使用激发发射矩阵光谱学与并行因子分析相结合,在食用油中快速而非破坏性地检测子[a]二烯
Hubin Liu1, Zhixiang Zhang1, Yifan Jing1
1College of Information and Electrical Engineering, China Agricultural University, Beijing, China.
Food chemistry
|January 10, 2026
概括
一种新方法使用光光谱学和PARAFAC快速检测可食用油中的[a]烯 (BaP),而无需预处理. 这种技术提供了一种快速,准确和非破坏性的方法,用于现场查这种强烈的致癌物质.
科学领域:
- 分析化学 分析化学
- 食品安全 食品安全
- 频谱学是一种光谱学.
背景情况:
- 甲 (BaP) 是一种致癌污染物,存在于高温加工的食品中,通常在食用油中含有微量.
- 传统的BaP检测方法耗时,昂贵,需要大量的样本准备,限制了它们用于快速查的使用.
研究的目的:
- 开发一种快速,非破坏性的方法,直接检测可食用植物油中的[a]烯 (BaP).
- 为了在不需要复杂的样品预处理的情况下对BaP进行现场查.
主要方法:
- 组合激发发射矩阵光 (EEMF) 光谱与并行因子分析 (PARAFAC) 用于直接检测BaP.
- 集成的外部校准,PARAFAC和常规最小平方 (OLS) 回归用于定量分析.
- 验证了该方法的线性响应范围 (1-500μg/L) 和适用于没有内部波效应的复杂矩阵的适用性.
主要成果:
- 通过EEMF-PARAFAC方法,成功地将BaP与加植物油 (花生,大豆,玉米) 中的其他光成分区分开来.
- 实现了高于10μg/L的BaP精确量化,花生/玉米油的特定检测极限为1μg/L,大豆油的特定检测极限为7.5μg/L.
- 在没有样本预处理的情况下,在复杂的食品矩阵中进行直接定量分析的证明.
结论:
- 拟议的EEMF-PARAFAC方法是快速,方便,灵敏和准确的,用于在食用油中的现场BaP查.
- 这种方法对于工业质量控制,监管监督和进出口检查有价值.
- 该框架提供了一种可通用的策略,用于检测复杂的石油矩阵中的其他有毒污染物.
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