Abstract
This study determined trimethylselenonium ion [TMSe, (CH3)3Se+] and total organic selenium cationic species urinary excretion values for healthy human subjects and Sprague-Dawley rats fed regular diets. The only source of TMSe was from the endogenous selenium body pool. Total selenium concentration, in urine was determined by instrumental neutron activation analysis. TMSe and total selenium cationic species concentrations and percent of total selenium urine excretion were determined by chemical neutron activation analysis and coupled anion-cation exchange chromatography and anion-exchange chromatography, respectively. Within experimental error, mean values for TMSe and cationic species as percent selenium were comparable for both human subjects and Sprague-Dawley rats. This study suggested that TMSe excreted in urine by healthy human subjects and Sprague-Dawley rats fed a normal diet is not a minor but a general metabolite of selenium ingested in a normal diet.
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Blotcky, A.J., Claassen, J.P. & Rack, E.P. Determination of human and Sprague-Dawley rat trimethylselenonium ion and total selenium urine concentrations from endogenous body selenium pool by neutron activation analysis. Journal of Radioanalytical and Nuclear Chemistry, Articles 161, 11–20 (1992). https://doi.org/10.1007/BF02034875
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DOI: https://doi.org/10.1007/BF02034875