...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of High Resolution Chromatography >Determination of Dihydroxybenzenes in Plastic Food Packaging Materials and in Food Simulating Liquids Using Capillary Electrophoresis
【24h】

Determination of Dihydroxybenzenes in Plastic Food Packaging Materials and in Food Simulating Liquids Using Capillary Electrophoresis

机译：使用毛细管电泳法测定塑料食品包装材料和食品模拟液体中的二羟基苯

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A capillary electrophoresis method has been developed to determine 1,2-dihydroxybenzene and 1,3-dihydroxybenzene in the food simulants distilled water, 3% acetic acid, 15% ethanol, and olive oil. Both substances, used as monomers and additives to make food packaging plastics, could be analyzed within 15 min. The 1,4-dihydroxybenzene isomer was unretained and eluted with the electroosmotic flow, and so the CE method can give only a semi-quantitative estimate of this isomer if it is present as a migrant. The analytical recovery for the 1,2- and 1,3-isomers from spiked simulants was good at 87% to 98% except for 1,2-dihydroxybenzene which could only be recovered to the extent of 58% from olive oil. Calibration graphs were linear and the limit of detection for each substance was 0.6 mg/kg, which is well below migration limits for these substances. It is concluded that CE offers a rapid and reliable analysis for the control of migration from plastics intended for food contact which employ 1,2-dihydroxybenzene or 1,3-dihydroxybenzene during manufacture, and offers a screening method for 1,4-dihydroxybenzene migration.
机译：已经开发出一种毛细管电泳方法来测定食品模拟物蒸馏水，3％乙酸，15％乙醇和橄榄油中的1,2-二羟基苯和1,3-二羟基苯。可以在15分钟内分析用作制造食品包装塑料的单体和添加剂的两种物质。 1,4-二羟基苯异构体未被保留，并被电渗流洗脱，因此，如果CE方法存在于迁移物中，则CE方法只能对该异构体进行半定量估算。从加标模拟物中的1,2-和1,3-异构体的分析回收率在87％至98％范围内很好，除了1,2-二羟基苯只能从橄榄油中回收到58％的程度。校准曲线为线性，每种物质的检出限为0.6 mg / kg，远低于这些物质的迁移极限。结论是，CE为控制食品接触塑料的迁移提供了快速可靠的分析方法，这些塑料在制造过程中使用1,2-二羟基苯或1,3-二羟基苯，并提供了1,4-二羟基苯迁移的筛选方法。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号