文献类型：期刊文献

英文题名：A paper-based microfluidic analytical device combined with home-made SPE column for the colorimetric determination of copper(II) ion

作者：Wu, Qijun He, Jiaqi Meng, Hu Wang, Yu Zhang, Yu Li, Hui Feng, Liang

第一作者：Wu, Qijun;吴其俊

通信作者：Feng, L[1]

机构：[1]Guizhou Inst Technol, Sch Chem Engn, Guiyang 550003, Guizhou, Peoples R China;[2]Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Separat Sci Analyt Chem, Dalian 116023, Liaoning, Peoples R China

第一机构：贵州理工学院化学工程学院

通信机构：corresponding author), Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Separat Sci Analyt Chem, Dalian 116023, Liaoning, Peoples R China.

年份：2019

卷号：204

起止页码：518-524

外文期刊名：TALANTA

收录：;EI(收录号：20192507059755);Scopus(收录号：2-s2.0-85067192081);WOS:【SCI-EXPANDED(收录号:WOS:000480664200063)】；

基金：This work was financially supported through the National Natural Science Foundation of China (Grant 21667010, 21804132, 21677144). The work was also supported by the Chinese Academy of Sciences (100 Talents Program).

语种：英文

外文关键词：Paper-based microfluidic analytical device; Solid phase extraction; Copper(II) ion; Colorimetric detection

摘要：Monitoring of copper(II) ion is critical for water safety. Herein, a solid phase extraction (SPE) column filled with home-made sulfonated PS-DVB microspheres was adopted to eliminate interference from other co-existing ions. Meanwhile, 1-(2-pyridylazo)-2-naphthol (PAN) as colorimetric reactant was dispersed in polyvinyl butyral (PVB) and immobilized on the filter paper. The as-fabricated paper-based microfluidic analytical device (mu PAD) combined with home-made SPE column was utilized for the selective and quantitative determination of copper (II) ion. The selectivity and sensitivity for copper(II) ion were significantly enhanced by SPE-combined mu PAD. The sensor has a noticeable color change in the presence of copper(II) ion. The limit of detection was as low as 0.340 mu M, which is much less than the drinking water guidelines in many countries and organizations. This technology is convenient and does not need any expensive instrumentation and professional skills. It is easily used to achieve rapid and on-site assessment of copper(II) ion in real-world situations.