【摘要】：建立了同時測定食品包裝材料中二苯甲酮、4-甲基二苯甲酮、4-氯二苯甲酮、1-羥基環(huán)己基苯基甲酮、對二甲氨基苯甲酸乙酯、對二甲氨基苯甲酸異辛脂、2-氯硫雜蒽酮、2-異丙基硫雜蒽酮和2,4-二乙基硫雜蒽酮9種光引發(fā)劑的氣相色譜-質(zhì)譜法。通過單因素實驗和正交試驗確定了以15mL二氯甲烷,于40℃下超聲提取20min的樣品前處理條件。在優(yōu)化的柱溫程序下9種光引發(fā)劑目標物獲得較好分離,質(zhì)譜選擇離子掃描定量。方法的檢出限(S/N=3)為0.7840~7.699μg/L,3種不同標準添加水平下的平均回收率為92.44%~110.6%,相對標準偏差為1.60%~9.46%(n=6)。方法簡便、快速、靈敏、準確,可用于食品包裝材料中光引發(fā)劑的分析監(jiān)測。
[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，

本文編號：2369731