Record Display for the EPA National Library Catalog
RECORD NUMBER: 35 OF 197| Main Title | Dibenzylammonium and Sodium Dibenzyldithiocarbamates as Precipitants for Preconcentration of Trace Elements in Water for Analysis by Energy Dispersive X-Ray Fluorescence. | |||||||||||
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| Author | Moore, Robert V. ; | |||||||||||
| CORP Author | Environmental Research Lab., Athens, GA. | |||||||||||
| Year Published | 1981 | |||||||||||
| Report Number | EPA-600/J-82-162; | |||||||||||
| Stock Number | PB82-258617 | |||||||||||
| 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) | |||||||||||
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| Collation | 5p | |||||||||||
| Abstract | 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. |