基于1-o-Tolyl) -thiourea的深溶解剂作为一个静态阶段在流量注入分析系统中用于食用油中的和铜的确定
Andrey Shishov1, Ulyana Markova1, Valeriia Mulloyarova1
1Institute of Chemistry, Saint-Petersburg University, Saint Petersburg State University, SPbSU, SPbU, 7/9 Universitetskaya nab., St. Petersburg, 199034, Russia.
Talanta
|October 23, 2024
概括
一种新型的深溶解剂 (DES) 能够有效地从食用油中提取和铜. 这种方法提供了一种强大,高效和环保的方式来确定微量金属.
科学领域:
- 分析化学 分析化学
- 材料科学 材料科学 材料科学
背景情况:
- 准确确定食用油中的微量金属,如和铜,对于食品安全至关重要.
- 现有的金属分析方法可能是复杂和耗时的.
研究的目的:
- 引入一种用于金属提取的新型深度浸泡溶剂 (DES).
- 开发一种自动流量注入分析系统,用于同时确定食用油中的和铜.
主要方法:
- 合成了一种由提摩尔和1-O-Tolyl-thiourea组成的新型DES,并将其作为微提取柱中的静止相使用.
- 该系统采用微波矿化,其次是流量注入分析与诱导合的等离子光辐射光谱学 (ICP-OES) 相结合.
主要成果:
- 该方法实现了对 (3μg L-1) 和铜 (2.5μg L-1) 的低检测极限.
- 证明了高提取回收 (>95%) 和良好的可复制性 (RSD 311%).
- 环境评估显示环境指数有利 (0.54).
结论:
- 流量注入分析系统中的基于DES的新型静止相提供了一种高效,准确和环保的微金属测定方法.
- 这种方法适用于分析食用油和潜在的其他样本矩阵.
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