6533b82efe1ef96bd1293ecd
RESEARCH PRODUCT
Occurrence of glyphosate in beer from the Latvian market.
Iveta PugajevaVadims BartkevicsMārtiņš Jansonssubject
Health Toxicology and MutagenesiseducationGlycineFood Contamination010501 environmental sciencesToxicology01 natural scienceschemistry.chemical_compoundTandem Mass SpectrometryLc ms msSample preparationSolid phase extractionFood science0105 earth and related environmental sciencesMathematicsFinal versionMarketing010401 analytical chemistryPublic Health Environmental and Occupational Healthfood and beveragesBeerGeneral ChemistryGeneral MedicineLatvia0104 chemical sciencesChromatographic separationchemistryStationary phaseGlyphosateFood ScienceFood contaminantChromatography Liquiddescription
A sensitive LC-MS/MS method for the determination of glyphosate in beer has been developed, validated, and applied to analyse 100 beer samples from 24 different producers and distributors in Latvia. The selected samples represented most beer brands and varieties sold in local supermarkets. Different procedures for sample preparation and chromatographic separation were compared. The final version of the method consisted of solid phase extraction, chromatographic separation on aminopropyl stationary phase, and detection using tandem mass spectrometry. The concentration of glyphosate in beer varied from below the LOD of 0.2 μg kg-1 up to 150 μg kg-1, higher than previously reported. Significantly higher (p < 0.01) content of glyphosate was observed in beers that did not have the country of production disclosed on the label and were sold in local supermarkets by distributors from Latvia (1.8 μg kg-1 median concentration in locally produced beer, 6.7 μg kg-1 in beer of undisclosed origin).
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-08-02 | Food additivescontaminants. Part A, Chemistry, analysis, control, exposurerisk assessment |