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1 前言在微量镉的光度法测量中,常用的显色剂有双硫腙和镉试剂。用光度法测定微量镉的文章不少,其中报道摩尔吸光系数e达10~5以上的高灵敏度显色反应的文章令人注目。
1 Introduction In the photometric determination of trace amounts of cadmium, dithizone and cadmium reagents are commonly used as color-developing agents. There are a lot of articles about the determination of trace cadmium by photometry, and the articles that report the high sensitivity color reaction with the molar absorption coefficient e up to 10 ~ 5 are noticeable.