摘要
试验通过建立气质联用法检测宠物食品和饲料中的甜味剂二甘醇。采用无水乙醇溶解,超声提取,HP-INNOWAX毛细管色谱柱分离,SIM模式下m/z75作为定量离子,对几种常见的宠物食品进行检测,回收率为89.4%-116.9%,相对标准偏差（RSD）为2.9%-9.8%（n=5）,最低检测限为0.1mg·kg^-1,该方法准确、快捷、可靠,适用于饲料及宠物食品中痕量二甘醇的检测。
To establish a method for the determination of diethylene glycol by GC-MS in pet food. Dissolve by anhydrous ethyl alcohol, abstracted by ultrasonic wave and separated by capillary column of HP-INNOWAX, diethylene glycol was detected by mass spectrometry in SIM mode with quantitative m/z 75. This method had a recovery rate with 89.4%-116.9%, RSD with 2.9%-9.8%（n=5） and limit of detection with 0.1 mg · kg^-1in the three spiked levels test in several common pet food. This method is accurate, reliable and convenient way to detect diethylene glycol in feed and pet food.
出处
《饲料博览》
2015年第3期48-50,共3页
Feed Review
