Determination of ultramicro amounts of selenium by gas chromatography with electron-capture detection.
Formation of piazselenols by the reaction of Se(IV) with 1,2-diaminobenzene and its derivatives, followed by solvent extraction and gas chromatography with electron-capture detection, provides the most sensitive means of determining selenium. By suitable chemical manipulation, the method can be used for Se(-II), Se(O), Se(IV) and Se(VI). Applications to a wide variety of samples are reviewed.
Tôei
K
K
Department of Chemistry, Faculty of Science, Okayama University, 3-1-1 Tsushima-naka, Okayama-shi 700, Japan.
Shimoishi
Y
Y