LiquidReadyReagent;IncludesHomogenousAssayforRedWine.
TheTartaricAcidtestkitisarapid,simple,reliableandaccuratemethodforthespecificmeasurementandanalysisoftartaricacidinwine,fruitjuiceandothermaterials.Thiskitincludesahomogenousassayforredwinethatisamenabletoautomation.Suppliedasa“readytouse”liquidstableformulationthatissuitableformanual,auto-analyserandmicroplateformats.
Suitableformanual,auto-analyserandmicroplateformats.
DeterminationoftheComplexingCapacityofWineforZnUsingtheAbsenceofGrADIentsandNernstianEquilibriumStrippingTechnique.
Chito,D.,Galceran,J.,Companys,E.&Puy,J.(2013).JournalofAgriculturalandFoodChemistry,61(5),1051-1059.
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ReadAbstract
Thecomplexingcapacityofsynthetic(0.011Mtartratein13.5%ethanol)andrealwine(
RaimatAbadia)intitrationswithaddedtotalZnconcentrationsupto0.03MhasbeendeterminedfollowingthefreeZnconcentrationswithAGNES(absenceofgradientsandNernstianequilibriumstripping)technique.Acorrectiontofindthepreconcentrationfactororgain(Y
1)reallyappliedateachoneoftheionicstrengthsreachedduetoZnadditionsalongthetitrationhasbeenapplied.ThestandardimplementationofAGNEStorealwineledtotheobservationoftwoanomalousbehaviors:(a)anincreasinglynegativecurrentinthedepositionstage(labeledas“HER”effect)and(b)aminimuminthecurrentsofthestrippingstageplot(labeledasthe“dip”effect).ApracticalstrategytoapplyAGNESavoidingthedipeffecthasbeendevelopedtoquantifyproperlyfreeZnconcentrations.ThevandenBerg–Ružic–Leelinearizationmethod(assumingtheexistenceofjust1:1complexes)hasbeenadaptedtoconsiderthedilutioneffectandtheionicstrengthchanges.Aggregatedst
ABIlityconstantsandtotalligandconcentrationshavebeencalculatedfromsyntheticandwinetitrationdata.Thefoundcomplexingcapacityinthestudiedwine(C
T,L=0.0179±0.0007M)indicatesthecontributionofligandsotherthantartrate(whichisconfirmedtobethemainone).
ColourimetricmethodforthedeterminationofTartaricAcid
inwine,fruitjuiceandothermaterials
Principle:
TheTartaricacidassayisbasedonthereactionprinciplesbetween
tartaricacidandvanadate
Kitsize: 200assays(manual)/2000(microplate)
/2000(auto-analyser)
Method: Spectrophotometricat505nm
Totalassaytime: ~5min
Detectionlimit: ~108mg/L
Applicationexamples:
Wine,fruitjuiceandothermaterials
Methodrecognition:
Usedwidelyinthewineindustry
Advantages
- ”Readytouse”liquidstableformulation
- Verycompetitiveprice(costpertest)
- Allreagentsstablefor>1year
- Veryrapidreaction
- Mega-Calc™softwaretoolisavailablefromourwebsiteforhassle-freerawdataprocessing
- Standardincluded
- Suitableformanual,microplateandauto-analyserformats
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