Rapid SPE – LC MS/MS analysis for atrazine, its by-products, simazine and S metolachlor in groundwater samples - Sorbonne Université Access content directly
Journal Articles MethodsX Year : 2020

Rapid SPE – LC MS/MS analysis for atrazine, its by-products, simazine and S metolachlor in groundwater samples

Abstract

A rapid analysis of pesticides using on-line Solid phase extraction LC MS/MS (Agilent Technology) was performed using only 2-mL water samples. SPE cartridge PLRP-s was used for the pre-concentration sample with methanol elution in back flush. Sensitive transitions and mass spectrometry conditions were optimized by direct infusion of individual standard solutions in a positive electrospray mode. Water samples were spiked with internal standards to compensate the matrix effect. The limit of quantification was calculated to be 20 ng L −1 using the standard deviation of blank analysis injected ten times and uncertainties were estimated at less than 20% on concentrations. This method was validated to study leaching water samples for which only small quantities of water were available. • Only 2 mL water sample was used. • Samples were filtered at 0.2 μm and spiked with individual standard. • Compounds were separated in an 18.5-min elution time using the dynamic MRM program.
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Dates and versions

hal-03797427 , version 1 (04-10-2022)

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Hélène Blanchoud, Fabrice Alliot, Ningxin Chen, Danièle Valdes. Rapid SPE – LC MS/MS analysis for atrazine, its by-products, simazine and S metolachlor in groundwater samples. MethodsX, 2020, 7, pp.100824. ⟨10.1016/j.mex.2020.100824⟩. ⟨hal-03797427⟩
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