PILOT SURVEY FOR ATRAZINE AND TOTAL CHLOROTRIAZINES IN ESTUARINE WATERS USING MAGNETIC PARTICLE BASED IMMUNOASSAY AND GAS-CHROMATOGRAPHY NITROGEN/PHOSPHORUS DETECTION

被引：44
作者：
GASCON, J [1 ]
DURAND, G [1 ]
BARCELO, D [1 ]
机构：
[1] CSIC,CID,DEPT ENVIRONM CHEM,E-08034 BARCELONA,SPAIN
来源：
ENVIRONMENTAL SCIENCE & TECHNOLOGY | 1995年 / 29卷 / 06期
关键词：
D O I：
10.1021/es00006a017
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The determination of atrazine in estuarine waters in the presence of the common cross-reactants deethylatrazine, deisopropylstrazine, and simazine has been investigated using direct rapid pesticide immunodetection (RaPID) magnetic particle-based solid-phase ELISA. Different parameters such as least detectable dose, 50% inhibition concentration, and percentage of cross-reactivity, determined by estimating the amount of compound required to displace 50% of the enzyme conjugate to the amount of atrazine, were calculated. Estuarine water samples containing various chlorotriazine herbicides from a pilot monitoring program (with levels varying from 0.008 to 0.326 mu g/L) were compared by using the RaPID assay and gas chromatography-nitrogen/phosphorus detection (GC-NPD). Both analytical methods showed good correlation for atrazine and total chlorotriazines for most of the estuarine water samples analyzed. Gas chromatography/mass spectrometry (GC/MS) was used for confirmation purposes, and false positives were detected.
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页码：1551 / 1556
页数：6
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