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Trace level determination of selected sulfonylurea herbicides in wetland sediment by liquid chromatography electrospray tandem mass spectrometry.
J Environ Sci Health B. 2010 Jan; 45(1):11-24.JE

Abstract

Sulfonylurea herbicides are widely used in crop production on the Canadian prairies and a portion of these herbicides applied to cropland are inevitably lost to surrounding aquatic ecosystems. Little is known regarding the presence of sulfonylurea herbicides in wetlands located amongst cropland. This paper describes a new analytical method for the extraction and the determination of seven sulfonylurea herbicides (thifensulfuron-methyl, tribenuron-methyl, ethametsulfuron-methyl, metsulfuron-methyl, rimsulfuron, nicosulfuron and sulfosulfuron) in wetland sediment. The method provided > 85% analyte recovery from fortified sediment for six of the seven sulfonylurea herbicides with a limit of quantification (LOQ) of 1.0 microg kg(-1). Tribenuron-methyl had significantly lower recovery compared to the other six sulfonylurea herbicides (LOQ = 2 microg kg(-1)). Mean recovery standard deviations were < 10%. This methodology was used to quantify sulfonylurea herbicide residues in sediment samples collected from prairie wetlands situated within the agricultural landscape of Saskatchewan and Manitoba, Canada. This is the first-known detection of sulfonylurea herbicide residues in prairie wetland sediments. Ethametsulfuron-methyl, sulfosulfuron and metsulfuron-methyl, the three most environmentally persistent of the seven sulfonylurea herbicides monitored in the surveillance component of this study, were most frequently detected in wetland sediment with mean concentrations ranging from 1.2 to 10 microg kg(-1).

Authors+Show Affiliations

Department of Soil Science, University of Saskatchewan, Saskatoon, SK, Canada. dani.degenhardt@usask.caNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

20390926

Citation

Degenhardt, Dani, et al. "Trace Level Determination of Selected Sulfonylurea Herbicides in Wetland Sediment By Liquid Chromatography Electrospray Tandem Mass Spectrometry." Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes, vol. 45, no. 1, 2010, pp. 11-24.
Degenhardt D, Cessna AJ, Raina R, et al. Trace level determination of selected sulfonylurea herbicides in wetland sediment by liquid chromatography electrospray tandem mass spectrometry. J Environ Sci Health B. 2010;45(1):11-24.
Degenhardt, D., Cessna, A. J., Raina, R., Pennock, D. J., & Farenhorst, A. (2010). Trace level determination of selected sulfonylurea herbicides in wetland sediment by liquid chromatography electrospray tandem mass spectrometry. Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes, 45(1), 11-24. https://doi.org/10.1080/03601230903404291
Degenhardt D, et al. Trace Level Determination of Selected Sulfonylurea Herbicides in Wetland Sediment By Liquid Chromatography Electrospray Tandem Mass Spectrometry. J Environ Sci Health B. 2010;45(1):11-24. PubMed PMID: 20390926.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Trace level determination of selected sulfonylurea herbicides in wetland sediment by liquid chromatography electrospray tandem mass spectrometry. AU - Degenhardt,Dani, AU - Cessna,Allan J, AU - Raina,Renata, AU - Pennock,Dan J, AU - Farenhorst,Annemieke, PY - 2010/4/15/entrez PY - 2010/4/15/pubmed PY - 2010/7/14/medline SP - 11 EP - 24 JF - Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes JO - J Environ Sci Health B VL - 45 IS - 1 N2 - Sulfonylurea herbicides are widely used in crop production on the Canadian prairies and a portion of these herbicides applied to cropland are inevitably lost to surrounding aquatic ecosystems. Little is known regarding the presence of sulfonylurea herbicides in wetlands located amongst cropland. This paper describes a new analytical method for the extraction and the determination of seven sulfonylurea herbicides (thifensulfuron-methyl, tribenuron-methyl, ethametsulfuron-methyl, metsulfuron-methyl, rimsulfuron, nicosulfuron and sulfosulfuron) in wetland sediment. The method provided > 85% analyte recovery from fortified sediment for six of the seven sulfonylurea herbicides with a limit of quantification (LOQ) of 1.0 microg kg(-1). Tribenuron-methyl had significantly lower recovery compared to the other six sulfonylurea herbicides (LOQ = 2 microg kg(-1)). Mean recovery standard deviations were < 10%. This methodology was used to quantify sulfonylurea herbicide residues in sediment samples collected from prairie wetlands situated within the agricultural landscape of Saskatchewan and Manitoba, Canada. This is the first-known detection of sulfonylurea herbicide residues in prairie wetland sediments. Ethametsulfuron-methyl, sulfosulfuron and metsulfuron-methyl, the three most environmentally persistent of the seven sulfonylurea herbicides monitored in the surveillance component of this study, were most frequently detected in wetland sediment with mean concentrations ranging from 1.2 to 10 microg kg(-1). SN - 1532-4109 UR - https://www.unboundmedicine.com/medline/citation/20390926/Trace_level_determination_of_selected_sulfonylurea_herbicides_in_wetland_sediment_by_liquid_chromatography_electrospray_tandem_mass_spectrometry_ L2 - https://www.tandfonline.com/doi/full/10.1080/03601230903404291 DB - PRIME DP - Unbound Medicine ER -