阿米西达
杀菌剂
葡萄酒
高效液相色谱法
化学
色谱法
园艺
生物
食品科学
作者
Susana de Melo Abreu,Manuela Correia,Paulo Herbert,Lúcia Santos,Arminda Alves
标识
DOI:10.1080/02652030500137918
摘要
Abstract The Quinone outside Inhibitors (QoI) are one of the most important and recent fungicide groups used in viticulture and also allowed by Integrated Pest Management. Azoxystrobin, kresoxim-methyl and trifloxystrobin are the main active ingredients for treating downy and powdery mildews that can be present in grapes and wines. In this paper, a method is reported for the analysis of these three QoI-fungicides in grapes and wine. After liquid–liquid extraction and a clean-up on commercial silica cartridges, analysis was by isocratic HPLC with diode array detection (DAD) with a run time of 13 min. Confirmation was by solid-phase micro-extraction (SPME), followed by GC/MS determination. The main validation parameters for the three compounds in grapes and wine were a limit of detection up to 0.073 mg kg−1, a precision not exceeding 10.0% and an average recovery of 93% ± 38. Keywords: QoI-fungicidesgrapeswinesmethod validationHPLCGC/MS Acknowledgements The authors wish to thank the FCT – Fundação para a Ciência e Tecnologia, in Portugal, for financial support (SFRH/BD/4648/2001).
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