废水中痕量邻苯二酚的动力学荧光测定法  

Determination of Trace Catechol in Waste Water by Kinetic Fluorimetry

作　　者：齐文娟[1] 陈兰化[1] 

机构地区：[1]淮北煤炭师范学院化学与材料科学学院,安徽淮北235000

出　　处：《环境与健康杂志》2009年第9期823-825,共3页Journal of Environment and Health

摘　　要：目的研究废水中邻苯二酚的动力学荧光测定法。方法在稀硫酸介质中,邻苯二酚对钒(V)催化高碘酸钾氧化吡啰红Y具有显著的阻抑作用,催化反应速率的减慢与邻苯二酚的浓度呈线性关系。采用阻抑动力学荧光法,测定痕量邻苯二酚并研究了最佳反应条件。结果该方法测定邻苯二酚的线性范围为10.0～1500.0μg/L,检出限为7.8μg/L,RSD为2.42%～2.71%,加标回收率为98.3%～103.3%。结论该方法用于环境废水中邻苯二酚的测定,结果满意。Objective To establish a new kinetic fluorimetry method for the determination of trace catechol in waste water. Methods Trace catcchol inhibited the catalytic oxidation of pyronine Y by potassium periodate in the presence of vanadium （the catalyst） in H2SO4 medium. A linear relation appeared between the concentration of catachol and the changing of catalyzed reaction speed. A new inhibitory kinetic fluorimetry method for the determination of trace catechol in waste water was established. Results The linear range of determination was 10.0-1 500.0μg/L, and the detection limit was 7.8μg/L. The RSDs and recovery rates of the method were 2.42%-2.71%, and 98.3%-103.3% respectively. Conclusion This method is simple and sensitive for the determination of trace catecbol in waste water with satisfactory results.

关 键 词：废水 阻抑 动力学荧光法 邻苯二酚 吡啰红Y 

分 类 号：O657.3[理学—分析化学]