Glyphosate in yam from Ghana.
Faculty of Bioscience Engineering, Department of Crop Protection Chemistry, Ghent University, Ghent, Belgium.
Institute for Interdisciplinary Research and Consultancy Services, University for Development Studies, Tamale, Ghana.
Department of Crop Protection, Sancti Spiritus University, Sancti Spiritus, Cuba.
- Published Article
Food additives & contaminants. Part B, Surveillance
- Publication Date
Dec 01, 2019
Glyphosate is used in Ghana on many crops including yam. There is the suspicion that there could be residue problems in the yam crop. Glyphosate as a polar compound is noted for its difficulty to be analysed in biological matrices. In this study, the method for glyphosate analysis based on FMOC-Cl derivatization was modified with a clean-up (CH2Cl2) step and validated to analyse glyphosate in yam by LC-MS/MS. The results showed that the validated method was efficient for the analysis of glyphosate in yam, with recoveries of 34%, linearity of 0.997, RSD of 7%, LOD of 0.04 mg kg-1, and LOQ of 0.12 mg kg-1. Out of 68 samples analysed from a field experiment and from markets, glyphosate was detected in 14 samples, but at levels below the LOQ. It is concluded that the yam contained glyphosate residues at very low levels which may not pose threat to human health.
Report this publication
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
This record was last updated on 12/31/2019 and may not reflect the most current and accurate biomedical/scientific data available from NLM.
The corresponding record at NLM can be accessed at https://www.ncbi.nlm.nih.gov/pubmed/31046629