Article (Scientific journals)
Travelling-wave ion mobility time-of-flight mass spectrometry as an alternative strategy for screening of multi-class pesticides in fruits and vegetables
Goscinny, Séverine; Joly, Laure; De Pauw, Edwin et al.
2015In Journal of Chromatography. A, 1405, p. 85-93
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Keywords :
ion-mobility mass spectrometry; drift time; screening; pesticides analysis
Abstract :
[en] This paper reports a novel approach to screening multi-class pesticides by ion mobility timeof- flight mass spectrometry detection. Nitrogen was selected as mobility gas. After optimization of the different ion mobility parameters, determination of matrix effect on the drift times was conducted using different matrix extracts. The results showed that drift time values are not influenced by the matrix and also are independent of the concentration within the working range for 100 pesticides tested, making drift time a powerful additional identification tool. Based on statistics, 2% variation criteria provides a good fit for all the pesticides targeted, and could be considered as a maximum acceptable criteria associated with the drift time parameter for identification purpose. This 2% value is in agreement with already reported criteria, for instance, for GC or LC retention time in European documents. Finally, the well-known feature of mobility to separate complex mixtures was also tested to obtain purified extracted mass spectra of pesticides in fruit extract.
Research center :
CART - Centre Interfacultaire d'Analyse des Résidus en Traces - ULiège
Disciplines :
Chemistry
Author, co-author :
Goscinny, Séverine ;  Université de Liège - ULiège > Form. doct. sc. (chimie - Bologne)
Joly, Laure
De Pauw, Edwin  ;  Université de Liège > Département de chimie (sciences) > Laboratoire de spectrométrie de masse (L.S.M.)
Hanot, Vincent
Eppe, Gauthier  ;  Université de Liège > Département de chimie (sciences) > Chimie analytique inorganique
Language :
English
Title :
Travelling-wave ion mobility time-of-flight mass spectrometry as an alternative strategy for screening of multi-class pesticides in fruits and vegetables
Publication date :
July 2015
Journal title :
Journal of Chromatography. A
ISSN :
0021-9673
eISSN :
1873-3778
Publisher :
Elsevier Science, Amsterdam, Netherlands
Volume :
1405
Pages :
85-93
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 09 June 2015

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