新试剂7-(苯并噻唑-2-偶氮)-8-羟基喹啉-5-磺酸与锌显色反应的研究  

STUDY ON THE COLOR REACTIONS OF A NEW REAGENT 7-(BENZOTHIAZDY1-2-AZO)-8-HYDROXYQUINOLINE-5-SULYFONIC ACID WITH ZINE

作　　者：张国文[1] 黄坚峰 

机构地区：[1]江西工业大学食工系

出　　处：《江西工业大学学报》1991年第2期75-80,共6页

摘　　要：本文报导了一种新的单偶氮类显色剂,7-(苯并噻唑-2-偶氮)-8-羟基喹啉-5-磺酸(简称ABQ)离解常数的测定,同时研究了该显色剂对金属锌离子光度测定的条件和样品中微量锌的测定,得出该配合物的最大吸收波长为590nm,ε=5.1×10~4l·mol^(-1)·(?)显色酸度范围在PH=3.20-4.50,锌离子浓度在0-6.5ug/25ml内符合比尔定律。The analytical properties of the titled reagent have been reported, The conditions for the spectrophotometric determination of zine using the reagent have been studied, The complex has masimum absorption at 590 nm and the molar absorptivity is 5.10×10~4, The range of acidity is PH 3.20-4.50, Some samples have been determined with satisfactory results using this reagents。

关 键 词：7-(苯并噻唑-2-偶氮)-8-羧基喹啉-5-磺酸 锌 光度分析 

分 类 号：O614.241[理学—无机化学] O657.3[理学—化学]