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本文系统研究了用硒化亚铜浊度法直接测定硒的条件.经电解锰中硒和铅矿中微量硒实样测定表明,本法结果与极谱法及其它方法结果一致.本法快速简便,可测0.01mgSe.一、试剂硒标准溶液;20μg/ml;柠檬酸铵:30%;铜溶液;500μg/ml;聚乙烯醇:0.2%;抗坏血酸:1%;无硒锰溶液:50mg/ml.二、操作手续
This paper systematically studied the selenium cuprous selenide turbidimetric method for the determination of conditions.Electrolytic manganese in the selenium and lead in the micro-selenium in real samples showed that the results of this method and the polarographic method and other methods results are consistent with the rapid Simple, measurable 0.01mgSe. Reagent Selenium standard solution; 20μg / ml; Ammonium citrate: 30%; Copper solution; 500μg / ml; Polyvinyl alcohol: 0.2%; Ascorbic acid: 1% / ml. Second, the operating procedures