Determination of Trace Catechol in Waste Water by Kinetic Fluorimetry
- VernacularTitle:废水中痕量邻苯二酚的动力学荧光测定法
- Author:
Wenjuan QI
;
Lanhua CHEN
- Publication Type:Journal Article
- Keywords:
Waste water;
Inhibition;
Kinetic fluorescence;
Catechol;
Pyronine Y
- From:
Journal of Environment and Health
2007;0(09):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To establish a new kinetic fluorimetry method for the determination of trace catechol in waste water. Methods Trace catechol 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 10.0-1 500.0 ?g/L,and the detection limit was 7.8 ?g/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 catechol in waste water with satisfactory results.
