Analysis of triazine and neonicotinoid pesticides in soil samples by UHPLC-Q-Orbitrap

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027006%3A_____%2F21%3A10174736" target="_blank" >RIV/00027006:_____/21:10174736 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Analysis of triazine and neonicotinoid pesticides in soil samples by UHPLC-Q-Orbitrap

Original language description

The aim of this study was to investigate the levels of persistent triazine herbicides and neonicotinoid insecticides in samples of soils from the Czech-Bavarian border. Ultrahigh-performance liquid chromatography connected to quadrupole Orbitrap high-resolution tandem mass spectrometer (UHPLC-Q-Orbitrap) was used for the determination of pesticide residues and their metabolites in soil samples. Soil samples and their upper and lower horizons from more than 50 localities were obtained from the border areas of western Bohemia and Bavaria. Pesticides were extracted from the soil samples using the QuEChERS (quick, easy, cheap, effective, rugged, and safe) procedure [1]. One general extraction procedure followed by one targeted UHPLC-Q-Orbitrap MS analytical method was used to monitor the compounds. The most frequently detected pesticides were triazine herbicides and their metabolites. The levels of individual pesticides (almost exclusively triazine metabolites) in some Czech soil samples exceeded the concentration of 0.01 μg/g. In contrast, neonicotinoid concentrations were relatively very low. At the same time, a significant decrease in triazine pesticides and their metabolites was recorded between the upper and lower soil horizon. Overall, our study demonstrated acceptable usage of UHPLC-Q-Orbitrap for quantification of multiple pesticide residues both in fresh and archive soils. This is also the first survey of multiple pesticide residues in various soil profiles, which is closely linked to their occurrence in underground water including an insight into their relationships to site and pesticide chemical properties.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

40106 - Agronomy, plant breeding and plant protection; (Agricultural biotechnology to be 4.4)

Project

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Continuities

R - Projekt Ramcoveho programu EK

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů