Journal
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
Volume 27, Issue 35, Pages 43870-43883Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s11356-020-10287-0
Keywords
Pesticides; Multiclass; Drinking water; SPME; GC-MS; GC-ECD
Categories
Funding
- Fundacao de Amparo a Pesquisa e Inovacao do Estado de Santa Catarina (FAPESC) [455/2016]
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) [303892/2014-5]
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES) [001]
Ask authors/readers for more resources
The evaluation of the concentration of pesticides in drinking water presents a real concern. In this study, a simple and rapid method based on solid-phase microextraction (SPME) followed by gas chromatography-mass spectrometry and electron capture detectors was developed aiming at multiclass determination of 23 pesticides regulated by the Brazilian legislation. The extraction was carried out by direct immersion mode (DI-SPME) using DVB/Car/PDMS fiber coating. In order to improve the extraction efficiency, parameters such as temperature, salting-out effect, and extraction time were optimized. The method was evaluated using drinking water samples spiked with the analytes at different concentrations, and it showed good linearity in the range studied. The values obtained for limits of quantification (LOQ) were below the limits established by Brazilian regulations. Accuracy and precision of the method exhibited satisfactory results, providing relative recoveries from 70 to 123.34% at three spiked levels, and the relative standard deviations ranged from 0.53 to 24.8%. The method was applied in 20 drinking water samples from 13 cities in the State of Santa Catarina, Brazil.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available