A colorimetric squaraine-based probe and test paper for rapid naked eyes detection of copper ion (II)

• Published in: Tetrahedron letters Vol. 59; no. 44; pp. 3930 - 3933
• Main Authors: Liu, Yang, Wang, Liqiu, Guo, Chenxiao, Hou, Yajuan
• Format: Journal Article
• Language: English
• Published: OXFORD Elsevier Ltd 31.10.2018; Elsevier
• Subjects: Chemistry; Chemistry, Organic; Colorimetric sensor; Copper ion; Naked eye detection; Physical Sciences; Science & Technology; Squaraine; Test paper; Test paper; Naked eye detection; Copper ion; Colorimetric sensor; Squaraine; CU2; FLUORESCENT; DYES; SENSOR

A colorimetric sensor MOESQ based on squaraine was synthesized to detect Cu2+ in CH3CN with the detection limit of 1.88 × 10−7 molL−1. By adsorbing MOESQ on the chromatography paper, a colorimetric test paper for Cu2+ was prepared, which could detect Cu2+ with the color change from blue to faint yel...