浅析PET瓶中乙醛含量检测与QB/T 2357-1998标准的局限性
An Analysis of the Detection of Acetaldehyde Content in PET Bottles and the Limitations of the QB/T 2357-1998 Standard
摘要: PET瓶内的乙醛残留问题关乎食品的安全以及消费者的健康状况，目前QB/T 2357-1998标准对乙醛含量有着明确的规定，在实际应用过程中却存在着灵敏度不高、适用性差等缺陷。常用的乙醛检测方法，如气相色谱法、液相色谱法和酸性气体检测法等存在一些优点，但是其精确度、成本以及操作复杂程度等方面还存在着问题。为提升乙醛检测准确率、提高可操作性，建议细化标准并确定乙醛含量的划分标准，增加对生产过程的动态监测。并且对现有的检测技术进行改善，采用高速的检测方式和大数据监控相结合的方式，从而能够更好地控制乙醛的存在，让食品包装更加安全。
Abstract: The residual acetaldehyde in PET bottles is closely related to food safety and consumer health. While the current QB/T 2357-1998 standard provides clear regulations on acetaldehyde content, there are issues with low sensitivity and limited applicability in its practical implementation. Common acetaldehyde detection methods, such as gas chromatography, liquid chromatography, and acidic gas detection, have certain advantages but still face challenges in terms of accuracy, cost, and operational complexity. To improve the accuracy of acetaldehyde detection and enhance operability, it is recommended to refine the standards and establish classification standards for acetaldehyde content, along with incorporating dynamic monitoring of the production process. Additionally, improving existing detection technologies by adopting high-speed detection methods combined with big data monitoring will better control acetaldehyde presence, ensuring safer food packaging.
文章引用：张琳琳, 杨欢, 吕锐利, 赵克志, 王晓娟. 浅析PET瓶中乙醛含量检测与QB/T 2357-1998标准的局限性[J]. 食品与营养科学, 2025, 14(6): 873-878. https://doi.org/10.12677/hjfns.2025.146096

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