ml细胞染色缓冲液重悬。

2.加入5微升Hoechst染色液。

3.加入5微升PI染色液。

4.混匀,冰浴或4℃孵育20-30分钟。

5.用流式细胞仪检测红色荧光和蓝色荧光。

6.如果使用荧光显微镜检测,检测前离心沉淀细胞,用PBS洗涤一次,再涂片观察红色荧光和蓝色荧光。

对于贴壁细胞使用荧光显微镜检测,可以不收集细胞,直接依次按照上述比例加入细胞染色缓冲液、Hoechst染色液和PI染色液冰浴或4℃染色20-30分钟。

Hoechest 33258 染色说明

Hoechest 33258 染色说明

Hoechst 33258说明书Hoechst 33258CAS#:23491-45-423491-45-423491-45-423491-45-423491-45-4化学名:2’-(4-Hydroxyphenyl)-5-(4-methyl-1-piperazinyl)-2,5’-bi-1H-benzimidazole, trih ydrochloride别名:Hoechst 33258,bisBenzimide H 33258,HOE 33258bisBenzimide H 33258或HOE 33258分子式:C25H24N6O · 3HCl分子量:533.88性质:1. 外观:黄色粉末2. 纯度:≥95%(HPLC)3. 产品描述:Hoechst 33258是一种可以穿透细胞膜的蓝色荧光染料,对细胞的毒性较低。

Hoechst 33258染色常用于细胞凋亡检测,染色后用荧光显微镜观察或流式细胞仪检测。

也常用于普通的细胞核染色,或常规的DNA染色。

Hoechst 33258的最大激发波长为346nm,最大发射波长为460nm。

Hoechst 33258和双链DNA结合后,最大激发波长为352nm,最大发射波长为461nm。

Hoechst 33258溶于水,溶解度可达10mg/mL。

4. 染色程序:(1)用PBS或合适的缓冲液制备10~50µM Hoechst33258染料。

(2)将1/10细胞培养基体积的Hoechst染料溶液加入细胞培养物中(可以用1/10浓度的Hoechst染料缓冲液代替培养基)。

(3)在37℃培养细胞10~20分钟。

(4)用PBS或合适的缓冲液洗细胞两次。

(5)用带有352nm激发波长,461nm发射波长的滤光片的荧光显微镜观察细胞。

Hoechst 33258是一种可以穿透细胞膜的蓝色荧光染料,对细胞的毒性较低。

Hoechst 33258是一种可以穿透细胞膜的蓝色荧光染料,对细胞的毒性较低。

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