Packed in-tube solid phase microextraction with graphene oxide supported on aminopropyl silica: Determination of target triazines in water samples

Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
Ana L De ToffoliFernando M Lanças

Abstract

On-line in-tube solid phase microextraction (in-tube SPME) coupled to high performance liquid chromatography and tandem mass spectrometry (HPLC-MS/MS) was successfully applied to the determination of selected triazines in water samples. The method based on the employment of a packed column containing graphene oxide (GO) supported on aminopropyl silica (Si) showed that the extraction phase has a high potential for triazines extraction aiming to its physical-chemical properties including ultrahigh specific surface area, good mechanical and thermal stability and high fracture strength. Injection volume and loading time were both investigated and optimized. The method validation using Si-GO to extract and concentrate the analytes showed satisfactory results, good sensitivity, good linearity (0.2-4.0 µg L-1) and low detection limits (1.1-2.9 ng L-1). The high extraction efficiency was determined with enrichment factors ranging from 1.2-2.9 for the lowest level, 1.3-4.9 intermediate level and 1.2-3.0 highest level (n = 3). Although the analytes were not detected in the real samples evaluated, the method has demonstrated to be efficient through its application in the analysis of spiked triazines in ground and mineral water samples.

References

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Feb 2, 2017·Journal of Chromatography. a·Bruno Henrique Fumes, Fernando Mauro Lanças

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Citations

Oct 6, 2018·Journal of Separation Science·Edvaldo Vasconcelos Soares MacielFernando Mauro Lanças
Jun 20, 2020·Bulletin of Environmental Contamination and Toxicology·Elisa Beceiro-GonzálezSoledad Muniategui-Lorenzo
Aug 28, 2020·Frontiers in Chemistry·Edvaldo Vasconcelos Soares MacielFernando Mauro Lanças
Dec 29, 2020·Journal of Chromatography. a·Hiroyuki Kataoka
May 29, 2021·Journal of Separation Science·Natalia ManousiGeorge A Zachariadis

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