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Rapit Determination Of COD Without Mercurate
Author(s): 
Pages: 110-111
Year: Issue:  6
Journal: ENVIRONMENTAL SCIENCE AND MANAGEMENT

Keyword:  化学需氧量无汞盐快速;
Abstract: 在以56%硫酸为介质、重铬酸钾的氧化体系中,用钼酸铵、硫酸铝钾为助催化剂,可减少催化剂硫酸银的用量,消解15min便可测定水中化学需氧量.用硝酸银溶液代替硫酸汞去除水样中氯离子干扰,避免了汞盐的污染.工业废水的加标回收率在97%~101%之间,有较好的准确度.
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