Liquid chromatographic-mass spectrometric determination of post-harvest fungicides in citrus fruits

Journal of Chromatography. a
M FernándezJ Mañes

Abstract

Liquid chromatography (LC)-atmospheric pressure ionisation (API)-mass spectrometry (MS) has been used to determine residues of five fungicides in oranges with a minimum sample cleanup. Atmospheric pressure chemical ionisation (APCI) and electrospray (ES) were compared and both gave similar results in terms of sensitivity and structural information. The main ions were [M+H]+ for carbendazim, imazalil, thiophanate methyl and thiabendazole, and [M+H-C4H9NHCO]+ for benomyl. Samples were extracted with sodium sulphate and ethyl acetate. Although benomyl and thiophanate methyl were transformed through the extraction procedure to carbendazim, the method showed good precision (<13%) and recovery (>70%), except for thiophanate methyl (50%), whilst also yielding limits of detection (<0.03 mg kg(-1)) that are adequate for the determination of the studied fungicides in oranges.

References

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Citations

Apr 11, 2003·Chemosphere·A BoudinaJ M Chovelon
May 12, 2009·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Hiroko TsukataniTotaro Imasaka
Aug 5, 2005·Journal of Chromatography. a·Eva R TröskenWolfgang Völkel
Jul 27, 2001·Journal of Mass Spectrometry : JMS
Jan 29, 2009·European Journal of Mass Spectrometry·Nobuyasu ItohTakashi Yarita
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Oct 19, 2007·Rapid Communications in Mass Spectrometry : RCM·Min YeYung-Chi Cheng
Oct 25, 2008·Bulletin of Environmental Contamination and Toxicology·Hiroko TsukataniTotaro Imasaka
May 1, 2021·Materials·Małgorzata Tatarczak-MichalewskaMonika Szymańska-Chargot
Oct 17, 2020·Journal of Agricultural and Food Chemistry·Su-Yan WangPedro Laborda
Apr 30, 2005·Analytical Chemistry·Imma FerrerAmadeo R Fernández-Alba

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