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在火焰原子吸收法中普遍使用各种络合剂,以提高灵敏度和选择性。Komarek和Sommer综合评述了有机络合剂在原子吸收测定中的作用和增感机理。周执明等人报导了双络合剂在原子吸收法测镱时的增感效应。本文把双络合剂用于测定铬,研究了影响双络合剂增感效应和消除干扰的各种条件,建立了电镀厂废水和污泥中铬的分析方法。 一、试剂、仪器及工作条件
In the flame atomic absorption method commonly used in various complexing agents, to improve the sensitivity and selectivity. Komarek and Sommer reviewed the role of organic complexing agents in the atomic absorption spectrometry and their sensitization mechanisms. Zhou Chih-ming, who reported the double-complexing agent in the atomic absorption spectrometry ytterbium sensitization effect. In this paper, double complexing agent was used to determine chromium, and various conditions that affected the sensitization effect and interference of double complexing agent were studied. The analytical method of chromium in electroplating wastewater and sludge was established. First, reagents, equipment and working conditions