食品油样本的灵敏元素分析,使用水友性欧性混合物作为绿色溶剂,在电化学控制的液液微提取中进行液微提取
Andrea Marco1, Borja Pertusa1, Miguel Ángel Aguirre1
1Department of Analytical Chemistry, Nutrition and Food Science and University Institute of Materials (IUMA), University of Alicante, Spain.
Analytica chimica acta
|November 24, 2025
概括
一种新的电化学增强液-液微提取 (EC-LLME) 方法提供了一种绿色和高效的方法来检测食用油中的有毒金属. 这种可持续的方法避免了有害的溶剂,为消费者安全提供了准确的结果.
科学领域:
- 分析化学 分析化学
- 环境科学 环境科学
- 食品安全 食品安全
背景情况:
- 由于健康风险和监管标准,分析食用油中的有毒金属至关重要.
- 传统的从油中提取金属的方法往往是低效的,耗时的,并且使用危险的溶剂.
- 需要可持续和有效的技术来从复杂的石油矩阵中提取微金属.
研究的目的:
- 开发和验证一种绿色,电化学增强的微提取方法,用于食用油中微金属分析.
- 评估该方法在不同类型的食用油中的效率和适用性.
- 为传统的提取技术提供更安全,更可持续的替代品.
主要方法:
- 开发了一种电化学增强的液体液体微提取 (EC-LLME) 技术.
- 作为提取剂,使用基于胆化物的深溶解剂 (CC:EG, 1:2) .
- 优化了提取参数,包括样品质量,提取剂体积,提取时间和应用潜力,使用两步实验设计.
主要成果:
- 该EC-LLME方法表现出极好的线性 (5-500μg kg−1) 和高可重复性 (CV ≤6%).
- 达到Cd,Cu,Fe,Ni和Pb的低检测极限,Cu的值低至0.09μg kg−1.
- 在真实和经过认证的样本中,几乎100%的回收证实了最小的矩阵效应,在测试的油中,没有分析物超出法律限制.
结论:
- EC-LLME方法是一种新,可持续和有效的技术,用于提取和量化食用油中的微量金属.
- 该方法的环保性质,避免有害溶剂,使其成为植物油中微量金属识别的宝贵工具.
- 这种方法提供了卓越的分析性能和安全性,适合常规食品安全分析.
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