为资源有限的地区开发具有成本效益的无机提取方法:效率分析和监管影响
Angstone Thembachako Mlangeni1, Elizabeth Mhone1, Alexander Ndhlovu Chibwana1
1Faculty of Life Sciences and Natural Sciences, Lilongwe University of Agriculture and Natural Resources, Lilongwe, Malawi.
Heliyon
|September 26, 2024
概括
焦炭提取有效地测量了大米中的无机 (iAs),为标准酸方法提供了可靠和经济高效的替代方案,特别是在资源有限的环境中.
科学领域:
- 食品安全分析 食品安全分析
- 分析化学 分析化学
- 环境科学 环境科学
背景情况:
- 大米中污染对公众健康构成重大风险.
- 准确确定无机 (iAs) 对于监管合规至关重要.
- 需要现场部署的方法来快速评估食品中的含量.
研究的目的:
- 评估焦炭和水作为大米中的IA的替代提取方法.
- 为了比较它们的有效性与标准酸 (HNO3) 方法使用现场套件.
- 评估这些新型提取技术的可靠性和监管适用性.
主要方法:
- 使用焦炭,水和1%v/v HNO3的IA提取效率的比较.
- 使用现场部署的Arsenator套件进行样本分析.
- 通过IA回收率和统计相关性 (Pearson) 评估提取性能.
主要成果:
- 焦炭提取显示IA回收率最高 (127.4%),其次是水 (116.2%) 和HNO3 (100%).
- 焦炭和HNO3方法之间有很强的相关性 (r=0.990),表明焦炭的可靠性.
- 汁提取表现出局限性,在MCL的虚假阴性率较高 (17%).
结论:
- 焦炭提取是一种具有成本效益和可靠的替代方案,用于在米中确定IA.
- 建议进一步标准化焦炭提取协议,以便广泛采用.
- 改进的IA检测方法对于确保食品安全和保护公众健康免受污染至关重要.
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