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Multiresidue determination of sulfonylurea herbicides by capillary electrophoresis for hydrolysis studies in water and sediments.
Anal Bioanal Chem. 1996 Dec; 356(8):508-11.AB

Abstract

Twelve sulfonylurea herbicides (bensulfuron-methyl, sulfometuron-methyl, ethametsulfuron-methyl, triasulfuron, tribenuron-methyl, nicosulfuron, chlorimuron-ethyl, thifensulfuron-methyl, primisulfuron-methyl, metsulfuron-methyl, chlorsulfuron, and amidosulfuron) were separated by free zone capillary electrophoresis with migration times less than 20 min. The additional simultaneous determination of the 2,3-dihydro-3-oxobenzisosulfonazole (saccharin) degradation product was possible after application of a temperature and voltage gradient. Detector responses (absorbances) at 239 and 220 nm were linear between 0.1 and 10.0 microg/ml. After extraction with acetonitrile, recoveries for the same concentration range from two different sediments were higher than 90% with variation coefficients lower than 16%. Dissociation constants of the sulfonylurea herbicides were determined.

Authors+Show Affiliations

National Exposure Research Laboratory, U.S. Environmental Protection Agency, 30605, Athens, GA, USA.No affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

15045218

Citation

Berger, B M., and N L. Wolfe. "Multiresidue Determination of Sulfonylurea Herbicides By Capillary Electrophoresis for Hydrolysis Studies in Water and Sediments." Analytical and Bioanalytical Chemistry, vol. 356, no. 8, 1996, pp. 508-11.
Berger BM, Wolfe NL. Multiresidue determination of sulfonylurea herbicides by capillary electrophoresis for hydrolysis studies in water and sediments. Anal Bioanal Chem. 1996;356(8):508-11.
Berger, B. M., & Wolfe, N. L. (1996). Multiresidue determination of sulfonylurea herbicides by capillary electrophoresis for hydrolysis studies in water and sediments. Analytical and Bioanalytical Chemistry, 356(8), 508-11.
Berger BM, Wolfe NL. Multiresidue Determination of Sulfonylurea Herbicides By Capillary Electrophoresis for Hydrolysis Studies in Water and Sediments. Anal Bioanal Chem. 1996;356(8):508-11. PubMed PMID: 15045218.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Multiresidue determination of sulfonylurea herbicides by capillary electrophoresis for hydrolysis studies in water and sediments. AU - Berger,B M, AU - Wolfe,N L, PY - 1995/09/28/received PY - 1996/01/05/revised PY - 1996/01/10/accepted PY - 1996/12/1/pubmed PY - 1996/12/1/medline PY - 1996/12/1/entrez SP - 508 EP - 11 JF - Analytical and bioanalytical chemistry JO - Anal Bioanal Chem VL - 356 IS - 8 N2 - Twelve sulfonylurea herbicides (bensulfuron-methyl, sulfometuron-methyl, ethametsulfuron-methyl, triasulfuron, tribenuron-methyl, nicosulfuron, chlorimuron-ethyl, thifensulfuron-methyl, primisulfuron-methyl, metsulfuron-methyl, chlorsulfuron, and amidosulfuron) were separated by free zone capillary electrophoresis with migration times less than 20 min. The additional simultaneous determination of the 2,3-dihydro-3-oxobenzisosulfonazole (saccharin) degradation product was possible after application of a temperature and voltage gradient. Detector responses (absorbances) at 239 and 220 nm were linear between 0.1 and 10.0 microg/ml. After extraction with acetonitrile, recoveries for the same concentration range from two different sediments were higher than 90% with variation coefficients lower than 16%. Dissociation constants of the sulfonylurea herbicides were determined. SN - 1618-2650 UR - https://www.unboundmedicine.com/medline/citation/15045218/Multiresidue_determination_of_sulfonylurea_herbicides_by_capillary_electrophoresis_for_hydrolysis_studies_in_water_and_sediments_ DB - PRIME DP - Unbound Medicine ER -
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