色谱

色谱 ›› 2013, Vol. 31 ›› Issue (7): 674-678.DOI: 10.3724/SP.J.1123.2013.05001

• 特别策划:庆祝欧庆瑜先生八十华诞专栏 • 上一篇    下一篇

常见食品中邻苯二甲酸酯类增塑剂含量及食品包装材料中邻苯二甲酸酯类增塑剂迁移量的测定

杨悠悠1,2, 谢云峰1,2, 田菲菲3, 杨永坛1,2   

  1. 1. 中粮营养健康研究院, 北京 100020;
    2. 北京市营养健康与食品安全重点实验室, 北京 100020;
    3. 岛津国际贸易有限公司北京分析中心, 北京 100020
  • 收稿日期:2013-05-02 出版日期:2013-07-28 发布日期:2013-07-17
  • 通讯作者: 杨永坛
  • 基金资助:

    中粮集团公司资助项目(2012-C3-F001).

Determination of phthalate plasticizers in daily foods and their migration from food packages

YANG Youyou1,2, XIE Yunfeng1,2, TIAN Feifei3, YANG Yongtan1,2   

  1. 1. China Oil & Foodstuffs Corporation (COFCO) Nutrition and Health Research Institute, Beijing 100020, China;
    2. Beijing Key Laboratory of Nutrition Health and Food Safety, Beijing 100020, China;
    3. Department of Analytical Instruments, Shimadzu International Trading (Shanghai) Co., Ltd., Beijing 100020, China
  • Received:2013-05-02 Online:2013-07-28 Published:2013-07-17

PDF

609

被引次数

81

摘要：

采用气相色谱-质谱联用(GC-MS)方法并结合液液萃取及基质分散固相萃取的样品处理方式,建立了测定饮料、牛奶、白酒3类食品中16种邻苯二甲酸酯类增塑剂的分析方法。研究结果表明16种邻苯二甲酸酯类增塑剂的检出限(LOD, S/N=3)范围为0.005~0.025 mg/L;峰面积的相对标准偏差(RSD)均小于2%。饮料、牛奶、白酒3种样品的加标回收率范围普遍在60%~110%。所建方法简便、灵敏、准确,可满足饮料、牛奶和白酒中痕量邻苯二甲酸酯类增塑剂的测定需要。此外,将该方法应用于食品包装材料中邻苯二甲酸酯类增塑剂的迁移研究,以异辛烷为油脂食品模拟物,测定了保鲜膜与保鲜袋中16种邻苯二甲酸酯类增塑剂的迁移量。结果显示保鲜膜存在显著的邻苯二甲酸酯类增塑剂迁移现象。

关键词: 包装材料, 基质分散固相萃取, 邻苯二甲酸酯, 气相色谱-质谱联用, 食品, 增塑剂

Abstract:

A total of 16 phthalates in food samples (beverage, milk and wine) were analyzed by gas chromatography-mass spectrometry (GC-MS) combined with the sample preparation of liquid-liquid extraction and dispersive solid-phase extraction (dSPE). The limits of detection (LODs, S/N=3) for the 16 phthalates were fairly good, ranging from 0.005 to 0.025 mg/L. The relative standard deviations (RSDs) of the peak areas were less than 2%, showing good repeatability. In addition, the recoveries of phthalates in various matrices were generally ranging from 60% to 110%. In conclusion, the developed method can help the trace analysis of phthalates in beverage, wine and milk. In order to strictly investigate the migration of phthalates from the daily food packages like plastic wraps and storage bags, iso-octane was used as the simulant of fatty foods. The migration determined using the above optimized method showing the significant migration existing in plastic wraps and some unqualified products in current market is not meeting the national regulations about the migration limits of phthalates.

Key words: dispersive solid-phase extraction, food packages, foods, gas chromatography-mass spectrometry, phthalates, plasticizers

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