Determination of trace elements by inductively coupled plasma-atomic emission spectrometry (ICP-AES) after preconcentration on a support impregnated with piperidine dithiocarbamate

A procedure is developed for the determination of Cd, Co, Cr, Cu, Mn, Ni, Pb, and Zn in water by inductively coupled plasmaatomic emission spectrometry (ICP-AES) after preconcentration on a piperidine dithiocarbamate supported polyurethane foam. The sorbed elements are subsequently eluted with ii mol L-1 HNO3, and the acid eluates are analysed by ICP-AES. A 20-mL disposable syringe served as a chromatographic preconcentration column. The sorption recoveries of elements except Co and Cr were higher than 97%. The method is also applied for the analysis of natural water samples.