文章摘要
朱丽娴,林勤保,钟怀宁,刘星东,李丹.聚乙烯薄膜中芥酸酰胺的测定及其稳定性研究[J].包装工程,2018,39(7):86-90.
ZHU Li-xian,LIN Qin-bao,ZHONG Huai-ning,LIU Xing-dong,LI Dan.Determination of Erucamide in Polyethylene Films and Its Stability[J].Packaging Engineering,2018,39(7):86-90.
聚乙烯薄膜中芥酸酰胺的测定及其稳定性研究
Determination of Erucamide in Polyethylene Films and Its Stability
投稿时间:2017-09-14  修订日期:2018-04-10
DOI:10.19554/j.cnki.1001-3563.2018.07.016
中文关键词: 芥酸酰胺  高效液相色谱  稳定性  降解  聚乙烯  薄膜
英文关键词: erucamide  high performance liquid chromatography  stability  degradation  polyethylene  film
基金项目:国家质检总局科技计划(2016IK057);广东省自然科学基金(2015A030313329);广东省动植物与食品进出口技术措施研究重点实验室开放课题(2015-2017)
作者单位
朱丽娴 暨南大学 包装工程研究所珠海 519070 
林勤保 暨南大学 包装工程研究所珠海 519070 
钟怀宁 广东出入境检验检疫局技术中心广州 510623 
刘星东 安姆科德泉薄膜公司佛山 528000 
李丹 广东出入境检验检疫局技术中心广州 510623 
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中文摘要:
      目的 测定低密度聚乙烯中芥酸酰胺的含量,并研究芥酸酰胺经紫外照射和高温处理后的稳定性。方法 采用二甲苯溶解薄膜,经离心、氮吹、甲醇复溶提取其中的芥酸酰胺,用高效液相色谱测定其含量;采用紫外照射和高温处理芥酸酰胺,利用高效液相色谱、气相色谱-质谱和傅里叶红外光谱研究芥酸酰胺标准品的稳定性。结果 芥酸酰胺在2~100 µg/mL范围内线性良好,相关系数R>0.999,方法检出限为0.6 µg/mL,定量限为2.0 µg/mL,加标回收率为98.6%~112.3%,相对标准偏差为5.6%~8.6%。紫外照射和高温处理芥酸酰胺没有产生新的化学键,其含量也没有明显减少。结论 高效液相色谱法 测定芥酸酰胺具有较好的稳定性和灵敏度,芥酸酰胺在高温、紫外处理后较稳定,不易发生降解等化学反应。
英文摘要:
      The work aims to determinate the content of erucamide in low density polyethylene and study the stability of erucamide after ultraviolet radiation and high temperature treatment. The erucamide was extracted from the xylene dissolving films after several procedures like centrifugation, nitrogen blowing and methanol re-dissolving, and its content was measured by high performance liquid chromatography. The erucamide was subject to ultraviolet radiation and high temperature treatment. The stability of standard erucamide was studied by HPLC, gas chromatography-mass spectrometry and Fourier transform infrared spectroscopy. The erucamide had good linearity in the range of 2~100 µg/mL with a correlation coefficient R>0.999. The detection limit and the limit of quantitation of the method were 0.6 µg/mL and 2 µg/mL, respectively. The added recovery was at 98.6%~112.3% and the relative standard deviation was at 5.6%~8.6%. No new chemical bond was found in the erucamide after ultraviolet radiation and high temperature treatment, and the content of erucamide was not significantly reduced, either. Determination of erucamide by means of HPLC has good stability and sensitivity. After high temperature treatment and ultraviolet radiation, the erucamide is more stable and chemical reactions like degradation hardly occur.
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