DETERMINATION OF SELENIUM IN MARINE SEDIMENTS BY GAS CHROMATOGRAPHY WITH ELECTRON CAPTURE DETECTION.
Selenium concentrations in marine sediments were determined by gas chromatography with electron capture detection. The sediments were dissolved in an acid mixture. Selenium was converted into 5-nitroplazselenol, extracted into toluene, and introduced into the chromatograph. The detection limit was 0. 2 pg of Se injected or 30 ng of Se/g of sediment. The standard deviation was about 7%.
Siu, K.W. Michael and Berman, Shiere S.. (1983). DETERMINATION OF SELENIUM IN MARINE SEDIMENTS BY GAS CHROMATOGRAPHY WITH ELECTRON CAPTURE DETECTION.. Analytical Chemistry, 55 (9), 1603-1605.