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Some Aspects on Preconcentration for Neutron Activation Analysis
Author(s) -
Yeh Si Jung,
Lo Jem Mau,
Wang E. L.
Publication year - 1984
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.198400018
Subject(s) - chemistry , neutron activation analysis , thallium , neutron activation , metal , radiochemistry , trace (psycholinguistics) , trace amounts , bismuth , trace metal , nuclear chemistry , inorganic chemistry , neutron , organic chemistry , alternative medicine , pathology , quantum mechanics , medicine , physics , philosophy , linguistics
A preconcentration method incorporated with neutron activation analysis was developed for the accurate determination of trace metals in biological and environmental samples. Bismuth diethyldithiocarbamate, thallium diethyldithiocarbarnate, and ammonium pyrrolidinedithiocarbamate were used as the preconcentration agents for three groups of metals. Trace metals were enriched and interfering elements such as Na, Br, P. K. etc. were removed simultaneously during the preconcentration process so that the sensitivity for each metal was greatly improved. Optimal conditions for sample digestion, group preconcentration of trace metals and neutron activation analysis of biological and environmental samples were discussed.