Applying magnesium hydroxide coprecipitation method for trace analysis to dialysis concentrate.
A magnesium hydroxide coprecipitation technique for determination of Cd, Co, Cu, Mn, Ni in dialysis concentrate is described. The analytes are concentrated from 10 ml of dialysis concentrate into 1 ml of 1 M HNO(3) and subsequently determined by graphite furnace atomic absorption spectrometry. Coprecipitation parameters and matrix effects are discussed. The precision, based on replicate analysis, is around 5% for the analytes, and recovery is quantitative, based on analysis of spiked samples and solutions including matrix components.
Elçi
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Chemistry Department, Art and Sciences Faculty, Erciyes University, 38039 Kayseri, Turkey.
Saraçoğlu
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