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Simultaneous determination of Diazinon, Malathion and Quinalphos pesticide formulations by gas chromatography with an electron capture detector

A gas chromatography (GC) method has been developed to analyze simultaneously separate formulations of Diazinon, Malathion and Quinalphos with the internal standard method. A mixture of pure standard solution spiked with Chlorpyrifos as the internal standard and diluted with methanol was sonicated t...

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Main Authors: Asha K.L., Tan G.H., Chai M.K.
Other Authors: 16240801400
Format: Article
Published: 2023
Subjects:
Diazinon
GC-ECD
Malathion
Pesticide formulation
Quinalphos
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spelling my.uniten.dspace-297832023-12-28T16:57:39Z Simultaneous determination of Diazinon, Malathion and Quinalphos pesticide formulations by gas chromatography with an electron capture detector Asha K.L. Tan G.H. Chai M.K. 16240801400 7202393048 24172523100 Diazinon GC-ECD Malathion Pesticide formulation Quinalphos A gas chromatography (GC) method has been developed to analyze simultaneously separate formulations of Diazinon, Malathion and Quinalphos with the internal standard method. A mixture of pure standard solution spiked with Chlorpyrifos as the internal standard and diluted with methanol was sonicated to homogenize the solutions. A 2?L volume of the mixture standard solution was injected into the GC-ECD and a six point calibration curve that demonstrated a linear range was established for each target compound. Samples of each formulation, mixed with the internal standard and diluted with methanol were injected into the GC-ECD. Combinations of three different concentrations of each formulated pesticide were analyzed six times to obtain coefficients of variation which are less than 1%. The total analysis time for each run was 15 minutes. The concentration of active ingredients in the pesticide formulations were calculated from the peak area values at a retention time interpolated from the calibration graphs. The analytical results which show 55.41 � 0.82% for Diazinon, 83.97 � 0.36% for Malathion and 10.89 � 0.89 % for Quinalphos were within the specifications for these commercial pesticide formulations. Final 2023-12-28T08:57:39Z 2023-12-28T08:57:39Z 2006 Article 2-s2.0-34247493701 https://www.scopus.com/inward/record.uri?eid=2-s2.0-34247493701&partnerID=40&md5=65b35f23804693faa59fd8bcbe358315 https://irepository.uniten.edu.my/handle/123456789/29783 25 2 131 138 Scopus
institution Universiti Tenaga Nasional
building UNITEN Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
url_provider http://dspace.uniten.edu.my/
topic Diazinon
GC-ECD
Malathion
Pesticide formulation
Quinalphos
spellingShingle Diazinon
GC-ECD
Malathion
Pesticide formulation
Quinalphos
Asha K.L.
Tan G.H.
Chai M.K.
Simultaneous determination of Diazinon, Malathion and Quinalphos pesticide formulations by gas chromatography with an electron capture detector
description A gas chromatography (GC) method has been developed to analyze simultaneously separate formulations of Diazinon, Malathion and Quinalphos with the internal standard method. A mixture of pure standard solution spiked with Chlorpyrifos as the internal standard and diluted with methanol was sonicated to homogenize the solutions. A 2?L volume of the mixture standard solution was injected into the GC-ECD and a six point calibration curve that demonstrated a linear range was established for each target compound. Samples of each formulation, mixed with the internal standard and diluted with methanol were injected into the GC-ECD. Combinations of three different concentrations of each formulated pesticide were analyzed six times to obtain coefficients of variation which are less than 1%. The total analysis time for each run was 15 minutes. The concentration of active ingredients in the pesticide formulations were calculated from the peak area values at a retention time interpolated from the calibration graphs. The analytical results which show 55.41 � 0.82% for Diazinon, 83.97 � 0.36% for Malathion and 10.89 � 0.89 % for Quinalphos were within the specifications for these commercial pesticide formulations.
author2 16240801400
author_facet 16240801400
Asha K.L.
Tan G.H.
Chai M.K.
format Article
author Asha K.L.
Tan G.H.
Chai M.K.
author_sort Asha K.L.
title Simultaneous determination of Diazinon, Malathion and Quinalphos pesticide formulations by gas chromatography with an electron capture detector
title_short Simultaneous determination of Diazinon, Malathion and Quinalphos pesticide formulations by gas chromatography with an electron capture detector
title_full Simultaneous determination of Diazinon, Malathion and Quinalphos pesticide formulations by gas chromatography with an electron capture detector
title_fullStr Simultaneous determination of Diazinon, Malathion and Quinalphos pesticide formulations by gas chromatography with an electron capture detector
title_full_unstemmed Simultaneous determination of Diazinon, Malathion and Quinalphos pesticide formulations by gas chromatography with an electron capture detector
title_sort simultaneous determination of diazinon, malathion and quinalphos pesticide formulations by gas chromatography with an electron capture detector
publishDate 2023
_version_ 1806426145131855872
score 13.211869

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