饮用水中含砷阴离子的可视化检测

This project aims at the visual detection of trace arsenic anions in drinking water. In contrast to the organic arsenic compounds with low toxicity, the inorganic arsenic anions are highly toxic. Affected by the geological structures, shallow groundwater is highly prone to be contaminated by excessive amounts of inorganic arsenic anions, and the intake of such arsenic-rich water has already threaten and even damaged the human health of some areas and countries. The World Health Organization (WHO) regulates the concentration of arsenic anions in drinking water to be lower than 10 µg/L, and this low detection limit is a great challenge for the modern analytical methods. To date, the majority of detection methods are reliant on massive and expensive instruments, which are incompatible with the "in-situ" and "on-site" analysis. In consideration of this fact, it is imperative to develop cheap, fast, and accurate visual methods for the arsenic anions.

本项目旨在研究饮用水中低浓度含砷阴离子的可视化检测。不同于低毒性的有机砷化合物，无机砷阴离子具有显著毒性。受到地质结构等因素影响，浅层地下水中极有可能存在含量超标的无机砷阴离子，长期饮用此类富砷水源已经严重威胁到部分国家和地区人口的健康安全。世界卫生组织规定饮用水中含砷阴离子浓度不得超过10 µg/L，低检出限对现代分析方法提出了更高的要求。当前已发展的大多数检测方法均以笨重昂贵的仪器为基础，无法满足现场快速检测要求。基于此，发展廉价、快速、准确的可视化检测方法具有十分重要意义和价值。

本项目旨在研究饮用水中低浓度含砷阴离子的可视化检测。不同于低毒性的有机砷化合物，无机砷阴离子具有显著毒性。受到地质结构等因素影响，浅层地下水中极有可能存在含量超标的无机砷阴离子，长期饮用此类富砷水源已经严重威胁到部分国家和地区人口的健康安全。世界卫生组织规定饮用水中含砷阴离子浓度不得超过10 μg/L，低检出限对现代分析方法提出了更高的要求。当前已发展的大多数检测方法均以笨重昂贵的仪器为基础，无法满足现场快速检测要求。基于此，发展廉价、快速、准确的可视化检测方法具有十分重要意义和价值。