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WWEM 2022 Conference Programme
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Abstract Title: Analysis of Glyphosate, Glufosinate and AMPA in environmental water with direct injection
Presenter Name: Mr Janitha De Alwis
Company/Organisation: Waters Corporation
Country: United Kingdom

Abstract Information :

Abstract, rnThe purpose of this work was to demonstrate a direct injection UPLC-MS/MS method for the determination of highly polar anionic pesticides in drinking and environmental waters. The method performance study was completed on an ACQUITY UPLC I-Class PLUSTM System with a Xevo TQ AbsoluteTM.rnA method validation study was carried out on drinking, reservoir, river, and ground water. The method performance was assessed for glyphosate, AMPA and glufosinate using 2 spike levels at 20 and 60 ng/L for all analytes, with 11 replicates through inter-day and intra-day testing. The coefficients of determination (r2>0.999) and residuals (<10%) were all excellent. Average method performance for trueness was between 95 and 103% across all matrices, while the RSDs were below 11%.rnThis demonstrates the excellent sensitivity and selectivity of the method and its suitability for checking compliance. rnĀ© 2022 Waters Corporationrn



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