塑料食品包装材料中非邻苯甲酸酯省略增塑剂DINCH迁移量检测方法杨潇.pdf

网络出版时间：2013-07-02 13:59 网络出版地址：/kcms/detail/11.2206.TS1359.004.html 2013-07-01 塑料食品包装材料中非邻苯二甲酸酯类 增塑剂DINCH迁移量的检测方法 * 杨潇 ，芮光伟，陈祥贵 西华大学生物工程学院 四川 成都610039 摘 要：采用气相色谱质谱联用法测定塑料食品包装材料中非邻苯二甲酸酯类增塑剂环己烷 1，2-二甲酸二 异壬基酯（Di(isononyl) cyclohexane-1, 2-dicarboxylate, DINCH ）的迁移量。分别用水、3 ％乙酸溶液和 15％ 乙醇溶液模拟水性食品，异辛烷模拟脂肪食品，水性食品模拟液浸泡样品后用正己烷进行萃取，脂肪食品 模拟液浸泡样品后采用氮气吹干后正己烷定容直接进样。结果表明，该方法线性范围为 10-400g/mL ， r=0.9999 ，在4 种模拟物浸泡液中，DINCH 的回收率为95.2%-103.4%，相对标准偏差均小于 5.00% 。该方 法定量准确、重现性好，可用于塑料食品包装材料中 DINCH 迁移量的评价。 关键词：塑料食品包装材料；增塑剂迁移量；环己烷 1，2-二甲酸二异壬基酯（DINCH ）；气相色谱-质谱法 (GC-MS) Determination of the migration of non-phthalate plasticizers DINCH in plastic food packaging materials YANG Xiao*, RUI Guangwei, CHEN Xianggui (Bioengineering School, Xihua University, Chengdu 610039, China) Abstract: Determination of the migration of Non-phthalate plasticizers Di(isononyl) cyclohexane-1, 2-dicarboxylate( DINCH) in Plastic food packaging materials by GCMS. Distilled water ，3%(w/v) acetic acid aqueous solution and 15 ％(v/v) ethanol aqueous solution were used as aqueous food stimulants. Isooctane was used as fatty food stimulants. The aqueous food stimulants were extracted with n-hexane after immersion test. The aqueous food stimulants were dried by nitrogen and constant volume by n-hexane for injection directly after immersion test