简化葡萄酒中的金属分析:通过AAS或便携式电化学传感器进行简单的检测的矩阵净化
Taisiia Sikolenko1, Elias Bou-Maroun2, Laurence Noret2
1Université Bourgogne Europe, Institut Agro, INRAE, UMR PAM, F-21000 Dijon, France; Olisens, F-69006 Lyon, France.
Food chemistry
|July 29, 2025
概括
一种新方法简化了葡萄酒样品的测试准备,避免了强酸. 这种方法使用固相提取 (SPE) 清洁样品和精确的定量通过原子吸收光谱 (AAS) 或电化学传感器.
科学领域:
- 分析化学 分析化学
- 环境科学 环境科学
- 食品科学 食品科学 食品科学
背景情况:
- 传统的葡萄酒中测定方法往往需要强烈的酸性消化,这引发了安全和环境问题.
- 葡萄酒样本中的矩阵干扰可能会使准确的量化复杂化.
- 开发高效和环保的样本准备技术对于食品安全分析至关重要.
研究的目的:
- 开发一种精简和温和的样品制备方法,用于葡萄酒中的确定.
- 评估通过固体相提取 (SPE) 清洗葡萄酒矩阵的有效性.
- 为了使用石墨炉原子吸收光谱 (AAS) 和便携式电化学传感器实现准确的量化.
主要方法:
- 采用通过固相提取 (SPE) 的清洁方法,使用聚合物 styrene-divinylbenzene sorbent.
- 净化葡萄酒样本中的含量使用石墨炉原子吸收光谱法 (AAS) 确定.
- 还验证了使用便携式电化学传感器 (MetalSens) 的替代量化方法.
主要成果:
- SPE清理有效地消除了有机干扰,而不影响检测,达到94-101%的回收率.
- 该方法最大限度地减少了 pyrolytic AAS 平台的污染,并允许 SPE 弹重复使用多达五次.
- 与参考AAS测量相比,电化学测定显示偏差在15%以内,表明高精度.
结论:
- 拟议的SPE方法为分析的葡萄酒样本准备提供了一种温和,高效和可重复使用的方法.
- 这种技术可促进快速准确的测定,适用于实验室和现场应用.
- 该方法提高了葡萄酒中量化的可靠性,同时降低了样品制备的复杂性和环境影响.
相关概念视频
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