摘要
在φ（Ｈ２ＳＯ４）＝５６％硫酸介质、重铬酸钾的氧化体系中，以钼酸铵、硫酸铝钾为助催化剂，可减少催化剂硫酸银的用量，消解１５ｍｉｎ即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，避免了汞盐的污染。工业废水加标回收率在９７％～１０１％之间。
N,N-dimethylformamide was detected by gas chromatography with FID and PEG-20 capillany column.The results obtained by this method were the same as those determined by spectrophotometry.
出处
《环境监测管理与技术》
1996年第5期28-30,共3页
The Administration and Technique of Environmental Monitoring
