人催产素(OT)说明书-试剂
人催产素(OT)酶联免疫分析(ELISA)
试剂盒使用说明书
本试剂仅供研究使用目的:本试剂盒用于测定人血清,血浆及相关液体样本中催产素(OT)的含量。
实验原理:
本试剂盒应用双抗体夹心法测定标本中人催产素(OT)水平。用纯化的人催产素(OT)
抗体包被微孔板,制成固相抗体,往包被单抗的微孔中依次加入催产素(OT),再与HRP标记的催产素(OT)抗体结合,形成抗体-抗原-酶标抗体复合物,经过彻底洗涤后加底物TMB显色。TMB在HRP酶的催化下转化成蓝色,并在酸的作用下转化成最终的黄色。颜色的深浅和样品中的催产素(OT)呈正相关。用酶标仪在450nm波长下测定吸光度(OD值),通过标准曲线计算样品中人催产素(OT)含量。试剂盒组成:
试剂盒组成说明书封板膜密封袋酶标包被板标准品:180pg/mL标准品稀释液酶标试剂样品稀释液显色剂A液显色剂B液终止液浓缩洗涤液
48孔配置1份2片(48)
1个1×480.5ml×1瓶1.5ml×1瓶3ml×1瓶3ml×1瓶3ml×1瓶3ml×1瓶3ml×1瓶
(20ml×20倍)×1瓶
96孔配置1份2片(96)
1个1×960.5ml×1瓶1.5ml×1瓶6ml×1瓶6ml×1瓶6ml×1瓶6ml×1瓶6ml×1瓶(20ml×30倍)×1瓶
2-8℃保存2-8℃保存2-8℃保存2-8℃保存2-8℃保存2-8℃保存2-8℃保存2-8℃保存2-8℃保存
保存
样本处理及要求:
1.血清:室温血液自然凝固10-20分钟,离心20分钟左右(2000-3000转/分)。仔细收集上
清,保存过程中如出现沉淀,应再次离心。
2.血浆:应根据标本的要求选择EDTA或柠檬酸钠作为抗凝剂,混合10-20分钟后,离心
20分钟左右(2000-3000转/分)。仔细收集上清,保存过程中如有沉淀形成,应该再次离心。
3.尿液:用无菌管收集,离心20分钟左右(2000-3000转/分)。仔细收集上清,保存过程
中如有沉淀形成,应再次离心。胸腹水、脑脊液参照实行。
4.细胞培养上清:检测分泌性的成份时,用无菌管收集。离心20分钟左右(2000-3000转/
分)。仔细收集上清。检测细胞内的成份时,用PBS(PH7.2-7.4)稀释细胞悬液,细胞浓度达到100万/ml左右。通过反复冻融,以使细胞破坏并放出细胞内成份。离心20分
钟左右(2000-3000转/分)。仔细收集上清。保存过程中如有沉淀形成,应再次离心。5.组织标本:切割标本后,称取重量。加入一定量的PBS,PH7.4。用液氮迅速冷冻保存备
用。标本融化后仍然保持2-8℃的温度。加入一定量的PBS(PH7.4),用手工或匀浆器将标本匀浆充分。离心20分钟左右(2000-3000转/分)。仔细收集上清。分装后一份待检测,其余冷冻备用。
6.标本采集后尽早进行提取,提取按相关文献进行,提取后应尽快进行实验。若不能马上
进行试验,可将标本放于-20℃保存,但应避免反复冻融.
