Study On The Determination And Migration Of Poisonous And Harmful Substance In Aluminum-plastic Packaging

Chapter 1:This chapter summarizes the aluminum-plastic composite food packaging development present situation, problems and causes of the food and food contact materials safety. On basic of these problems, the regulations about the aluminum-plastic composite food packaging and adhesive at home and abroad are discussed, as well as the advances in this field have been reviewed. Our own research and creative content were put forward according to these reviews.Chapter 2:This chapter selects the inductively coupled plasma mass spectrometry (ICP-MS) to measure nine kinds of heavy metal content in the aluminum-plastic composite food packaging, according to compare different digestion methods and optimize the experimental conditions, as well as in commercial beef packing.Chapter 3:This chapter studies the aluminum migration behaviors in food packaging to two kinds of food simulation (3% acetic acid solution and water), based on the inductively coupled plasma mass spectrometry (ICP-MS). The effects of time, temperature and food simulations were discussed for migration.Chapter 4:In this chapter, using gas chromatography-mass spectrometry (GC-MS) to explore unknown chemical composition in the food packaging. Choosing different extraction solvents and the optimization of the chromatographic column experiments, and combining with the retention index and comparing the NIST database,36 kinds of unknown chemicals was identified.Chapter 5:The main innovation and guiding significance for actual detection of this paper were summarized and the prospects of these aspects were made for expectation.