Analytical Method for the Determination of Metolachlor, Acetochlor, Alachlor, Dimethenamid, and Their Corresponding Ethanesulfonic and Oxanillic Acid Degradates in Water Using SPE and LC/ESI-MS/MS

A Good Laboratory Practices (GLP) validated, multiresidue analytical method is presented for the determination of the chloroacetanilide herbicides metolachlor, acetochlor, and alachlor, the chloroacetamide herbicide dimethenamid, and their respective ethanesulfonic (ESA) and oxanillic (OA) acid degr...

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Bibliographic Details
Published in:Analytical chemistry (Washington) 2002-08, Vol.74 (15), p.3754-3759
Main Authors: Yokley, Robert A, Mayer, Louis C, Huang, Sung-Ben, Vargo, John D
Format: Article
Language:English
Subjects:
Acetamides - analysis
Acetanilides - analysis
acetochlor
alachlor
Alkanesulfonates - analysis
Analysis methods
Analytical chemistry
Applied sciences
Chemistry
Chromatographic methods and physical methods associated with chromatography
Chromatography, High Pressure Liquid
dimethenamid
Exact sciences and technology
Fresh Water - analysis
Freshwater
Herbicides - analysis
Herbicides - standards
metolachlor
Natural water pollution
Other chromatographic methods
Oxamic Acid - analogs & derivatives
Pollution
Spectrometric and optical methods
Spectrometry, Mass, Electrospray Ionization
Toluidines - analysis
Water Pollutants - analysis
Water Pollutants - standards
Water treatment and pollution
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Summary:A Good Laboratory Practices (GLP) validated, multiresidue analytical method is presented for the determination of the chloroacetanilide herbicides metolachlor, acetochlor, and alachlor, the chloroacetamide herbicide dimethenamid, and their respective ethanesulfonic (ESA) and oxanillic (OA) acid degradates in ground and surface water. A 50-mL water sample is subjected to purification using a C-18 SPE column. The four parent components and their eight ESA and OA degradates are isolated using 80/20 methanol/water (v/v) for elution. The eluate is reduced to
ISSN:0003-2700
1520-6882
DOI:10.1021/ac020134q