硝基安定经H_2O_2和光作用后的荧光特性及应用  

Intramolecular Proton Transfer of Sulfosalicylic Acid and the Determination of Sulfosalicylic Acid in Acidic Tin Electroplating Solution by Rapid Fluorimetry

作　　者：蔡维平[1] 欧阳耀国[1] 翁其香 陈猛 

机构地区：[1]厦门大学化学系材料和生命过程分析科学国家教委开放实验室

出　　处：《厦门大学学报（自然科学版）》1997年第4期599-603,共5页Journal of Xiamen University：Natural Science

基　　金：福建省自然科学基金

摘　　要：研究了弱碱性介质中，硝基安定经Ｈ２Ｏ２和紫外光共同作用后，反应产物的荧光特性（λｅｘ＝３５５ｎｍ，λｅｍ＝４６５ｎｍ），提出了一种测定硝基安定的新方法．标准曲线的浓度范围为０．２５～３．００ｍｇＬ－１．方法的相对标准偏差和检测限分别为２．３％和０．１３ｍｇＬ－１．可直接用于片剂中硝基安定含量的测定．Based on a great fluorescence Stokes shift of sulfosalicylic acid, which has been observed in the experiment, a mechanism of intramolecular proton transfer of sulfosalicylic acid has been described. A rapid fluorimetry for the determination of sulfosalicylic acid in acidic tin electrolating solution has been established. With this method, only 5 to 10 minutes were needed for one time of determination, and the determination was not interfered by the coexisting components in the electroplating solution. The relative standard deviation was less than 3%.

关 键 词：硝基安定 荧光分析法 安定药 双氧水 光作用 

分 类 号：R971.3[医药卫生—药品] R914.1[医药卫生—药学]