食品塑料包装材料中二元醇迁移量的测定  

Determination of migration of dihydric alcohol in food plastic packaging materials

作　　者：乔海清 王光英 翟钰 陈东 孔祥祥 孙娜 邓可 王婷 李建兵 Qiao Haiqing;Wang Guangying;Zhai Yu;Chen Dong;Kong Xiangxiang;Sun Na;Deng Ke;Wang Ting;Li Jianbing(Qingdao Testing Research Institute of Product Quality,Qingdao 266101,China;National Quality Testing Center of Marine Fine Chemical and Biological Product,Qingdao 266101,China;Technology Center of Qingdao Customs,Qingdao 266500,China)

机构地区：[1]青岛市产品质量检验研究院,青岛266101 [2]国家海洋精细化工及其生物制品质量检验中心,青岛266101 [3]青岛海关技术中心,青岛266500

出　　处：《分析仪器》2023年第2期52-56,共5页Analytical Instrumentation

摘　　要：建立了气相色谱法测定食品塑料包装材料的不同食品模拟物中乙二醇、1,2-丙二醇、1,4-丁二醇和二甘醇的迁移量,采用内标法定量。食品模拟物选择10%乙醇、20%乙醇、50%乙醇、95%乙醇、4%乙酸和橄榄油,醇类和酸性模拟物可加入内标后直接测定,橄榄油模拟物加入内标用水萃取后测定。选用环己醇做为内标,通过对气相色谱柱的选择和气相色谱条件的优化,目标化合物能够实现完全分离,不受其他醇类化合物干扰,线性良好,在低、中、高3个加标水平的回收率为93.9%~116.9%,相对标准偏差为3.2%~13.5%。该方法简单、准确,可以同时满足对乙二醇、1,2-丙二醇、1,4-丁二醇和二甘醇迁移量测定的需要。A gas chromatography method was established for the determination of the migration of ethylene glycol,1,2-propanediol,1,4-butanediol and diethylene glycol in food plastic packaging materials,and internal standard method was used for quantification.10%ethanol,20%ethanol,50%ethanol,95%ethanol,4%acetic acid and olive oil were selected as food simulants.Ethanol and acetic acid simulants could be directly determined after adding internal standard.Olive oil simulants were extracted with water and determined after adding internal standard.Cyclohexanol was selected as internal standard.Through the optimization of gas chromatographic column and gas chromatographic conditions,the target compounds could be completely separated with good linearity,without interference from other alcohol compounds.The recoveries were 93.9%-116.9%,the relative standard deviation(RSD)was 3.2%—13.5%at low,medium and high standard levels.The method is simple and accurate,and can meet the needs of simultaneous determination of the migration of ethylene glycol,1,2-propanediol,1,4-butanediol and diethylene glycol.

关 键 词：气相色谱法 食品塑料包装材料 食品模拟物 迁移量 二元醇 

分 类 号：TS206.4[轻工技术与工程—食品科学]