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Fast analysis of glufosinate, glyphosate and its main metabolite, aminomethylphosphonic acid, in edible oils, by liquid chromatographycoupled with electrospray tandem mass spectrometry.
Fast analysis of glufosinate, glyphosate and its main metabolite, aminomethylphosphonic acid, in edible oils, by liquid chromatographycoupled with electrospray tandem mass spectrometry.
- Source :
-
Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment [Food Addit Contam Part A Chem Anal Control Expo Risk Assess] 2019 Sep; Vol. 36 (9), pp. 1376-1384. Date of Electronic Publication: 2019 Jul 09. - Publication Year :
- 2019
-
Abstract
- A method has been developed for the rapid, specific, accurate, precise and sensitive determination of glufosinate, glyphosate and its major metabolite, aminomethylphosphonic acid, in edible oils, by liquid chromatography coupled to tandem mass spectrometry. Oils were extracted with acidified water (1% formic acid), and the extracts were directly injected into an LC using a Hypercarb column as the stationary phase. The analytes were eluted by a mobile phase of methanol and water containing 1% acetic acid, and they were ionised by electrospray ionisation in negative ion mode. The method was validated and limits of quantification ranged from 5 μg kg <superscript>-1</superscript> (aminomethylphosphonic acid) to 10 μg kg <superscript>-1</superscript> (glyphosate and glufosinate). Three concentrations (10, 50 and 100 μg kg <superscript>-1</superscript> ) were selected to perform recovery studies. Mean recoveries ranged from 81.4% to 119.4%. Intra and inter-day precision were lower than 19%. Different edible oils were analysed, and no residues of the studied herbicides were detected above limits of quantification.
- Subjects :
- Aminobutyrates metabolism
Chromatography, Liquid
Glycine analysis
Glycine metabolism
Isoxazoles metabolism
Plant Oils metabolism
Tetrazoles metabolism
Glyphosate
Aminobutyrates analysis
Food Analysis
Food Contamination analysis
Glycine analogs & derivatives
Isoxazoles analysis
Plant Oils analysis
Tandem Mass Spectrometry
Tetrazoles analysis
Subjects
Details
- Language :
- English
- ISSN :
- 1944-0057
- Volume :
- 36
- Issue :
- 9
- Database :
- MEDLINE
- Journal :
- Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment
- Publication Type :
- Academic Journal
- Accession number :
- 31287383
- Full Text :
- https://doi.org/10.1080/19440049.2019.1631493