Validation of automated Library-Based Qualitative Screening of Pesticides by Comprehensive Two-Dimensional Gas Chromatography/Time-of-Flight Mass Spectrometry

J.G.J. Mol; H.J. van der Kamp; G. van der Weg; M.K. van der Lee; A.M. Punt; T.C. de Rijk

doi:10.5740/jaoacint.SGEMol

Validation of automated Library-Based Qualitative Screening of Pesticides by Comprehensive Two-Dimensional Gas Chromatography/Time-of-Flight Mass Spectrometry

J.G.J. Mol, H.J. van der Kamp, G. van der Weg, M.K. van der Lee, A.M. Punt, T.C. de Rijk

Research output: Contribution to journal › Article › Academic › peer-review

21 Citations (Scopus)

Abstract

A method for automated detection and reporting of pesticides in plant materials based on comprehensive two-dimensional GC/time-of-flight MS with library-based detection by software has been developed and validated. Optimum settings for detection parameters such as spectral match threshold and first and second dimension retention time tolerances were assessed with respect to occurrence of false detects and false negatives. Next the method was validated following European Union guidelines established for qualitative screening of pesticides. The validation was largely done in retrospect by using data obtained for spiked samples (235 pesticides, various crops, 0.01-0.2 mg/kg) that had been analyzed previously with routine samples over a period of 18 months. At 0.01 mg/kg, the required 95% confidence level (

Original language	English
Pages (from-to)	1722-1740
Journal	Journal of AOAC International
Volume	94
Issue number	6
DOIs	https://doi.org/10.5740/jaoacint.SGEMol
Publication status	Published - 2011

Keywords

large-volume injection
spectral deconvolution
residue analysis
identification system
organic contaminants
time
vegetables
fruits
target
optimization

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10.5740/jaoacint.SGEMol

Cite this

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title = "Validation of automated Library-Based Qualitative Screening of Pesticides by Comprehensive Two-Dimensional Gas Chromatography/Time-of-Flight Mass Spectrometry",

abstract = "A method for automated detection and reporting of pesticides in plant materials based on comprehensive two-dimensional GC/time-of-flight MS with library-based detection by software has been developed and validated. Optimum settings for detection parameters such as spectral match threshold and first and second dimension retention time tolerances were assessed with respect to occurrence of false detects and false negatives. Next the method was validated following European Union guidelines established for qualitative screening of pesticides. The validation was largely done in retrospect by using data obtained for spiked samples (235 pesticides, various crops, 0.01-0.2 mg/kg) that had been analyzed previously with routine samples over a period of 18 months. At 0.01 mg/kg, the required 95% confidence level (",

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author = "J.G.J. Mol and {van der Kamp}, H.J. and {van der Weg}, G. and {van der Lee}, M.K. and A.M. Punt and {de Rijk}, T.C.",

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doi = "10.5740/jaoacint.SGEMol",

language = "English",

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AU - van der Kamp, H.J.

AU - van der Weg, G.

AU - van der Lee, M.K.

AU - Punt, A.M.

AU - de Rijk, T.C.

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KW - large-volume injection

KW - spectral deconvolution

KW - residue analysis

KW - identification system

KW - organic contaminants

KW - time

KW - vegetables

KW - fruits

KW - target

KW - optimization

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Validation of automated Library-Based Qualitative Screening of Pesticides by Comprehensive Two-Dimensional Gas Chromatography/Time-of-Flight Mass Spectrometry

Abstract

Keywords

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