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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

作者: Tian, Liang-liang 1 ; Han, Feng 1 ; Fodjo, Essy Kouadio 2 ; Zhai, Wenlei 3 ; Huang, Xuan-Yun 1 ; Kong, Cong 1 ; Shi, Y 1 ;

作者机构: 1.Chinese Acad Fishery Sci, East China Sea Fisheries Res Inst, Key Lab East China Sea Fishery Resources Exploita, Minist Agr & Rural Affairs, Shanghai 200090, Peoples R China

2.Univ Felix Houphouet Boigny, Lab Constitut & React Matter, UFR SSMT, 22 BP 582, Abidjan 22, Cote Ivoire

3.Beijing Res Ctr Agr Stand & Testing, 9 Middle Rd Shuguanghuayuan, Beijing 100097, Peoples R China

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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