A sensitive chemiluminescence method for determination of hydroquinone and catechol

作者：Zhao Lijun; Lv Baoqiang; Yuan Hongyan; Zhou Zaide; Xiao Dan^*

来源：Sensors (Switzerland), 2007, 7(4): 578-588.

DOI：10.3390/s7040578

• hydroquinone
• catechol
• chemiluminescence
• flow injection analysis
• determination

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-beta-cyclodextrin (beta-CD). It was found that beta-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.

• 出版日期2007-4
• 单位四川大学