Record Display for the EPA National Library Catalog
RECORD NUMBER: 465 OF 2075
|OLS Field Name||OLS Field Data|
|Main Title||Dibenzylammonium and Sodium Dibenzyldithiocarbamates as Precipitants for Preconcentration of Trace Elements in Water for Analysis by Energy Dispersive X-Ray Fluorescence.|
|Author||Moore, Robert V. ;|
|CORP Author||Environmental Research Lab., Athens, GA.|
|Additional Subjects||Water analysis ; Precipitation(Chemistry) ; Trace elements ; Potable water ; Separation ; X ray spectroscopy ; X ray fluorence ; Chemical analysis ; Water pollution ; Carbamates ; Reprints ; Water pollution detection ; Carbamic acid/(ammonium-salt)-bis(dibenzyl)-dithio ; Carbamic acid/dibenzyl-dithio-(sodium-salt)|
Precipitation with combined dibenzylammonium dibenzyldithiocarbamate and sodium dibenzyldithiocarbamate at pH 5.0 can be used to separate 22 trace elements from water. Membrane filtration on 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 previously described.