Flow-injection chemiluminescence determination of tryptophan using galangin-potassium permanganate-polyphosphoric acid system

被引：0

作者：

Hui Chen Li Li Min Zhou Yong Jun Ma College of Chemistry and Chemical Engineering Gansu Key Laboratory of Polymer Materials Northwest Normal University Lanzhou China ^{[730070
]}

机构：

来源：

Chinese Chemical Letters | 2008年 / 02期

关键词：

Chemiluminescence; Flow-injection; Galangin; Potassium permanganate; Tryptophan;

D O I：

暂无

中图分类号：

O631 [高分子物理和高分子物理化学];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A high sensitive flow-injection chemiluminescence (FI-CL) method for the determination of tryptophan has been developed. The method is based on the chemiluminescence reaction of galangin-potassium permanganate-tryptophan in polyphosphoric acid (PPA) media. Under the optimized conditions, tryptophan was determined in the range 0.05-10 μmg/mL with the detection limit (3σ) of 5.0 ×10à3 μmg/mL. The relative standard deviation (RSD) was 1.0% for 11 replicate determinations of 1.0 μmg/mL tryptophan. Three synthetic samples were determined selectively with recoveries in the range from 99.6% to 102.0% in the presence of other amino acids.

引用

页码：203 / 206

页数：4

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