摘 要: | ThereisarapidIyincreasingdemandforfastandreliableanalyticaImethodsforthedeterminationofchemicaIformsofelementSinenvironmentalsamples.IthaslongbeenknownthatCrfIII)isessentialformammals,however,CrfVI)isconsideredtobeatoxicagent[l].Theanalysisofchromateion(Vl)inenvironmentwaterisusuallyperformedbyusingspephotometryandatomicabsorption,p..tr...ny[2].TheformerneedsfairIylargeamountofsample,pretreatmenLandlonganalysistime.Thelaterequipmentismuchmoreexpensive.InpreviousreportS,chromateisnormaI1…
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