Determination of Five Lipophilic Marine Toxins in Shellfish by Liquid Chromatography with Tandem Mass Spectrometry

文献类型： 外文期刊

第一作者： Yao Jian-Hua

作者： Yao Jian-Hua;Tan Zhi-Jun;Zhou De-Qing;Yao Jian-Hua

作者机构：

关键词： Lipophilic marine toxins;Shellfish;Liquid chromatography-tandem mass spectrometry

期刊名称：CHINESE JOURNAL OF ANALYTICAL CHEMISTRY （ 影响因子：1.134； 五年影响因子：0.909 ）

ISSN： 0253-3820

年卷期： 2010 年 38 卷 12 期

页码：

收录情况： SCI

摘要： A liquid chromatography-tandem mass spectrometric (LC-MS/MS) method for the determination of five lipophilic marine toxins including Gymnodimine (GYM), Spirolide-1 (SPX1), Okadaic acid (OA) Pecenotoxin-2 (PTX2) and Azaspiracid-1 (AZA1) in shellfish was developed. After being extracted with methanol and water (80/20, V/V), the extract was cleaned by solid phase extraction of MAX column, then determined by a reversed phase HPLC gradient program coupled with tandem mass spectrometry in selected-reaction-monitoring mode. GYM, SPX1, OA, PTX2, AZA1 were analyzed in positive ion mode, while OA in negative ion mode. The calibration curves were linear well between LC peak area of the selected ion-pair and the concentration of five lipophilic marine toxins with the correlation coefficient over 0.99. The average recoveries from spiked scallop muscle at the concentration ranged from 78.6% to 94.4% with relative standard deviation from 6.8% to 14.9%. The limits of detection were 0.10, 0.21, 2.00, 0.32 and 0.04 mu g/kg for GYM, SPX1, OA, PTX2 and AZA1 respectively.

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