An Effective and Efficient Sample Preparation Method for 2-Methyl-Isoborneol and Geosmin in Fish and Their Analysis by Gas Chromatography-Mass Spectrometry

文献类型： 外文期刊

第一作者： Tian, Liang-liang

作者： Tian, Liang-liang;Han, Feng;Huang, Xuan-Yun;Kong, Cong;Shi, Yong-Fu;Cai, You-Qiong;Samanidou, Victoria F.;Fodjo, Essy Kouadio;Zhai, Wenlei

作者机构：

期刊名称：INTERNATIONAL JOURNAL OF ANALYTICAL CHEMISTRY （ 影响因子：1.885； 五年影响因子：2.52 ）

ISSN： 1687-8760

年卷期： 2021 年 2021 卷

页码：

收录情况： SCI

摘要： The intensive aquaculture strategy and recirculating aquaculture system often lead to the production of off-flavor compounds such as 2-methyl-isoborneol (2-MIB) and Geosmin (GSM). The regular purge and trap extraction followed by analysis with gas chromatography-mass spectrometry (GC-MS) usually involve a complicated assembly of facilities, more working space, long sample preparation time, and headspace solid-phase microextraction (SPME). In this work, a method with easier sample preparation, fewer and simplified facilities, and without SPME on GC-MS analysis is developed for the determination of 2-MIB and GSM in fish samples. Unlike previous methods, solvent extract from samples, QuEChERS-based cleanup, and solid-phase extraction for concentration are applied. The LOD (S/N > 3) and LOQ (S/N > 10) of this method were validated at 0.6 mu g/kg and 1.0 mu g/kg for both 2-MIB and GSM, which are under the sensory limit (1 mu g/kg). Application of this method for incurred fish samples demonstrated acceptable analytical performance. This method is suitable for large-scale determination of 2-MIB and GSM in fish samples, owing to the use of simple facility and easy-to-operate procedure, rapid sample preparation, and shorter time for GC-MS analysis without SPME.

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