固相微萃取-气相色谱-串联质谱法测定强化葡萄酒中 24 种农药残留。
Determination of 24 pesticide residues in fortified wines by solid-phase microextraction and gas chromatography-tandem mass spectrometry.
机构信息
Instituto dos Vinhos do Douro e do Porto, IVDP, Porto, Portugal.
出版信息
J Agric Food Chem. 2011 Jul 13;59(13):6847-55. doi: 10.1021/jf104801c. Epub 2011 Jun 6.
The present work describes a solid-phase microextraction (SPME) gas chromatography-tandem mass spectrometry (MS/MS) method to quantify 24 pesticides in fortified white wine and fortified red wine. In this study "fortified wine" refers to a wine in which fermentation is arrested before completion by alcohol distillate addition, allowing sugar and alcoholic contents to be higher (around 80-100 g/L total sugars and 19-22% alcohol strength (v/v)). The analytical method showed good linearity, presenting correlation coefficients (R(2)) ≥ 0.989 for all compounds. Limits of detection (LOD) and quantitation (LOQ) in the ranges of 0.05-72.35 and 0.16-219.23 μg/L, respectively, were obtained. LOQs are below the maximum residue levels (MRL) set by European Regulation for grapes. The proposed method was applied to 17 commercial fortified wines. The analyzed pesticides were not detected in the wines tested.
本工作描述了一种固相微萃取（SPME）-气相色谱-串联质谱（MS/MS）方法，用于定量测定加香白葡萄酒和加香红葡萄酒中的 24 种农药。在本研究中，“加香葡萄酒”是指在发酵完成前通过添加酒精馏分来阻止发酵，从而使糖和酒精含量更高（总糖含量约为 80-100g/L，酒精度为 19-22%（v/v））的葡萄酒。该分析方法表现出良好的线性，所有化合物的相关系数（R²）均≥0.989。检测限（LOD）和定量限（LOQ）分别在 0.05-72.35 和 0.16-219.23μg/L 的范围内。LOQs 低于欧洲法规为葡萄设定的最大残留限量（MRL）。所提出的方法应用于 17 种商业加香葡萄酒。在测试的葡萄酒中未检出分析的农药。
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