气相色谱-质谱联用测定水产品中的合成麝香  

DETERMINATION OF SYNTHETIC MUSKS IN AQUATIC PRODUCTS BY GAS CHROMATOGRAPHY/MASS SPECTROMETRY

作　　者：车金水[1,2] 王利平[1] 宋启军 虞锐鹏[1] 

机构地区：[1]江南大学食品科学与技术国家重点实验室,无锡214122 [2]江南大学化学与材料工程学院,无锡214122

出　　处：《环境化学》2011年第6期1197-1201,共5页Environmental Chemistry

基　　金：国家自然科学基金(20977042);中国水产科学研究院重点开放实验室开放基金(YZ2009-05)资助

摘　　要：利用快速溶剂萃取(ASE)和在线吸附净化,气相色谱-质谱(GC/MS)联用测定水产品中8种合成麝香.以正己烷为萃取溶剂,中性氧化铝为吸附剂,在100℃的温度下对水产品进行萃取.实验结果表明,方法的检测限为0.1—0.5 ng·g-1;在浓度1—80 ng·g-1的范围内,峰面积与样品浓度呈良好线性关系;8种合成麝香的回收率为85.3%—94.6%,相对标准偏差为2.3%—8.4%.对20个太湖水产品样品中的8种合成麝香进行检测,发现水产品中广泛存在合成麝香,平均浓度(干重)分别为ADBI 2.8 ng·g-1、AHMI 0.2 ng·g-1、HHCB12.7 ng·g-1、ATII 4.2 ng·g-1、AHTN12.4 ng·g-1、MX 18.5 ng·g-1和MK1.4 ng·g-1,DPMI均未检出.ynthetic musks,as the substitutes for natural musks,are widely distributed in the environment.They are considered toxic,bioaccumulative and resistent to biodegradation.In this paper,a new analytical method,based on accelerated solvent extraction（ASE）,on-line sample clean-up and gas chromatography/mass spectrometry（GC/MS） detection was developed for the determination of synthetic musks in aquatic products.The experiment conditions were initially optimized and the highest extraction efficiency was obtained when n-hexane was used as the extraction solvent,the neutral aluminum oxide as the selective adsorbent and the temperature of extraction was set at 100 ℃.A limit of detection as low as 0.1—0.5 ng·g-1 with a linear range between 1—80 ng·g-1 was achieved for eight synthetic musks.The recoveries for spiked samples were in the range of 85.3%—94.6% with RSD between 2.3%—8.4%.Using this method,the contents of 8 synthetic musks in 20 aquatic products form the Taihu lake were determined,and the average contents of synthetic musks were 2.8,0.2,12.7,4.2,12.4,18.5 and 1.4 ng·g-1 respectively for ADBI,AHMI,HHCB ATII AHTN MX and MK.DPMI was below the limit of detection in all samples.

关 键 词：合成麝香 水产品 快速溶剂萃取 气相色谱-质谱联用 

分 类 号：TS254.7[轻工技术与工程—水产品加工及贮藏工程]