Pu Fan, Zhang Wenpeng, Han Chao, Ouyang Zheng
State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, Beijing 100084, China.
Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA.
Anal Methods. 2017;9(34):5058-5064. doi: 10.1039/C7AY01534H. Epub 2017 Jun 26.
Fungicides are widely used for growing the grapes that are used for making wines. Chromatography coupled with tandem mass spectrometry is usually time and labor consuming for quantitation of fungicides in wines. In this work, a simple ambient mass spectrometry method using paper capillary spray was developed for the fast quantitation of four pyrazole fungicides in wines. Direct analysis of the wine samples was achieved without any sample preparation, obtaining limits of quantitation as low as 2 ng/mL for all four pyrazole fungicides. Quality control experiments also showed adequate accuracy and precision for the analysis of pyrazole fungicides in wine products.
杀菌剂被广泛用于种植用于酿酒的葡萄。色谱-串联质谱联用技术通常在定量葡萄酒中的杀菌剂时既耗时又费力。在这项工作中，开发了一种使用纸毛细管喷雾的简单常压质谱方法，用于快速定量葡萄酒中的四种吡唑类杀菌剂。无需任何样品前处理即可直接分析葡萄酒样品，所有四种吡唑类杀菌剂的定量限低至2 ng/mL。质量控制实验也表明，该方法在分析葡萄酒产品中的吡唑类杀菌剂时具有足够的准确度和精密度。
