Human sTREM-1
仪器网 · 2012-07-21 00:43 · 35794 次点击
DrugNames
GenericName:HumansTREM-1ELISAKit.
Purpose
ThiskitallowsforthedeterminationofsTREM-1concentrationsinhumanserum,bloodplasma,tissueandotherbiologicalfluids.
Principleoftheassay
ThekitassayhumansTREM-1levelinthesample,usePurifiedhumansTREM-1antibodytocoatmicrotiterplatewells,makesolid-phaseantibody,thenaddsTREM-1towells,CombinedsTREM-1antibodywhichWithHRPlabeled,becomeantibody-antigen-enzyme-antibodycomplex,afterwashingCompletely,AddTMBsubstratesolution,TMBsubstratebecomesbluecolorAtHRPenzyme-catalyzed,reactionisterminatedbytheadditionofasulphuricacidsolutionandthecolorchangeismeasuredspectrophotometricallyatawavelengthof450nm.TheconcentrationofsTREM-1inthesamplesisthendeterminedbycomparingtheO.D.ofthesamplestothestandardcurve.
Materialsprovidedwiththekit
Materialsprovidedwiththekit
48determinations
96determinations
Storage
Usermanual
1
1
Closureplatemembrane
2
2
Sealedbags
1
1
Microelisastripplate
1
1
2-8℃
Standard:270ng/L
0.5ml×1bottle
0.5ml×1bottle
2-8℃
Standarddiluent
1.5ml×1bottle
1.5ml×1bottle
2-8℃
HRP-Conjugatereagent
3ml×1bottle
6ml×1bottle
2-8℃
Samplediluent
3ml×1bottle
6ml×1bottle
2-8℃
ChromogenSolutionA
3ml×1bottle
6ml×1bottle
2-8℃
ChromogenSolutionB
3ml×1bottle
6ml×1bottle
2-8℃
StopSolution
3ml×1bottle
6ml×1bottle
2-8℃
washsolution
(20ml×20fold)
×1bottle
(20ml×30fold)
×1bottle
2-8℃
Specimenrequirements
1.serum-coagulationatroomtemperature10-20mins,centrifugation20-minatthespeedof2000-3000r.p.m.removesupernatant,Ifprecipitationappeared,Centrifugalagain.
2.plasma-usesuitedEDTAorcitrateorasananticoagulant,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,damagecellsandreleaseofintracellularcomponents,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:180ng/L,120ng/L,60ng/L,30ng/L,15ng/L)
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,exceptblankwell.
7.incubate:Operationwith3.
8.washing:Operationwith5.
9.color:AddChromogenSolutionA50ulandChromogenSolutionBtoeachwell,evadethelightpreservationfor15minat37℃
10.Stopthereaction:AddStopSolution50μltoeachwell,Stopthereaction(thebluecolorchangetoyellowcolor).
11.assay:takeblankwellaszero,Readabsorbanceat450nmafterAddingStopSolutionandwithin15min.
Importantnotes
1.Thekittakesoutfromtherefrigerationenvironmentshouldbebalanced15-30minutesintheroomtemperature,ELISAplatescoatedifhasnotuseupafteropened,theplateshouldbestoredinSealedbag.
2.washingbufferwillCrystallizationseparation,itcanbeheatedthewaterhelpsdissolvewhendilute.Washingdoesnotaffecttheresult.
3.addSamplewithsamplerEachstep,Andproofreaditsaccuracyfrequently,avoidstheexperimentalerror.addsamplewithin5min,ifthenumberofsampleismuch,recommendtouseVolley.
4.ifthetestingmaterialcontentisexcessivelyhigher(ThesampleODisbiggerthanthefirststandardwell),pleasediluteSample(n-fold),Pleasediluenteandmultipliedbythedilutionfactor.(×n×5).
5.Closureplatemembraneonlylimitsthedisposableuse,toavoidcross-contamination.
6.Thesubstrateevadethelightpreservation.
7.Pleaseaccordingtouseinstructionstrictly,Thetestresultdeterminationmusttakethemicrotiterplatereaderasastandard.
8.Allsamples,washingbufferandeachkindofrejectshouldaccordingtoinfectivematerialprocess.
9.Donotmixreagentswiththosefromotherlots.
Takethestandarddensityasthehorizontal,theODvalueforthevertical,drawthestandardcurveongraphpaper,FindoutthecorrespondingdensityaccordingtothesampleODvaluebytheSamplecurve,multipliedbythedilutionmultiple,orcalculatethestraightlineregressionequationofthestandardcurvewiththestandarddensityandtheODvalue,withthesampleODvalueintheequation,calculatethesampledensity,multipliedbythedilutionfactor,theresultisthesampleactualdensity.
Calculate
Thischartisforreferenceonly
Assayrange
10ng/L-200ng/L
Storageandvalidity
1.Storage:2-8℃.
2.validity:sixmonths.