Si Linxing, Wu Qian, Jin Yulong, Wang Zhuo
State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, China.
Front Chem. 2024 May 28;12:1423666. doi: 10.3389/fchem.2024.1423666. eCollection 2024.
Food safety is the basis for ensuring human survival and development. The threat of heavy metal ions to food safety has become a social concern with the rapid growth of the economy and the accompanying environmental pollution. Some heavy metal ions are highly toxic even at trace levels and pose significant health risks to humans. Therefore, ultrasensitive detection of heavy metal ions in food samples is important. In this mini-review, recent advances in the analytical methods based on nanomaterials for detecting trace heavy metal ions in food samples are summarized in three categories: electrochemical, colorimetric, and fluorescent methods. We present the features and sensing mechanisms of these three methods, along with typical examples to illustrate their application in the detection of heavy metal ions in foods. This mini-review ends with a discussion of current challenges and future prospects of these approaches for sensing heavy metal ions. The review will help readers understand the principles of these methods, thereby promoting the development of new analytical methods for the detection of heavy metal ions in food samples.
食品安全是保障人类生存与发展的基础。随着经济的快速增长以及随之而来的环境污染，重金属离子对食品安全的威胁已成为社会关注的问题。一些重金属离子即使在痕量水平下也具有高毒性，对人类健康构成重大风险。因此，对食品样品中的重金属离子进行超灵敏检测至关重要。在本综述中，基于纳米材料用于检测食品样品中痕量重金属离子的分析方法的最新进展被归纳为三类：电化学方法、比色法和荧光法。我们介绍了这三种方法的特点和传感机制，并列举典型实例来说明它们在食品中重金属离子检测中的应用。本综述最后讨论了这些重金属离子传感方法当前面临的挑战和未来前景。该综述将有助于读者理解这些方法的原理，从而推动食品样品中重金属离子检测新分析方法的发展。
