Determination of Se(IV) in water by neutron activation analysis after coprecipitation of metal dibenzyldithiocarbamate with phenolphthalein |
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| Authors: | A. I. Saleh J. R. W. Woittiez G. D. Wals H. A. Das |
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| Affiliation: | (1) Netherlands Energy Research Foundation, P.O. Box 1, 1755 ZG Petten (N. H.), (The Netherlands);(2) Present address: Tajoura Nuclear Research Centre, Tripoli, Libya |
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| Abstract: | A neutron activation analysis method for the determination of Se(IV) in natural waters is described. It is based on the coprecipitation of the metal dibenzyldithiocarbamate with phenolphthalein. The precipitate is collected on 0.45  m membrane filters and selenium is determined by instrumental neutron activation. A Se(IV) radiotracer (75Se, T=120 d) was used to establish optimum conditions and to evaluate the chemical yield. Samples of sea and canal water were analyzed. |
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