Development and Validation of a Method for Analysis of Glyphosate Residues in Made Tea(Camellia Sinensis) Using Lc-Ms/Ms Technique

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dc.contributor.author Yogendrarajah, S.
dc.date.accessioned 2021-10-28T09:59:02Z
dc.date.available 2021-10-28T09:59:02Z
dc.date.issued 2015
dc.identifier.other UWU/TEA/15/0028
dc.identifier.uri http://www.erepo.lib.uwu.ac.lk/bitstream/handle/123456789/7464/TEA%2015%20028-28072021153516.pdf?sequence=1&isAllowed=y
dc.description.abstract Tea (Camellia sinensis (L) 0. Kuntze) is one of the most popular beverages all over the world. The tea industry has become a vital component in the Sri Lankan economy as tea became one of the major agricultural exporting commodities. Up to date, no method hasn't been succeeded in glyphosate residue analysis in black (made) tea in Sri Lanka. This study was conducted to fmd an accurate and precise method for Glyphosate residue analysis in black tea. A liquid chromatography - tandem mass spectrometry (LC-MS/ MS) method was developed to determine Glyphosate residues in black tea using XSelect PFP HSS column. The linearity of the detector response with a coefficient of determination (R2) of more than 0.995 was demonstrated in the range of 0.1 to 50 mg/kg(ppm) for the analyte. Accuracy measured in terms of recovery were between 70%-120% and precision (Relative standard deviation or RSD % < 20%) were evaluated at the fortification levels of low, mid and high in three replicates in black tea samples. This method has advantages such as simpler sample preparation and faster chromatographic analysis. Keywords: Glyphosate residues, black(made) tea, LC-MS/MS, Residue analysis en_US
dc.language.iso en en_US
dc.publisher Uva Wellassa University of Sri Lanka en_US
dc.relation.ispartofseries ;UWU/TEA/15/0028
dc.subject Tea Technology and Value Addition Degree Programme ( TEA) en_US
dc.title Development and Validation of a Method for Analysis of Glyphosate Residues in Made Tea(Camellia Sinensis) Using Lc-Ms/Ms Technique en_US
dc.title.alternative Research Article – TEA 2015 en_US
dc.type Thesis en_US


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