2024-03-29T12:37:19Zhttps://repositori.uji.es/oai/requestoai:repositori.uji.es:10234/1644422019-11-18T12:56:07Zcom_10234_71324com_10234_158176col_10234_98504
Repositori UJI
author
Salvador Miró, Noemí
other
Universitat Jaume I. Departament de Química Física i Analítica
2016-11-15T13:30:31Z
2016-11-15T13:30:31Z
2016-06-24
http://hdl.handle.net/10234/164442
An analytical method has been developed for the simultaneous quantification
and determination of organophosphorus pesticides in surface water by gas
chromatography coupled to mass spectrometry with a triple quadrupole analyzer. The
study has been focused on the determination of three insecticides of the same
chemical family.
In this work, a solid phase extraction was performed using Oasis HLB PRiME
cartridges and an isotopically-labeled internal standard was added before extraction as
surrogate. Analyses were performed by gas chromatography with tandem mass
spectrometry (MS/MS) in electron ionization mode, and three MS/MS transitions were
acquired for each analyte, using q/Q ratio as a confirmatory parameter.
The method was validated at two levels: 0.15 μg L-1 and 0.75 μg L-1. The
recoveries obtained were between 70-120% and the relative standard deviations were
lower than 20%. Once the method was validated, it was applied to the analysis of
surface water collected from Castellón (Spain) and no positive findings were obtained.
eng
Grau en Química
Grado en Química
Bachelor's Degree in Chemistry
Determination of organophosphorus pesticides in surface water by gas chromatography coupled to tandem mass spectrometry
info:eu-repo/semantics/bachelorThesis
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URL
https://repositori.uji.es/xmlui/bitstream/10234/164442/1/TFG_2015_Salvador_Mir%C3%B3N.pdf
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TFG_2015_Salvador_MiróN.pdf.txt