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矿石中微量硒的极谱测定,一般采用溴化钠——硫酸——高氯酸底液;亚硫酸钠——碳酸钾底液和氢氧化铵——氯化铵底液。示波测定可测到1×10~(-6)～2×10~(-4)M 的硒。近来有资料介绍可在邻苯二胺底液中用镓盐催化硒和SeSO_3~(?)——KIO_4催化波测硒可提高灵敏度。
Ore trace selenium polarographic determination, the general use of sodium bromide - sulfuric acid - perchlorate bottom liquid; sodium sulfite - potassium carbonate and ammonium hydroxide - ammonium chloride bottom liquid. Oscillometric determination of selenium can be measured from 1 × 10 -6 to 2 × 10 -4 M. Recently there is information on the use of gallium-salt selenium and SeSO_3 ~ (?) - KIO_4 catalytic wave detection of selenium in o-phenylenediamine base solution can increase the sensitivity.