7.不能检测含NaN3的样品,因NaN3抑制辣根过氧化物酶的(HRP)活性。操作步骤
1.标准品的稀释与加样:在酶标包被板上设标准品孔10孔,在第一、第二孔中分别加标
准品100μl,然后在第一、第二孔中加标准品稀释液50μl,混匀;然后从第一孔、第二孔中各取100μl分别加到第三孔和第四孔,再在第三、第四孔分别加标准品稀释液50μl,混匀;然后在第三孔和第四孔中先各取50μl弃掉,再各取50μl分别加到第五、第六孔中,再在第五、第六孔中分别加标准品稀释液50ul,混匀;混匀后从第五、第六孔中各取50μl分别加到第七、第八孔中,再在第七、第八孔中分别加标准品稀释液50μl,混匀后从第七、第八孔中分别取50μl加到第九、第十孔中,再在第九第十孔分别加标准品稀释液50μl,混匀后从第九第十孔中各取50μl弃掉。(稀释后各孔加样量都为50μl,浓度分别为120pg/mL,80pg/mL,40pg/mL,20pg/mL,10pg/mL)。
2.加样:分别设空白孔(空白对照孔不加样品及酶标试剂,其余各步操作相同)、待测样
品孔。在酶标包被板上待测样品孔中先加样品稀释液40μl,然后再加待测样品10μl(样品最终稀释度为5倍)。加样将样品加于酶标板孔底部,尽量不触及孔壁,轻轻晃动混匀。
3.温育:用封板膜封板后置37℃温育30分钟。
4.配液:将30(48T的20倍)倍浓缩洗涤液用蒸馏水30(48T的20倍)倍稀释后备用。5.洗涤:小心揭掉封板膜,弃去液体,甩干,每孔加满洗涤液,静置30秒后弃去,如此
重复5次,拍干。
6.加酶:每孔加入酶标试剂50μl,空白孔除外。7.温育:操作同3。8.洗涤:操作同5。
9.显色:每孔先加入显色剂A50μl,再加入显色剂B50μl,轻轻震荡混匀,37℃避光显色
15分钟.
10.终止:每孔加终止液50μl,终止反应(此时蓝色立转黄色)。
11.测定:以空白空调零,450nm波长依序测量各孔的吸光度(OD值)。测定应在加终止
液后15分钟以内进行。注意事项:
1.试剂盒从冷藏环境中取出应在室温平衡15-30分钟后方可使用,酶标包被板开封后如未
用完,板条应装入密封袋中保存。
2.浓洗涤液可能会有结晶析出,稀释时可在水浴中加温助溶,洗涤时不影响结果。
3.各步加样均应使用加样器,并经常校对其准确性,以避免试验误差。一次加样时间最好
控制在5分钟内,如标本数量多,推荐使用排枪加样。
4.请每次测定的同时做标准曲线,最好做复孔。如标本中待测物质含量过高(样本OD值
大于标准品孔第一孔的OD值),请先用样品稀释液稀释一定倍数(n倍)后再测定,计算时请最后乘以总稀释倍数(×n×5)。5.封板膜只限一次性使用,以避免交叉污染。
6.底物请避光保存。
7.严格按照说明书的操作进行,试验结果判定必须以酶标仪读数为准.8.所有样品,洗涤液和各种废弃物都应按传染物处理。9.本试剂不同批号组分不得混用。
10.如与英文说明书有异,以英文说明书为准。计算:
以标准物的浓度为横坐标,OD值为纵坐标,在坐标纸上绘出标准曲线,根据样品的OD值由标准曲线查出相应的浓度;再乘以稀释倍数;或用标准物的浓度与OD值计算出标准曲线的直线回归方程式,将样品的OD值代入方程式,计算出样品浓度,再乘以稀释倍数,即为样品的实际浓度。
(此图仅供参考)
试剂盒性能:
1.样品线性回归与预期浓度相关系数R值为0.990以上。2.批内与批见应分别小于9%和11%检测范围:
5.0pg/mL-150pg/mL
保存条件及有效期:1.试剂盒保存:;2-8℃。2.有效期:6个月
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HumanOxytocin(OT)
FORRESEARCHUSEONLY
DrugNames
GenericName:HumanOxytocin(OT)ELISAKit.
Purpose
ThiskitallowsforthedeterminationofOTconcentrationsinHumanserum,bloodplasma,andotherbiologicalfluids.
