Over het archief
Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.
Basisinformatie over ‘Open Access to scholarly information'.
Ultra-performance liquid chromatography for the determination of pesticide residues in foods by tandem quadrupole mass spectrometry with polarity switching
Leandro, C.C.; Hancock, P.; Fussell, R.J.; Keely, B.J. (2007). Ultra-performance liquid chromatography for the determination of pesticide residues in foods by tandem quadrupole mass spectrometry with polarity switching. J. Chromatogr. 1144(2): 161-169. https://dx.doi.org/10.1016/j.chroma.2007.01.030
In: Journal of Chromatography A. Elsevier: Amsterdam. ISSN 0021-9673; e-ISSN 1873-3778, meer
|  |
| Trefwoord |
|
| Author keywords |
Ultra-performance liquid chromatography; Tandem mass spectrometry; Polarity switching; Pesticide residues |
| Auteurs | | Top |
- Leandro, C.C., meer
- Hancock, P.
- Fussell, R.J.
- Keely, B.J.
|
|
|
| Abstract |
An ultra-performance liquid chromatographic (UPLC) electrospray ionisation tandem quadrupole mass spectrometric method has been developed for the determination of 52 pesticides in cereal-based baby foods, oranges and potatoes. The fast polarity switching capability of the mass spectrometer used enabled the determination of 44 of the compounds in the positive ionisation mode and 8 of the compounds in the negative ionisation mode in a single run. Prior to analysis, co-extractives were removed from acetonitrile extracts using dispersive solid-phase extraction with primary secondary amine (50 mg). The UPLC method separates all of the pesticides, resolves structural isomers (e.g. butocarboxim sulfoxide and aldicarb sulfoxide) and has a short (7 min) cycle time. Extracts spiked with pesticides at 0.10 and 0.01 mg kg-1 yielded average recoveries in the range of 66–124% with relative standard deviations less than 19% for the majority of the analytes. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
