Liquid chromatography-tandem mass spectrometric methods for the determination of spinosad, thiacloprid and pyridalyl in spring onions and estimation of their pre-harvest interval values
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- 作者：Marilena E. Dasenakia ; mdasenaki@chem.uoa.gr" class="auth_mail" title="E-mail the corresponding author ; Anna A. Bletsoua ; abletsou@chem.uoa.gr" class="auth_mail" title="E-mail the corresponding author ; Ahmad H. Hanafib ; asy3012@yahoo.com" class="auth_mail" title="E-mail the corresponding author ; Nikolaos S. Thomaidisa ; ntho@chem.uoa.gr" class="auth_mail" title="E-mail the corresponding author
- 关键词：Pesticides ; Spring onions ; Multi-residue ; LC&ndash ; MS/MS ; Pre harvest interval ; Degradation rate ; Half-life
- 刊名：Food Chemistry
- 出版年：2016
- 出版时间：15 December 2016
- 年：2016
- 卷：213
- 期：Complete
- 页码：395-401
- 全文大小：429 K
文摘
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LC–MS/MS methods for the determination of spinosad, thiacloprid & pyridalyl in spring onions are presented.
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A multi-residue method and a specific one for pyridalyl were developed and validated.
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Thorough optimisation of analytical parameters (mobile phase, ionisation) was performed.
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Degradation rates, PHIs and half-life values of the pesticides were calculated.
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A pre-harvest interval of 10 days was achieved for thiacloprid, 39.4 days for pyridalyl and 0 days for spinosad.