摘要
研究表明赖氨酸与甲酚红在水溶液中可形成紫色络合物,溴化十六烷基三甲基胺(CTMAB)对该络合物有显著的增敏增稳作用。据此建立了胶束增敏光度法测定赖氨酸含量的新方法,方法的线性范围为0.028-0.175μg/mL,检出限为0.015μg/mL。该法用于药物制剂中赖氨酸含量的测定,回收率在98.0%~101.7%之间。
The spectrophotometric characteristics of charge-transfer complex between lysine and cresol red have been studied. The results indicated that the spectrophotometric signal was enhanced and stabilized greatly by CTMAB. Based on the above results, a new method of sensitized spectrophotometry using the micellar system for the trace analysis of lysine has been developed. The linear range was 0. 028-0. 175μg/mL and the detection limit was 0. 015 μg/mL.
出处
《分析科学学报》
CAS
CSCD
2008年第3期353-355,共3页
Journal of Analytical Science
基金
山西省自然科学基金(No.20051022)
关键词
赖氨酸
甲酚红
荷移络合物
分光光度法
胶束介质
Lysine
Cresol Red
Charge-transfer complex
Spectrophotometry
Micellar medium