Title Of Article :
Determination of Fe, Cr, Pb trace elements by atomic absorption spectrometry after co precipitation with Cadion
Abstract :
A method for the determination of trace amounts of iron(III), lead (II), chromium (III) is described, that combines atomic absorption spectrometry-cadion coprecipitation. The analitical parameters including amount of cadion, sample volume, matrix effects, waiting time after and before centrifuge, etc were investigated on the recoveries of analyte ions. The effects of centrifuge periods were also examined. The dedection limits were for Pb, Fe, Cr; in order 0.300, 0.090, 0.060 mgL^−1. The validation of the presented coprecipitation method was performed by the analysis of standart referance material. The method was applied to the determination of analytes in real samples including some tap water in Kayseri and Sivas, lake and crater lake,barrage,etc. And good results were obtained.(relative standart deviations 5%, recoveries 95 %)
