智能手机辅助的双面毛细管微流体装置用于饮用水中的重金属和营养素的多重检测
Pornchanok Punnoy1, Prakash Aryal2, Claire E Hefner2
1Department of Materials Science, Faculty of Science, Chulalongkorn University, Soi Chula12, Phayathai Road, Pathumwan, Bangkok, 10330, Thailand.
Analytica chimica acta
|April 27, 2025
概括
本研究引入了一种基于纸张的新型传感器,用于快速地在现场检测多种水污染物,包括重金属和营养物质,克服当前方法的局限性.
科学领域:
- 分析化学 分析化学
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
背景情况:
- 由重金属和营养物质造成的水污染是全球面临的重大挑战.
- 传统的基于实验室的检测方法是准确的,但成本高且耗时.
- 现有的纸质传感器存在一些局限性,例如测试时间缓慢,无法同时检测多种污染物.
研究的目的:
- 开发一种低成本,快速和多重传感器,用于同时检测水中的重金属和营养物质.
- 通过使用用户友好的平台,实现现场,实时的水质监测.
主要方法:
- 在纸质基板上设计了一种毛细血管流动驱动的双面检测系统.
- 多重检测 (Ni),铁 (Fe),铜 (Cu),化物 (NO2-),酸盐 (PO43-) 在一个步骤中实现.
- 综合了定性视觉分析和定量智能手机应用程序分析.
主要成果:
- 传感器展示了对五种关键污染物的快速,同时检测.
- 定量分析显示,所有测试分析物的检测和量化极限都很低.
- 使用掩盖策略实现了高选择性,传感器稳定性超过4周.
- 在各种水样中进行的尖峰恢复测试产生了准确的结果 (86-112%),变化率低 (<15% RSD).
结论:
- 开发的多重传感器有效地解决了当前基于纸张的分析设备的局限性.
- 它为多种污染物类别提供了全面的现场水质评估.
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