【摘要】 本文介绍了SeSO₃^2--IO₃^极谱催化波测定海洋沉积物中的硒。选定的底液最宜条件为:1％Na₂SO₃-0.7％KIO₃-4％NH₄F-12％NH₄OH（V/V）-1％（NH₄）₃C₆H₅O₇-0.4％EDTA。方法简单、快速、灵敏。其最低检出含量为0.04μg/g,回收率94—105％,相对标准偏差小于9.4％。更多还原

【Abstract】 A method for determining selenium in marine sediments with the SeS032--IO-polarographic catalytic wave is described. The supporting electrolyte contains 1% Na2SO3-0.7% KIO3-4%NH4F-12% NH4OH(V/V)-1% (NH4)3C6H5O7-0.4% EDTA. This method is simple, rapid and sensitive. The minimum contant of selenium that can be determined with this method is 0.04礸/g.The average recovery rate of selenium in samples were 94-105% and the relative standard deviation <9,4%.更多还原