文献类型： 外文期刊

作者： Wang Jing ¹ ; Tian Sheng-Lan ¹ ; Sun Wei-Hong ² ; Lin Hong ¹ ; Li Zhen-Xing ¹ ;

作者机构： 1.Ocean Univ China, Food Sci & Technol Coll, Qingdao 266003, Peoples R China

2.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Peoples R China

关键词： N-epsilon-Carboxymethyl-lysine;Fishery products;Gas chromatography-mass spectrometry;Derivatization

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： 2015 年 43 卷 8 期

页码：

收录情况： SCI

摘要： A method was developed to determine the N-epsilon-carboxymethyl-lysine content in the muscle tissues of turbot using gas chromatography-mass spectrometric method. Turbot was selected as the research object, and homogenized muscle tissue samples of turbot defatted by chloroform/acetone were pretreated followed by reduction, acid hydrolysis, purifying and derivatization (esterification and acylation). The ion of m/z 392 was selected as a quantitative ion, and the ions of m/z 392, 365, 333, and 305 were selected as qualitative ions in the selected ion monitoring mode. The range of the linear calibration curve of the N-epsilon-carboxymethyl-lysine derivative peak area and concentration extended from 1 to 200 mu g L-1. The limit of detection was 1 mg kg(-1), and the limit of quantification was 5 mg kg(-1). The average recoveries ranged from 100% to 104% at 10, 150 and 350 mg kg(-1) spiked levels, and the relative standard deviation was within 5% (n = 5).