催化荧光法测定环境水样中痕量对苯二酚  

Determination of trace hydroquinone in water samples by catalytic fluorescence

作　　者：刘萍[1,2] 任有良[1,2] 樊雪梅[1,2] 刘丹丽[1,2] 常亮亮[1,2] 

机构地区：[1]商洛学院化学工程与现代材料学院,商洛726000 [2]陕西省尾矿资源综合利用重点实验室,商洛726000

出　　处：《分析仪器》2016年第2期34-37,共4页Analytical Instrumentation

基　　金：商洛学院自然科学基金项目(13SKY006)资助

摘　　要：在H2SO4介质中,痕量对苯二酚对溴酸钾氧化二氯荧光素（DCF）的反应具有显著的催化作用,据此建立了催化荧光法测定水样中痕量对苯二酚的新方法。在最佳测试条件下,荧光强度降低值（△F）与对苯二酚浓度在0-1.0μg/mL范围内呈良好的线性关系,方法的检出限为0.037μg/mL。该方法可用于环境水样中痕量对苯二酚的测定,结果满意。The method is based on the catalytic effect of hydroquinone on oxidation of dichlorofluorescein by potassium bromate in sulfuric acid medium.Under the optimum testing conditions,the hydroquinone concentration with the decrease of fluorescence intensity values（△F）demonstrate a good linear relationship in the range of 0-1.0μg/mL.The detection limit is 0.037μg/mL.It can be used for the determination of hydroquinone in water samples with satisfactory results.

关 键 词：催化荧光法 二氯荧光素 对苯二酚 

分 类 号：O657.3[理学—分析化学] X832[理学—化学]