Dibenzylammonium and Sodium Dibenzyldithiocarbamates as Precipitants for Preconcentration of Trace Elements in Water for Analysis by Energy Dispersive X-ray Fluorescence

Article abstract of DOI:10.1021/ac00243a013

Precipitation with combined dibenzylammonium dibenzyldithiocarbamate and sodium dibenzyldithiocarbamate at pH 5.0 can be used to separate 22 trace elements from water.Membrane filtration of the precipitate yielded a thin sample, suitable for analysis by energy dispersive X-ray fluorescence spectrometry.Alkalis, alkaline earths, lanthanides, and halides were not precipitated, permitting a clean separation of trace elements from the macro constituents of drinking water and drinking water supplies.Methods are given for preparation of reagents of higher purity than previo usly described.