TY - JOUR T1 - Multiresidue method for determination of sulfonylurea herbicides in water by liquid chromatography with confirmation by capillary electrophoresis. AU - Hickes,H, AU - Watrous,M, PY - 1999/12/10/pubmed PY - 1999/12/10/medline PY - 1999/12/10/entrez SP - 1523 EP - 33 JF - Journal of AOAC International JO - J AOAC Int VL - 82 IS - 6 N2 - A liquid chromatographic method with comfirmation by capillary electrophoresis was used to determine 12 sulfonylurea herbicides in agricultural water. Analysis of 3 different water matrixes fortified at 2 levels gave good recoveries with adequate sensitivity at the 0.1 ppb level. A portion of the water was acidified with acetic acid and loaded onto an RP-102 solid-phase extraction (SPE) cartridge, and the extract was cleaned up on an alumina SPE cartridge. Extracts were desalted with an RP-102 SPE cartridge before instrumentation. Samples needing chemical filtration, such as pond water, required additional cleanup with a SAX SPE cartridge before the alumina cleanup step. Data were compiled for both determinative techniques and evaluated. SN - 1060-3271 UR - https://www.unboundmedicine.com/medline/citation/10589503/Multiresidue_method_for_determination_of_sulfonylurea_herbicides_in_water_by_liquid_chromatography_with_confirmation_by_capillary_electrophoresis_ DB - PRIME DP - Unbound Medicine ER -