Principleoftheassay
ThekitassayHumanOTlevelinthesample,usePurifiedHumanOTantibodytocoat
microtiterplatewells,makesolid-phaseantibody,thenaddOTtowells,CombinedOTantibodywhichWithHRPlabeled,becomeantibody-antigen-enzyme-antibodycomplex,afterwashingCompletely,AddTMBsubstratesolution,TMBsubstratebecomesbluecolorAtHRPenzyme-catalyzed,reactionisterminatedbytheadditionofasulphuricacidsolutionandthecolorchangeismeasuredspectrophotometricallyatawavelengthof450nm.TheconcentrationofOTinthesamplesisthendeterminedbycomparingtheO.D.ofthesamplestothestandardcurve.
Materialsprovidedwiththekit
Materialsprovidedwith
thekitUsermanual
Closureplatemembrane
SealedbagsMicroelisastripplateStandard:180pg/mLStandarddiluentHRP-Conjugatereagent
SamplediluentChromogenSolutionAChromogenSolutionB
StopSolutionwashsolution
48determinations
1211
96determinations
1211
Storage
2-8℃2-8℃2-8℃2-8℃2-8℃2-8℃2-8℃2-8℃2-8℃
0.5ml×1bottle1.5ml×1bottle3ml×1bottle3ml×1bottle3ml×1bottle3ml×1bottle3ml×1bottle(20ml×20fold)
×1bottle
0.5ml×1bottle1.5ml×1bottle6ml×1bottle6ml×1bottle6ml×1bottle6ml×1bottle6ml×1bottle(20ml×30fold)
×1bottle
Specimenrequirements
1.serum-coagulationatroomtemperature10-20mins,centrifugation20-minatthespeedof2000-3000r.p.m.removesupernatant,Ifprecipitationappeared,Centrifugalagain.2.plasma-usesuitedEDTAorcitrateplasmaasananticoagulant,mix10-20mins,centrifugation20-minatthespeedof2000-3000r.p.m.removesupernatant,Ifprecipitationappeared,Centrifugalagain.
3.Urine-collectsueasterilecontainer,centrifugation20-minatthespeedof2000-3000r.p.m.removesupernatant,Ifprecipitationappeared,Centrifugalagain.TheOperationofHydrothoraxandcerebrospinalfluidReferencetoit.
4.cellculturesupernatant-detectsecretorycomponents,collectsueasterilecontainer,centrifugation20-minatthespeedof2000-3000r.p.m.removesupernatant,detectthecompositionofcells,DilutcellsuspensionwithPBS(PH7.2-7.4),Cellconcentrationreached1million/ml,repeatedfreeze-thawcycles,damagecellsandreleaseof
intracellularcomponents,centrifugation20-minatthespeedof2000-3000r.p.m.removesupernatant,Ifprecipitationappeared,Centrifugalagain.
5.Tissuesamples-Aftercuttingsamples,checktheweight,addPBS(PH7.2-7.4),Rapidlyfrozenwithliquidnitrogen,maintainsamplesat2-8℃aftermelting,addPBS(PH7.4),HomogenizedbyhandorGrinders,centrifugation20-minatthespeedof2000-3000r.p.m.removesupernatant.
6.extractassoonaspossibleafterSpecimencollection,andaccordingtotherelevantliterature,andshouldbeexperimentassoonaspossibleaftertheextraction.Ifitcan’t,specimencanbekeptin-20℃topreserve,Avoidrepeatedfreeze-thawcycles.7.Can’tdetectthesamplewhichcontainNaN3,becauseNaN3inhibitsHRPactive.
