流动注射化学发光法测定河水中对苯二酚  

FI-Chemiluminescence Determination of Hydroquinone in River Water

作　　者：王术皓[1] 杜凌云[1] 魏新庭[1] 庄惠生[2] 

机构地区：[1]聊城大学化学化工学院,聊城252059 [2]东华大学环境科学与工程学院,上海200051

出　　处：《理化检验（化学分册）》2007年第3期193-195,共3页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

基　　金：国家自然科学基金(20277005);山东省中青年学术骨干和学科带头人培养基金资助

摘　　要：在碱性介质中,高碘酸钾氧化鲁米诺产生化学发光,对苯二酚对此反应具有极强的增敏作用,据此建立了鲁米诺-高碘酸钾-对苯二酚化学发光体系测定对苯二酚的方法。对苯二酚溶液浓度在1.0×10^-8～1.5×10^-7mol·L-1范围内与化学发光强度呈线性关系,检出限为8.5×10^-9mol·L^-1,用于河水中对苯二酚的测定并测得其回收率在93.4%～104.4%之间。探讨了对苯二酚的增敏机理。Based on the sensitization effect of hydroquinone on the chemil （CL） reaction between luminol and potassium periodate in an alkaline medium of 0. 10 mol · L^-1 KOH, a chemiluminescence method for the determination of hydroquinone was proposed. Linear relationship between the magnitude of CL-intensity and the concentration of hydroguinone was obtained in the range of 1.0 × 10^-8 -1.5 × 10^-7 mol · L^-1, with a detection limit of 8. 5× 10^-9 mol·L^-1. In its application to the determination of hydroquinone in water, values of recovery found by standard addition method were in the range of 93. 4%- 104. 4%. Mechanism of the sensitization effect on the CL-reaction was also discussed.

关 键 词：流动注射 化学发光 鲁米诺 对苯二酚 增敏效应 水样 

分 类 号：O657.39[理学—分析化学]