Flow Injection Chemiluminescence Determination of Paraquat using Luminol and Ag(III) Complex

被引：0
|
作者：
Liu, Fei [2 ]
Shi, Hongmei [2 ]
Xu, Xiangdong [2 ]
Kang, Weijun [2 ]
Li, Zhanhua [1 ]
机构：
[1] Hebei Med Univ, Basic Med Coll, Shijiazhuang 050017, Hebei Province, Peoples R China
[2] Hebei Med Univ, Sch Publ Hlth, Shijiazhuang 050017, Hebei Province, Peoples R China
来源：
ASIAN JOURNAL OF CHEMISTRY | 2011年 / 23卷 / 02期
关键词：
Ag(III)-Luminol system; Chemiluminescence; Paraquat determination; MECHANISM; ASSAY;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A novel flow injection chemiluminescence system is described for the determination of paraquat. The method is based on the fact that paraquat can enhanced the chemiluminescence intensities of Ag(III)-luminol in alkaline solution. The optimum conditions for the chemiluminescence emission are evaluated. Paraquat can be determined over the concentration range of 5.0 x 10(-6)-1.0 x 10(-3) M with a correlation coefficient of 0.999 and a detection limit of 2.0 x 10(-7) M (S/N = 3). The relative standard deviation for 11 repetitive determination of 2.0 x 10(-4) M paraquat is 1.01 To. The proposed method offers the potential advantages of high sensitivity, simplicity and rapidity for paraquat determination and the utility of this method is demonstrated by detecting paraquat in pesticide and vegetable samples.
引用
收藏
页码：795 / 798
页数：4
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