A Sensitive Chemiluminescence Method for Determination of Hydroquinone and Catechol

Sensors

Lijun Zhao²  Baoqiang Lv¹  Hongyan Yuan¹  Zaide Zhou² 

[1] College of chemical engineering, Sichuan University, Chengdu, 610064, P. R. China;College of chemistry, Sichuan University, Chengdu, 610064, P. R. China

关键词: hydroquinone;    catechol;    chemiluminescence;    flow injection analysis;    determination;   

DOI  :  10.3390/s7040578

来源: mdpi

【 摘 要 】

A novel flow-injection chemiluminescence (CL) method has been developed for the determination of hydroquinone (HQ) and catechol (CT), based on their inhibition of the chemiluminescence reaction of luminol–KMnO₄–β-cyclodextrin (β-CD). It was found that β-cyclodextrin could effectively enhance the chemiluminescence produced from the reaction of luminol with KMnO₄ in basic media. The proposed method is simple, rapid, convenient and sensitive, has a linear range of 1–20 ng/mL for catechol with a detection limit of 0.4 ng/mL, and 1–10 ng/mL for hydroquinone with a detection limit of 0.1 ng/mL, respectively. The possible mechanism of the CL reaction is also discussed.

【 授权许可】

Unknown   
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