新的不对称变色酸双偶氮衍生物的合成及其结构对稀土、钍、铋显色反应的影响张华山，张军锋，黎心懿（武汉大学化学系，武汉，４３００７２）关键词变色酸双芳基偶氮衍生物，稀土，钍，铋，分光光度法变色酸双偶氮衍生物是光度法测定稀土、钍等金属的重要显色剂。其中多卤... Synthesis of New Asymmetric Chromotropic Acid Bisazo Derivatives and Their Structure Effects on the Color Reaction of Rare Earth, Thorium and Bismuth ZHANG Huashan, ZHANG Junfeng, LI Xinyi (Department of Chemistry, Wuhan University, Wuhan 430072) Azo derivatives, rare earth, thorium, bismuth, spectrophotometric chromotropic acid disazo derivatives spectrophotometric determination of rare earth, thorium and other metals, an important developer. One of the more halogen ...