植物纤维食品包装材料中增塑剂、有机氯农药检测技术的研究

发布时间：2018-08-15 15:29

【摘要】：食品包装材料是指包装、盛放食品用的纸、竹、木、金属、陶瓷、塑料、橡胶、天然纤维、化学纤维、玻璃、复合包装等制品。由于绿色环保的要求以及成本因素，植物纤维被广泛应用于食品包装材料，，其在加工制型中可能含有残留的增塑剂和有机氯农药，这些残留的物质可以通过包装迁移污染食品，从而影响到食品安全，导致人类健康受到威胁。本文建立了七种植物纤维食品包装中（纸杯、玉米淀粉盒、纸浆快餐具、一次性餐盒、玉米淀粉牙签、飞机餐盒、汉堡包装）五种增塑剂和十三种有机氯农药残留的超声提取、固相萃取净化及气相色谱分析的方法。首先，选择以正己烷、丙酮和正己烷的混合液为提取溶剂，采用超声提取法分别对七种植物纤维食品包装样品中的增塑剂和有机氯农药进行提取。其次，增塑剂提取液采用硅胶固相萃取柱净化，正己烷溶解。有机氯农药提取液经弗洛里硅土固相萃取柱净化，正己烷溶解，待分析。最后，待分析液经带有FID和ECD检测器的毛细管气相色谱仪进行分析。实验结果表明，本论文所建立的方法可靠、简单易行，为植物纤维食品包装中增塑剂和有机氯残留的研究提供有力依据，也对今后制定其它材料中增塑剂、有机氯残留的检测方法提供参考。
[Abstract]:Food packaging materials refer to paper, bamboo, wood, metal, ceramics, plastics, rubber, natural fiber, chemical fiber, glass, composite packaging and other products used for packaging and holding food. Due to environmental protection requirements and cost factors, plant fibers are widely used in food packaging materials, which may contain residual plasticizers and organochlorine pesticides in the processing type, which can be transported to contaminate food through packaging. As a result, food safety is affected and human health is threatened. In this paper, ultrasonic extraction of five plasticizers and thirteen organochlorine pesticide residues in seven kinds of vegetable fiber food packaging (paper cup, corn starch box, pulp cutlery, disposable meal box, corn starch toothpick, airplane meal box, Hamburg packaging) was established. Methods of solid phase extraction purification and gas chromatographic analysis. Firstly, using the mixture of n-hexane, acetone and n-hexane as the extraction solvent, the plasticizer and organochlorine pesticide in seven kinds of vegetable fiber food packaging samples were extracted by ultrasonic extraction method. Secondly, the plasticizer extract was purified by silica gel solid-phase extraction column and dissolved in n-hexane. The organochlorine pesticide extract was purified by Flori-silica solid phase extraction column and dissolved in hexane. Finally, the liquid was analyzed by capillary gas chromatograph with FID and ECD detector. The experimental results show that the method established in this paper is reliable, simple and practical, which provides a powerful basis for the study of plasticizers and organochlorine residues in vegetable fiber food packaging, and also provides a useful basis for the formulation of plasticizers in other materials in the future. The method for the determination of organochlorine residues is provided as a reference.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：R155.5

【相似文献】