Abstract
A novel method has been developed and validated for the analysis of six phenoxy acid herbicides (dicamba, 2,4-D, MCPA, dichlorprop, mecoprop and MCPB) in surface and ground waters. After solid-phase extraction on Isolute ENV+, analysis was by LC-MS-MS without using derivatization. The limits of quantitation are from 0.01 to 0.05 μg L−1. Average recoveries in method validation (spiking levels: limit of quantitation and 10 times limit of quantitation) ranged from 76.5 to 108.3%, with relative standard deviations of < 13.6%. The method was applied to real surface and ground water samples which gave average recoveries (spiking level: 0.1 μg L−1) ranging from 82.7 to 94.8%, with relative standard deviations of < 19.3%.
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Revised: 9 January and 20 March 2006
Presented at the 6th Balaton Symposium on High-Performance Separation Methods, Siófok, Hungary, September 7–9, 2005
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Majzik, E.S., Tóth, F., Benke, L. et al. SPE-LC-MS-MS Determination of Phenoxy Acid Herbicides in Surface and Ground Water. Chroma 63 (Suppl 13), S105–S109 (2006). https://doi.org/10.1365/s10337-006-0786-x
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DOI: https://doi.org/10.1365/s10337-006-0786-x