摘要
本文基于纸基微流控技术,构建了一种基于Pb^(2+)、Cr^(6+)、Fe^(3+)以及NO_(2)^(-)多离子可视化检测的纸基微流控芯片,其具有可携带以及即时检测等优点,在水体离子污染检测方面具有潜在的应用价值。该纸芯片利用流体的亲疏水性质构建了具有样品收集区、检测区的微平台,通过四种离子的不同显色反应可以实现对多离子的可视化检测,并且通过软件进行RGB色度分析,在0到20 ppm浓度范围内构建了色彩强度值RGB与NO_(2)^(-)浓度变化的定量检测分析标准曲线,根据该曲线计算出检出限为0.405 ppm,同时该纸芯片也可以完成对其他三种离子即时定性的检测。
This study based on the paper microfluidic technology,aimed to construct a chip for Pb^(2+);Cr^(6+);Fe^(3+)and NO_(2)^(-)multiple ions visual detection.This paper-based microfluidic chip obtained the benefits of portability and real-time detection and owned the potential application in the water pollution detection.By utilizing the hydrophilic and hydrophobic of the fluid,the paper chip was constructed with sample collecting area and detection area.To achieve the visual effect,this study utilized the different chromogenic reactions to identify the ions,and with the RGB chrominance analysis,a standard curve was constructed between the RGB value and the nitrite ion concentration with the nitrite ion concentration ranging from 0 ppm to 20 ppm.The LOD of NO_(2)^(-)was 0.405 ppm.In addition,this paper chip could realized other 3 ions real time qualitative detection simultaneously.
作者
王璐瑶
郭雅丹
WANG Lu-yao;GUO Ya-dan(Department of Chemistry,Baotou Teachers'College,Baotou 014030,China)
出处
《化学研究与应用》
CAS
北大核心
2024年第1期48-55,共8页
Chemical Research and Application
基金
内蒙古自然科学基金青年项目(2022QN02004)资助
包头师范学院科研启动金项目(BTTCRCQD2020-008)资助。
