QUANTITATIVE ANALYSIS OF SEVERAL SELEN SPECIES IN SEAFOOD BY STRIPPING VOLTAMMETRY
This paper presents practical experiments to construct an extraction - separation - enrichment scheme for analyzing several electrochemical active Selenium species: selenite (Se(IV)), selenocystine (Se-Cyst), and dimethyldiselenide (DMDSe) in seafood by using Stripping Voltammetry and its application to real samples. Results showed that in Bummalo fish and tiger prawn, Se-Cyst was the highest fraction, Se(IV) was the next, and DMDSe was the lowest fraction. In squid, Se(IV) was not found. Fractions of Se-Cyst and DMDSe were highest in squid, then in Bummalo fish, and lowest in tigerprawn.