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A Comparative Study on the Determination of the Selenium in Biological Samples using 75Se and 77mSe Nuclides  

Moon, Jong-Hwa (HANARO Utilization Technology Development Division, Korea Atomic Energy Research Institute)
Kang, Sang-Hoon (HANARO Utilization Technology Development Division, Korea Atomic Energy Research Institute)
Kim, Sun-Ha (HANARO Utilization Technology Development Division, Korea Atomic Energy Research Institute)
Chung, Yong-Sam (HANARO Utilization Technology Development Division, Korea Atomic Energy Research Institute)
Kim, Young-Jin (HANARO Utilization Technology Development Division, Korea Atomic Energy Research Institute)
Publication Information
Analytical Science and Technology / v.18, no.1, 2005 , pp. 23-26 More about this Journal
Abstract
Se is well known as an anti-oxidant trace element and many customers are interested in an analysis and contents of Se in the various foodstuff samples. This study was aimed at establishig and comparing an analytical method for the determination of the Se in biological samples by neutron activation analysis using two nuclides, $^{75}Se$ and $^{77m}Se$. Keeping this objective, three NIST biological standard reference materials were chosen and the concentrations of the Se were determined under the prefixed analytical conditions such as the irradiation, decay and measurement time. The measured values by both analytical methods were evaluated with certified values. In addition, the detection limits and measurement uncertainty for the analytical results using $^{75}Se$ and $^{77m}Se$ were compared with each other.
Keywords
human nutrition and health; biological sample; selenium; NAA;
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