EurekaMag.com logo
+ Site Statistics
References:
52,725,316
Abstracts:
28,411,598
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Identification of a new sulfonic acid metabolite of metolachlor in soil


Environmental Science & Technology 30(2): 592-597
Identification of a new sulfonic acid metabolite of metolachlor in soil
An ethanesulfonic acid metabolite of metolachlor (metolachlor ESA) was identified in soil-sample extracts by negative-ion, fast-atom bombardment mass spectrometry (FAB-MS) and FAB tandem mass spectrometry (FAB-MS/MS). Product-ion fragments from MS/MS analysis of the deprotonated molecular ion of metolachlor ESA in the soil extract can be reconciled with the structure of the synthesized standard. The elemental compositions of the (M - H)- ions of the metolachlor ESA standard and the soil-sample extracts were confirmed by high-resolution mass spectrometry. A dissipation study revealed that metolachlor ESA is formed in soil under field conditions corresponding to a decrease in the concentration of the parent herbicide, metolachlor. The identification of the sulfonated metabolite of metolachlor suggests that the glutathione conjugation pathway is a common detoxification pathway shared by chloroacetanilide herbicides.

Accession: 002863201

DOI: 10.1021/es9503600

Download PDF Full Text: Identification of a new sulfonic acid metabolite of metolachlor in soil



Related references

Identification of a new metabolite of metolachlor in soil The importance of the sulfonic-acid pathway. Abstracts of Papers American Chemical Society 209(1-2): ENVR 28, 1995

Formation and transport of the sulfonic acid metabolites of alachlor and metolachlor in soil. Environmental Science and Technology 35(12): 2455-2460, 2001

Effects of wooded riparian zones and soil runoff potential on metolachlor, acetochlor, and alachlor herbicides and their ethane-sulfonic acid metabolites. International Symposium of the North American Lake Management Society 18: 114, 1998

Identification of a rare sulfonic acid metabolite of andrographolide in rats. Drug Metabolism and Disposition: the Biological Fate of Chemicals 31(8): 983-985, 2003

Determination of triallate and its metabolite 2,3,3-trichloro-prop-2-en-sulfonic acid in soil and water samples. Fresenius' Journal of Analytical Chemistry 360(5): 564-567, March 1, 1998

Laboratory lysimeter experiments on leaching of triallate and its metabolite 2,3,3-trichloro-prop-2-en-sulfonic acid in soil. Fresenius Environmental Bulletin 7(11/12): 627-634, 1998

Infiltration and adsorption of dissolved metolachlor, metolachlor oxanilic acid, and metolachlor ethanesulfonic acid by buffalograss (Buchloe dactyloides) filter strips. Weed Science 52(1): 166-171, 2004

N acetyl 1 amino 2 naphthol 6 sulfonic acid a common metabolite of sunset yellow fcf orange ggn and 1 amino 2 naphthol 6 sulfonic acid in rat urine. Journal of Chromatography 237(1): 115-126, 1982

Separation and fragmentation study of isocoproporphyrin derivatives by UHPLC-ESI-exact mass MS/MS and identification of a new isocoproporphyrin sulfonic acid metabolite. Journal of Mass Spectrometry 49(1): 80-85, 2014

Identification of a major human urinary metabolite of metolachlor by LC-MS/MS. Bulletin of Environmental Contamination and Toxicology 58(6): 929-933, 1997