气相色谱-质谱同时测定食品包装材料中9种光引发剂
发布时间：2018-12-09 17:00
【摘要】：建立了同时测定食品包装材料中二苯甲酮、4-甲基二苯甲酮、4-氯二苯甲酮、1-羟基环己基苯基甲酮、对二甲氨基苯甲酸乙酯、对二甲氨基苯甲酸异辛脂、2-氯硫杂蒽酮、2-异丙基硫杂蒽酮和2,4-二乙基硫杂蒽酮9种光引发剂的气相色谱-质谱法。通过单因素实验和正交试验确定了以15mL二氯甲烷,于40℃下超声提取20min的样品前处理条件。在优化的柱温程序下9种光引发剂目标物获得较好分离,质谱选择离子扫描定量。方法的检出限(S/N=3)为0.7840~7.699μg/L,3种不同标准添加水平下的平均回收率为92.44%~110.6%,相对标准偏差为1.60%~9.46%(n=6)。方法简便、快速、灵敏、准确,可用于食品包装材料中光引发剂的分析监测。
[Abstract]:The simultaneous determination of benzophenone, 4-methylbenzophenone, 4-chlorobenzophenone, 1-hydroxycyclohexylphenyl ketone, ethyl p-dimethylaminobenzoate, isooctyl p-dimethylaminobenzoate in food packaging materials was established. Gas chromatography-mass spectrometry (GC-MS) of 9 photoinitiators of 2-chloro-thioanthrone, 2-isopropyl thioxanthrone and 2-diethylthianthone. By single factor experiment and orthogonal test, the pretreatment conditions of 20min samples extracted by 15mL dichloromethane at 40 鈩，
本文编号：2369731
[Abstract]:The simultaneous determination of benzophenone, 4-methylbenzophenone, 4-chlorobenzophenone, 1-hydroxycyclohexylphenyl ketone, ethyl p-dimethylaminobenzoate, isooctyl p-dimethylaminobenzoate in food packaging materials was established. Gas chromatography-mass spectrometry (GC-MS) of 9 photoinitiators of 2-chloro-thioanthrone, 2-isopropyl thioxanthrone and 2-diethylthianthone. By single factor experiment and orthogonal test, the pretreatment conditions of 20min samples extracted by 15mL dichloromethane at 40 鈩，
本文编号：2369731
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