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Determination of dipyridamole using TCPO–H2O2 chemiluminescence in the presence of silver nanoparticles

✍ Scribed by Lijuan Wang; Yuhai Tang

Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
747 KB
Volume
26
Category
Article
ISSN
1522-7235

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✦ Synopsis

ABSTRACT

The method is based on the fact that dipyridamole can enhance the chemiluminescence (CL) emission from the redox reaction of bis (2,4,6‐tricholorophenyl) oxalate (TCPO) with H~2~O~2~ in the presence of silver nanoparticles (AgNPs). The CL reaction mechanism was discussed. The effect of concentrations of TCPO, H~2~O~2~, AgNPs and pH value on the CL reaction were investigated. Under the optimum conditions, the linear dynamic range was 1.0–1000 × 10^−9^ g/mL and the detection limit (3__σ__) was 9 × 10^−10^ g/mL. The relative standard deviation (RSD) was 4.8% for 1.0 × 10^−9^ g/mL dipyridamole (n = 7). The proposed method has been successfully applied to the determination of dipyridamole tablets and the recovery was 99–103%. Copyright © 2011 John Wiley & Sons, Ltd.

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