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Comparison of different mass spectrometric detection techniques in the gas chromatographic analysis of pyrethroid insecticide residues in soil after microwave-assisted extraction.
Anal Bioanal Chem. 2006 Feb; 384(3):801-9.AB

Abstract

A comparative study was carried out for the simultaneous determination of 11 pyrethroid insecticides in soil by gas chromatography (GC)--ion trap (IT)--mass spectrometry (MS), by means of two different ionization modes; electron impact and negative chemical ionization and three data acquisition procedures; full scan, selected ion monitoring and MS/MS. Pyrethroids investigated were tetramethrin, bifenthrin, phenothrin, lambda-cyhalothrin, permethrin, cyfluthrin, cypermethrin, flucythrinate, esfenvalerate, fluvalinate and deltamethrin. Soil samples were treated with toluene/water by microwave-assisted extraction for 9 min at 700 W and a cleaning up with florisil was performed. Clean soil samples were spiked with pyrethroids at a spiking level of 10, 25 and 50 ng/g. The method employed provides a concentration factor of 10. The ionization gas employed in the negative chemical ionization mode was methane. The use of MS/MS acquisition, in electron impact ionization, provided the best results, due to its high selectivity and sensitivity, giving very low limits of detection from 0.08 to 0.54 ng/g. In negative chemical ionization full scan and selected ion monitoring methods detection limits from 0.12 to 1.40 ng/g were found. The proposed methods were applied to several levels from 10 to 50 ng/g of spiked soils, being electron impact MS/MS method which minimizes matrix spectrum interferences and provided recovery average values from 84% to 120% with relative standard deviations which varied from 3.2 to 7.2%.

Authors+Show Affiliations

Esteve-Turrillas FA
Analytical Chemistry Department, University of Valencia, Edifici Jeroni Muñoz, 50th Dr. Moliner, 46100, Burjassot, Valencia, Spain.
Pastor A
No affiliation info available
de la Guardia M
No affiliation info available

MeSH

Gas Chromatography-Mass SpectrometryMicrowavesPesticide ResiduesPyrethrinsSensitivity and SpecificitySoilTandem Mass SpectrometryTime Factors

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

16362291

Citation

Esteve-Turrillas, Francesc A., et al. "Comparison of Different Mass Spectrometric Detection Techniques in the Gas Chromatographic Analysis of Pyrethroid Insecticide Residues in Soil After Microwave-assisted Extraction." Analytical and Bioanalytical Chemistry, vol. 384, no. 3, 2006, pp. 801-9.
Esteve-Turrillas FA, Pastor A, de la Guardia M. Comparison of different mass spectrometric detection techniques in the gas chromatographic analysis of pyrethroid insecticide residues in soil after microwave-assisted extraction. Anal Bioanal Chem. 2006;384(3):801-9.
Esteve-Turrillas, F. A., Pastor, A., & de la Guardia, M. (2006). Comparison of different mass spectrometric detection techniques in the gas chromatographic analysis of pyrethroid insecticide residues in soil after microwave-assisted extraction. Analytical and Bioanalytical Chemistry, 384(3), 801-9.
Esteve-Turrillas FA, Pastor A, de la Guardia M. Comparison of Different Mass Spectrometric Detection Techniques in the Gas Chromatographic Analysis of Pyrethroid Insecticide Residues in Soil After Microwave-assisted Extraction. Anal Bioanal Chem. 2006;384(3):801-9. PubMed PMID: 16362291.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Comparison of different mass spectrometric detection techniques in the gas chromatographic analysis of pyrethroid insecticide residues in soil after microwave-assisted extraction. AU - Esteve-Turrillas,Francesc A, AU - Pastor,Agustín, AU - de la Guardia,Miguel, Y1 - 2005/12/17/ PY - 2005/06/28/received PY - 2005/11/01/accepted PY - 2005/10/24/revised PY - 2005/12/20/pubmed PY - 2007/5/1/medline PY - 2005/12/20/entrez SP - 801 EP - 9 JF - Analytical and bioanalytical chemistry JO - Anal Bioanal Chem VL - 384 IS - 3 N2 - A comparative study was carried out for the simultaneous determination of 11 pyrethroid insecticides in soil by gas chromatography (GC)--ion trap (IT)--mass spectrometry (MS), by means of two different ionization modes; electron impact and negative chemical ionization and three data acquisition procedures; full scan, selected ion monitoring and MS/MS. Pyrethroids investigated were tetramethrin, bifenthrin, phenothrin, lambda-cyhalothrin, permethrin, cyfluthrin, cypermethrin, flucythrinate, esfenvalerate, fluvalinate and deltamethrin. Soil samples were treated with toluene/water by microwave-assisted extraction for 9 min at 700 W and a cleaning up with florisil was performed. Clean soil samples were spiked with pyrethroids at a spiking level of 10, 25 and 50 ng/g. The method employed provides a concentration factor of 10. The ionization gas employed in the negative chemical ionization mode was methane. The use of MS/MS acquisition, in electron impact ionization, provided the best results, due to its high selectivity and sensitivity, giving very low limits of detection from 0.08 to 0.54 ng/g. In negative chemical ionization full scan and selected ion monitoring methods detection limits from 0.12 to 1.40 ng/g were found. The proposed methods were applied to several levels from 10 to 50 ng/g of spiked soils, being electron impact MS/MS method which minimizes matrix spectrum interferences and provided recovery average values from 84% to 120% with relative standard deviations which varied from 3.2 to 7.2%. SN - 1618-2642 UR - https://www.unboundmedicine.com/medline/citation/16362291/Comparison_of_different_mass_spectrometric_detection_techniques_in_the_gas_chromatographic_analysis_of_pyrethroid_insecticide_residues_in_soil_after_microwave_assisted_extraction_ DB - PRIME DP - Unbound Medicine ER -