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Coupled-column liquid chromatography combined with postcolumn photochemical derivatization and fluorescence detection for the determination of herbicides in groundwater

✍ Scribed by Ahmed R. Mughari; María Martínez Galera; Piedad Parrilla Vázquez; Rosario Santiago Valverde

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
269 KB
Volume
30
Category
Article
ISSN
1615-9306

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✦ Synopsis

Abstract

This study examines the application of coupled‐column LC‐photochemically induced fluorimetry‐fluorescence detection (LC‐LC‐PIF‐FD), demonstrating its potential for the quantitative and selective detection of six herbicides, including propanil and the phenylureas monuron, monolinuron, chlorotoluron, diuron and neburon in groundwater samples. An AQUASIL C~18~ 50×4.6 mm^2^ id column coupled to an AQUASIL C~18~ 150×4.6 mm^2^ id column for analyte clean‐up and determination were used, respectively. A simple SPE with C~18~ cartridges was carried out, yielding average recoveries between 80 and 112% (n = 6) with RSDs between 0.5 and 9%. The LODs ranged from 0.0083 to 0.0833 μg/L in the groundwater samples.

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