PET瓶中UV-P和UV-234两种光稳定剂的迁移研究 |
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引用本文: | 李丽怡,梁锡镇,林勤保,李波,吴宇梅. PET瓶中UV-P和UV-234两种光稳定剂的迁移研究[J]. 包装与食品机械, 2015, 0(4). DOI: 10.3969/j.issn.1005-1295.2015.04.001 |
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作者姓名: | 李丽怡 梁锡镇 林勤保 李波 吴宇梅 |
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作者单位: | 1. 暨南大学电气信息学院,广东珠海,519070;2. 暨南大学电气信息学院,广东珠海519070;产品包装与物流广东普通高校重点实验室,广东珠海519070 |
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基金项目: | 国家自然科学基金资助项目(21277061),暨南大学大学生创新创业训练计划 |
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摘 要: | 建立了PET瓶中2种光稳定剂2-(2'-羟基-5'-甲基苯基)苯并三唑(UV-P)和2-(2-羟基-3',5'-二枯基苯基)-苯并三唑(UV-234)的高效液相色谱检测方法。两种光稳定剂在质量浓度为0.5μg/m L~20μg/m L的范围内线性良好,相关系数R0.99,加标浓度为2、4、10μg/m L的加标回收率为76.2%~111.7%,相对标准偏差为1.2%~11.7%,UV-P和UV-234的检出限分别为0.05μg/m L和0.07μg/m L,并用该方法对市售食品的PET瓶进行了检测。最后根据欧盟法规使用50%(v/v)和95%(v/v)的乙醇以及异辛烷作为食品模拟物对PET样品瓶中2种光稳定剂的迁移进行了研究。
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关 键 词: | PET瓶 光稳定剂 高效液相色谱 迁移 |
Study on Migration of UV-P and UV-234 Light Stabilizers in PET Bottle |
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Abstract: | A method of high performance liquid chromatography ( HPLC ) was established for detecting light stabilizers 2-(2′-hydroxy-5′-methylphenyl) (UV-P) and 2-(2h-benzotriazol-2-yl)-4,6-bis(1-methyl-1-phenylethyl ) phenol ( UV-234 ) in PET bottles.The standard curves were linear in the range of 0.5~20 μg/mL and had a good linear relationship (R>0.99).Spiked at concentration of 2,4,10 μg/mL,the recoveries were 76.2% ~117.9% with RSD 1.2% ~11.7%.The limit of detection of UV-P and UV-234 were 0.05μg/mL and 0.07μg/mL.Then this method was applied to determine the two light stabilizers in PET bot-tles in the market.Finally,according to the EU regulations ,three kinds of food simulants including 50%(v/v) ethanol,95%(v/v) ethanol and isooctane were selected for the migration of light stabilizers from PET bottles. |
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Keywords: | PET bottle light stabilizers HPLC migration |
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