吴斌才等合成了镁的新型显色剂——兴多偶氮氯膦I(Khimduchlorophosphonazo-I),并研究了其与镁的显色反应。兴多偶氮氯膦-I既保留了偶氮氯膦-I的结构骨架,又引进了具有掩蔽功能的分析基团—CH_2—N,故试剂对镁的选择性进一步提高。本文在吴斌才等人的工作基础上试验了镁与该显色剂显色的基本条件。提出了在pH为 Wu Bin and other synthesis of a new magnesium reagent - Xing poly chlorophosphonazo I (Khimduchlorophosphonazo-I), and studied its color reaction with magnesium. Hing poly-chlorophosphonazo-I not only retains the structural skeleton of chlorophosphonazo-I, but also introduced a masking function analysis group -CH_2-N, so the selectivity of the reagent to magnesium further improved. Based on the work of Wu Bincai et al., This paper tested the basic conditions for the color development of magnesium and the developer. Proposed at pH =