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| Research Progress on Non-intentionally Added Substances in Recycled Plastics for Food Contact and Their Discrimination Methods |
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| DOI： |
| KeyWord:recycled plastics non-intentionally added substances mass spectrometry spectroscopy thermoanalysis technology chemometrics discrimination |
| Author | Institution |
| CHEN Zhi-feng，HAO Tian-ying，LIN Qin-bao，ZHONG Huai-ning，WANG Zhi-wei |
1. Key Laboratory of Product Packaging and Logistics of Guangdong Higher Education Institutes，Packaging Engineering Institute，Jinan University，Zhuhai ，China; 2. National Reference Laboratory for Food Contact Material（Guangdong），Guangzhou Customs District Technology Center， Guangzhou ，China |
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| Abstract: |
| With the increasing pollution of plastic waste，the recycling of plastic has attracted much attention．Food contact materials have become an important object of plastic recycling，but the non-intentionally added substances（NIAS） in recycled plastics are a major difficulty for their ultilization in food contact materials．In order to avoid the recycled plastics that do not meet regulations appearing in food contact materials market and endangering the health and safety of consumers，the discrimination technology for recycled plastics is very essential．Research on NIAS in recycled plastics and the discrimination of virgin and recycled plastics at home and abroad is summarized in this paper．At present，the main discrimination methods for recycled plastics mainly include mass spectrometry，spectroscopy and thermal analysis technology．In recent years，chemometrics has gradually been used in the discrimination on recycled plastics，which improves the efficiency and accuracy of discrimination. |
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