2003•Rock and Mineral AnalysisRequires access
Rapid Analysis of Arazine in Soil and Water Samples by Solid- Phase Extraction and High Performance Liquid Chromatography
Wen Xie
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Abstract
An improved HPLC method was developed for the determination of atrazine in soil and water samples. The method involves an initial extraction of the soil samples with water. Sep pak C 18 SPE cartridges were used to concentrate atrazine from both soil extraction and water samples and then eluted by air displacement of 1.5～2 mL of methanol. Atrazine was analyzed by a reversed phase high performance liquid chromatography using a column of Nova Pak C 18 bonded silica with methanol water as a mobile phase. Detection wavelength was 222 nm. The average recoveries of spiked analytes were fall within 87.0%～93.0% and 97.3%～103.2% for soil and water samples respectively.The detection limit is 0.01 ng for atrazine. The detection level of atrazine is 1.5 ng/g in soil and 0.03 μg/L in water. The method has been applied to the determination of atrazine residue in soil and water samples. And it can be used in monitoring atrazine pollution in environment.