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DOI: 10.1039/A604950H (Paper) Reference Section for: J. Anal. At. Spectrom., 1997, 12, 85-89

Comparison of the Suitability of Various Atomic Spectroscopic Techinques for the Determination of Selenium in Human Whole Blood

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O. MESTEK, M. SUCHÁNEK, Z. VODIČKOVÁ, B. ZEMANOVÁ and T. ZÍMA

Abstract

A method was developed for the determination of selenium in human blood by ICP-MS. The procedure involves sample dilution with Triton X-100 and HNO3 (1 ml of whole blood+1 ml of 1% Triton X-100+1.5 ml of 0.14 mol l-1 HNO3+0.2 ml of 5 mg l-1 In solution+water to 10 ml) and determination using the 77Se line. Standard samples were modified with a solution containing NaCl, Fe, Ca, Br, S, and K. No corrections were made for interferences from polyatomic ions. The applicability of the ICP-MS, ICP-OES, ETAAS and HGAAS techniques to the determination of Se in human blood was compared. Limits of detection (3s) of these methods were 6, 76, 14 and 8 µg l-1 Se, respectively. The ICP-MS method was found to be well suited to routine analysis.

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