Methods Comparison for Detecting Trends in Herbicide Monitoring Time-Series in Streams

Chow, Reynold; Spycher, Simon; Scheidegger, Ruth; Doppler, Tobias; Dietzel, Anne; Fenicia, Fabrizio; Stamm, Christian

doi:10.2139/ssrn.4385632

Cited by 1 publication

(1 citation statement)

References 33 publications

(51 reference statements)

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“…However, their extensive use also poses potential environmental risks as they can enter water bodies through surface runoff, infiltration, and other pathways, threatening aquatic ecosystems and human health. Therefore, monitoring and assessing the residual levels of these pesticides in the environment are of paramount importance (Chow et al, 2020;Berni et al, 2021;Gormez et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Enhancing the efficiency of polypyrrole-dodecylbenzene sulfonic acid in-tube solid-phase microextraction coating for analysis of nitrogen-containing pesticides in water environments

Ma,

Yu,

et al. 2024

Front. Environ. Sci.

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Background: With the growing use of nitrogen-containing pesticides in agriculture, their residues in the environment have raised significant public health concerns.Objective: This study aimed to develop a novel PPy-DBSA/IT-SPME coating to enhance the detection efficiency of polar nitrogen-containing pesticides in water matrices.Methods: The preparation conditions were optimized, including pyrrole concentration at 7.0 mol/L, DBSA concentration at 0.014 mol/L, oxidant concentration at 0.35 mol/L, and a coating cycle repeated 10 times. High-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) was employed for detection.Results: The novel coating effectively adsorbed 19 different categories of polar nitrogen-containing pesticides, including sulfonylureas, triazolopyrimidines, diphenyl ether herbicides, benzoylurea insecticides, and phenylurea herbicides, with unadsorbed rates below 10%. The analytical method achieved an average recovery rate of 61.92% to 115.21%, with an RSD below 5.0%. Detection and quantification limits ranged from 0.012 to 0.524 μg/L and 0.127 to 5.243 μg/L, respectively.Conclusion: The developed method is green, efficient, simple, and cost-effective. It offers an environmentally friendly and user-friendly approach for the detection of polar nitrogen-containing pesticide residues, demonstrating good recovery and precision. This method holds potential for wide application in environmental monitoring and food safety.

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Section: Introductionmentioning

confidence: 99%