DETERMINATION OF THE PHENYLUREA HERBICIDE LINURON AND ITS METABOLITES IN ENVIRONMENTAL-SAMPLES BY HPLC WITH SERIAL ULTRAVIOLET AND AMPEROMETRIC DETECTION

被引:16
作者
HENZE, G [1 ]
MEYER, A [1 ]
HAUSEN, J [1 ]
机构
[1] UNIV TRIER,ANORGAN & ANALYT CHEM ABT,W-5500 TRIER,GERMANY
来源
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1993年 / 346卷 / 6-9期
关键词
D O I
10.1007/BF00321287
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Procedures were developed for the determination of the herbicide linuron and its main metabolites using reversed-phase high performance liquid chromatography with serial ultraviolet-amperometric detection. For the application to water and soil analysis solid-phase extraction with cyclohexyl cartridges was found to be useful for the separation and enrichment of these compounds at trace level. By amperometric detection at + 1.3 V down to approximately 0.5 ng of the tested metabolites could be determined. This is about 5-times more sensitive than the ultraviolet detection by the selected wavelength of 247 nm. Only for linuron the UV-detection proved to be more sensitive under the described conditions; the detection limit was found to be 5 ng.
引用
收藏
页码:761 / 765
页数:5
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