Flow injection-chemiluminescence determination of puerarin in pharmaceutical preparations

被引：18
作者：
Zhang, QL [1 ]
Myint, A [1 ]
Liu, LJ [1 ]
Ge, XW [1 ]
Cui, H [1 ]
机构：
[1] Univ Sci & Technol China, Dept Chem, Hefei 230026, Anhui, Peoples R China
来源：
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS | 2004年 / 36卷 / 03期
关键词：
flow injection; chemiluminescence (CL); cerium(IV); rhodamine; 6G; puerafin;
D O I：
10.1016/j.jpba.2004.07.036
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Strong chemiluminescence was observed when cerium(IV) reacted with rhodamine 6G in sulfuric acid medium in the presence of puerarin. This phenomenon has been utilized to design a sensitive and selective flow injection-chemiluminescence method for the determination of puerarin. Under the optimum conditions, the proposed procedure has a linear range between 1.3 x 10(-9) and 8.0 x 10(-7) g/mL, with a detection limit of 8.4 x 10(-10) g/mL puerarin and a relative standard deviation of 1.86% (n = 11) at 5.0 x 10(-8) g/mL puerarin. The method was successfully applied to the determination of puerarin in pharmaceutical preparations. The mechanism of this chemiluminescence reaction has been proposed. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：587 / 592
页数：6
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