Screening Method for Nine Sulfonylurea Herbicides in Soil and Water by Liquid Chromatography with Ultraviolet Detection
- 16 January 1998
- journal article
- Published by American Chemical Society (ACS) in Journal of Agricultural and Food Chemistry
- Vol. 46 (2) , 514-519
- https://doi.org/10.1021/jf9705431
Abstract
An analytical method is described for the preliminary analysis of azimsulfuron, chlorimuron-ethyl, chlorsulfuron, ethametsulfuron-methyl, flupyrsulfuron-methyl, metsulfuron-methyl, sulfometuron-methyl, thifensulfuron-methyl, and tribenuron-methyl in soil (LOQ = 1 ppb) and in water (LOQ = 0.1 ppb). HPLC chromatograms show little to no response for control samples when compared to the lowest fortifications. Average recoveries at the limit of quantitation and above are in the 70-120% range, with relative standard deviations of <20%. Extraction efficiency experiments demonstrated the ability of this method to extract sulfonylureas from soil samples. This method is suitable for screening of samples; however, LC/MS would be required for a definitive confirmation.Keywords
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