Assayprocedure
1.DiluteandaddsampletoStandard:set10StandardwellsontheELISAplatescoated,addStandard100μltothefirstandthesecondwell,thenaddStandarddilution50μltothefirstandthesecondwell,mix;takeout100μlformthefirstandthesecondwellthenaddittothethirdandtheforthwellseparately.thenaddStandarddilution50μltothethirdandtheforthwell,mix;thentakeout50μlfromthethirdandtheforthwelldiscard,add50μltothefifthandthesixthwell,thenaddStandarddilution50μltothefifthandthesixthwell,mix;takeout50μlfromthefifthandthesixthwellandaddtotheseventhandtheeighthwell,thenaddStandarddilution50μltotheseventhandtheeighthwell,mix;takeout50μlfromtheseventhandtheeighthwellandaddtotheninthandthetenthwell,addStandarddilution50μltotheninthandthetenthwell,mix,takeout50μlfromtheninthandthetenthwelldiscard(addSample50μltoeachwellafterDiluting,(density:120pg/mL,80pg/mL,40pg/mL,20pg/mL,10pg/mL)2.addsample:Setblankwellsseparately(blankcomparisonwellsdon’taddsampleandHRP-Conjugatereagent,othereachstepoperationissame).testingsamplewell.addSampledilution40μltotestingsamplewell,thenaddtestingsample10μl(samplefinaldilutionis5-fold),addsampletowells,don’ttouchthewellwallasfaraspossible,andGentlymix.3.Incubate:AfterclosingplatewithClosureplatemembrane,incubatefor30minat37℃.4.Configurateliquid:30-fold(or20-fold)washsolutiondiluted30-fold(or20-fold)withdistilledwaterandreserve.
5.washing:UncoverClosureplatemembrane,discardLiquid,drybyswing,addwashingbuffertoeverywell,stillfor30sthendrain,repeat5times,drybypat.6.addenzyme:AddHRP-Conjugatereagent50μltoeachwell,except7.incubate:Operationwith3.8.washing:Operationwith5.
9.color:AddChromogenSolutionA50ulandChromogenSolutionBtoeachwell,evadethelightpreservationfor15minat37℃
10.Stopthereaction:AddStopSolution50μltoeachwell,Stopthereaction(thebluecolorchangetoyellowcolor).
11.assay:takeblankwellaszero,Readabsorbanceat450nmafterAddingStopSolutionandwithin15min.
blankwell.
Importantnotes
1.Thekittakesoutfromtherefrigerationenvironmentshouldbebalanced15-30minutesintheroomtemperature,ELISAplatescoatedifhasnotuseupafteropened,theplateshouldbestoredinSealedbag.
2.washingbufferwillCrystallizationseparation,itcanbeheatedthewaterhelpsdissolvewhendilute.Washingdoesnotaffecttheresult.
3.addSamplewithsamplerEachstep,Andproofreaditsaccuracyfrequently,avoidstheexperimentalerror.addsamplewithin5mins,ifthenumberofsampleismuch,recommendtouseVolley.
4.ifthetestingmaterialcontentisexcessivelyhigher(ThesampleODisbiggerthanthefirststandardwell),pleasediluteSample(n-fold),Pleasediluenteandmultipliedbythedilutionfactor.(×n×5).
5.Closureplatemembraneonlylimitsthedisposableuse,toavoidcross-contamination.6.Thesubstrateevadethelightpreservation.
7.Pleaseaccordingtouseinstructionstrictly,Thetestresultdeterminationmusttakethemicrotiterplatereaderasastandard.
8.Allsamples,washingbufferandeachkindofrejectshouldaccordingtoinfectivematerial
process.
9.Donotmixreagentswiththosefromotherlots.
Calculate
Takethestandarddensityasthehorizontal,theODvalueforthevertical,drawthestandardcurveongraphpaper,FindoutthecorrespondingdensityaccordingtothesampleODvaluebytheSamplecurve,multipliedbythedilutionmultiple,orcalculatethestraightlineregressionequationofthestandardcurvewiththestandarddensityandtheODvalue,withthesampleODvalueintheequation,calculatethesampledensity,multipliedbythedilutionfactor,theresultisthesampleactualdensity.
Thischartisforreferenceonly
Assay
range
5.0pg/mL-150pg/mL
Storageandvalidity
1.Storage:
2-8℃.
2.validity:sixmonths.