5-[(偶氮苯基)偶氮]-8-氨基喹啉的合成、性质及其应用的研究  

Synthesis, Properties and Applications of 5-[(a-zophenyl)azo]-8-Aminoquinoline

作　　者：杨桂法 于正英[1] 俞汝勤[1] 

机构地区：[1]湖南大学化学化工系,长沙410082

出　　处：《分析试验室》1992年第5期24-25,29,共3页Chinese Journal of Analysis Laboratory

摘　　要：本文报道了新试剂5-[(偶氮苯基)偶氯]-8氨基喹啉的合成方法。研究了该试剂的理化性质,分析性能及其与钯显色反应的条件。从而拟定了直接分光光度法测定微量钯的新方法,结果满意。In this paper, the conditions of the spectrophotometric determination of microamount of copper with 5-(p-methyl phenylazo)-8-amino quinoline (p-MPAQ) have been studied. Copper reacts with p-MPAQ in the presence of cationic surfactant CTMAB in a buffer solution of pH9.0～10.0 to form a red-brown complex. The molar absorptivity and Δλ equal to 3.62×10~4L·mol^(-1)·cm^(-1) and 117nm respective. Beer's law is obeyed in the range of 0～13μg Cu/10mL. This method has been applied to the determination of microamount of copper in aluminum alloys with sodium fluoride as a masking agent.

关 键 词：铜 分光光度法 表面活性剂 铝合金 

分 类 号：TG146.21[一般工业技术—材料科学与工程]