GC-MS法同时检测葡萄酒中10种防腐剂和抗氧化剂

利用离子阱气相色谱-质谱联用仪，优化了色谱、质谱仪器参数，利用质谱全扫描技术建立了同时检测葡萄酒中山梨酸、苯甲酸、脱氢乙酸、叔丁基对苯二酚（TBHQ）、叔丁基羟基茴香醚（BHA）、2，6-二叔丁基对甲酚（BHT）、对羟基苯甲酸甲酯、对羟基苯甲酸乙酯、对羟基苯甲酸丙酯、对羟基苯甲酸丁酯等10种添加剂的方法。10种添加剂的检测限分别为0．11mg/L、0．072mg／L、0．046mg／L、0．035mg／L、0．032mg／L、0．020mg／L、0．035mg／L、0．042mg／L、0．035mg,／L、0．035mg／L，方法的精密度为2．9％～4．6％、回收率为82％～101％，应用于葡萄酒中食品添加剂的检测，效果良好，检测效率大大提高。

Simultaneous testing 10 preservatives and antioxidants in wine by GC-MS

The method for determination of 10 food additives including sorbic acid, benzoic acid, dehydroacetic acid, tertiary butylhydroquinone (TBHQ), butylated hydroxyanisole (BHA), butylated hydroxy toluene (BHT), methyl p-hydroxybenzoate, ethyl p-hydroxybenzoate, propyl p-hydroxybenzoate and butyl p-hydroxybenzoate] in wines by ion trap GC-MS combined with full scan detection technology was established, and the parameters of GC-MS were also optimized.The detection limits of sorbic acid, benzoic acid, dehydroacetic acid, TBHQ, BHA, BHT, methyl p-hydroxybenzoate, ethyl p-hydroxybenzoate, propyl p-hydroxybenzoate and butyl p-hydroxybenzoate were 0.11mg/L, 0.072mg/L, 0.046mg/L, 0.035mg/L, 0.032mg/L, 0.020mg/L, 0.035mg/L, 0.042mg/L, 0.035mg/L, 0.035mg/L, respectively.The relative standard deviation (RSD) and recovery rate of the method were 2.9% ～4.6% and 82% ～101%, respectively. The method met the detection requirement of 10 food additives in wines with good results.he detection efficiency of 10 food additives was greatly improved .