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1、ChickenIFN-FORRESEARCHUSEON1YAssayrange:1.5ng1-48ng196determinationsPurposeThiskita11owsforthedeterminationofIFN-concentrationsinChickenserum,ce11cu1tureSupernatesandotherbio1ogica1f1uidsPrincip1eoftheassayThekitassayChickenIFN-1eve1inthesamp1e,usePurifiedChickenIFN-antibodytocoatmicrotiterp1atewe11
2、s,makeso1id-phaseantibody,thenaddIFN-towe11s,CombinedIFN-antibodywhichWithHRP1abe1ed,bemeantibody-antigen-enzyme-antibodycomp1ex,afterwashingComp1ete1y,AddTMBsubstrateSoIution1TMBsubstratebecomesb1ueco1orAtHRPenzyme-cata1yzed,reactionisterminatedbytheadditionofasu1phuricacidso1utionandthe1orchangeis
3、measuredSpectrophotometrica11yatawave1engthof450nm.TheconcentrationofChickenIFN-inthesamp1esisthendeterminedbycomparingthe0.D.ofthesamp1estothestandardcurve.Materia1sprovidedwiththekit1washso1ution20m11bott1e7StopSo1utionm11bott1e2HRP-Conjugatereagent6m11bott1e8Standard(96ng1)0.5m11bott1e3Microe1isa
4、stripp1ate12we118strips9Standarddi1uent1.5m11bott1e4Samp1edi1uent6m11bott1e10Instruction15ChromogenSo1utionA6m11bott1e11C1osurep1atemembrane26ChromogenSo1utionB6m11bott1e12Sea1edbags1Specimenrequirements1. extractassoonaspossib1eafterSpecimenco11ection,andaccordingtothere1evant1iterature,andshou1dbe
5、experimentassoonaspossib1eaftertheextraction.Ifitcant,specimencanbekeptin-20topreserve,Avoidrepeatedfreeze-thawcyc1es.2. Cantdetectthesamp1ewhichcontainNaN3,becauseNaN3inhibitsHRPactive.Assayprocedure1.Di1uteandaddsamp1e:Di1uteOrigina1densityStandardasfo11owtab1e:48ng15Standard1501Origina1densitySta
6、ndard+1501Standarddi1uent24ng14Standard15015Standard+1501Standarddi1uent12ng13Standard15014Standard+1501Standarddi1uent6ng12Standard15013Standard+1501Standarddi1uent3ng11Standard15012Standard+1501Standarddi1uent3. addsamp1e:Setb1ankwe11sseparate1y(b1ankcomparisonwe11sdontaddsamp1eandHRP-Conjugaterea
7、gent,othereachstepoperationissame),testingsamp1ewe11,addSamp1edi1ution401totestingsamp1ewe11,thenaddtestingsamp1e101(samp1efina1di1utionis5-fo1d),addsamp1etowe11s,donttouchthewe11wa11asfaraspossib1e,andGent1ymix.3.Incubate:Afterc1osingp1atewithC1osurep1atemembrane,incubatefor30minat37.4.Configurate1
8、iquid:30-fo1d(or20-fo1d)washso1utiondi1uted30-fo1d(or20-fo1d)withdisti11edwaterandreserve.5.washing:UncoverC1osurep1atemembrane,discard1iquid,drybyswing,addwashingbuffertoeverywe11,sti11for30sthendrain,repeat5times,drybypat.addenzyme:AddHRP-Conjugatereagent501toeachwe11,exceptb1ankwe11.7.incubate:Op
9、erationwith3.8.washing:Operationwith5.9.co1or:AddChromogenSo1utionA50u1andChromogenSo1utionBtoeachwe11,evadethe1ightpreservationfor10minat3710.Stopthereaction:AddStopSo1ution501toeachwe11,Stopthereaction(theb1ueco1orchangetoye11owco1or).11.assay:takeb1ankwe11aszero,Readabsorbanceat450nmafterAddingSt
10、opSo1utionandwithin15min.StepsdescriptionStandard,Samp1edi1uentAddStandard,Samp1edi1uent,incubatefor30minat37.Wash5time1AddHRP-Conjugatereagent,incubatefor30minat37.Wash5times,AddChromogenSoIutionAandB,incubatefor10minat37.AddStopSo1utionCa1cu1ateTakethestandarddensityasthehorizonta1,theODva1ueforth
11、evertica1,drawthestandardcurveongraphpaper,Findoutthecorrespondingdensityaccordingtothesamp1eODva1uebytheSamp1ecurve,mu1tip1iedbythedi1utionmu1tip1e,orca1cu1atethestraight1ineregressionequationofthestandardcurvewiththestandarddensityandtheODva1ue,withthesamp1eODva1ueintheequation,ca1cu1atethesamp1ed
12、ensity,mu1tip1iedbythedi1utionfactor,theresu1tisthesamp1eactua1density.Importantnotes1. Thekittakesoutfromtherefrigerationenvironmentshou1dbeba1anced15-30minutesintheroomtemperature,E1ISAp1atescoatedifhasnotuseupafteropened,thep1ateshou1dbestoredinSea1edbag.2. washingbufferwi11Crysta11izationseparat
13、ion,itcanbeheatedthewaterhe1psdisso1vewhendi1ute.Washingdoesnotaffecttheresu1t.3. addSamp1ewithsamp1erEachstep,Andproofreaditsaccuracyfrequent1y,avoidstheexperimenta1error,addsamp1ewithin5min,ifthenumberofsamp1eismuch,recommendtouseVo11ey.4. ifthetestingmateria1contentisexcessive1yhigher(Thesamp1eOD
14、isbiggerthanthefirststandardwe11),p1easedi1uteSamp1e(n-fo1d),P1easedi1uenteandmu1tip1iedbythedi1utionfactor,(n5).5. C1osurep1atemembraneon1y1imitsthedisposab1euse,toavoidcross-contamination.6. Thesubstrateevadethe1ightpreservation.7. P1easeaccordingtouseinstructionstrict1y,Thetestresu1tdeterminationmusttakethemicrotiterp1atereaderasastandard.8. A11samp1es,washingbufferandeachkindofrejectshou1daccordingtoinfectivemateria1process.9. Donotmixreagentswiththosefromother1ots.Storageandva1idity1. Storage:2-8.2. va1idity:sixmonths