Determination of Trace Amounts of Se with Oscillopolarography
痕量硒的示波极谱测定

In 0. 60mol/L acetic acid medium, the complex of Se (IV) and sulfanilic acid exhibits a sensitive and selective oscillopolarographic wave at - 0. 63 V vs. SCE. This provides a new oscillopolarographic method for the determination of Se in the range of 0. 3-80ng/ml. The detection limit is achieved at 0. 15ng/ml. Se in real samples was analysed by this method, with satisfactory results.