A colorimetric probe for dual sensing of Hg2+ and Cu2+ ions in water

作者：Sie Yi Wun; Li Chia Lin; Wan Chin Feng; Chen Jie Hong; Hu Ching Han; Yan Hongbin; Wu An Tai^*

来源：Inorganica Chimica Acta, 2017, 467: 325-329.

DOI：10.1016/j.ica.2017.08.035

• Chemosensor
• Water soluble
• Colorimetric

A colorimetric probe (L) was prepared and its metal ion sensing properties were investigated. Probe L exhibited obvious colorimetric response toward Hg2+ and Cu2+ with different color changes in water. The association constant for probe L-Hg2+ and probe L-Cu2+ in water containing 0.5% DMSO (v/v) was determined as 5.62 x 107 M-1 and 1.26 x 107 M-1, respectively. The detection limit of probe L for the analysis of Hg2+ and Cu2+ was determined as 0.19 ppm and 0.39 ppm, respectively. Moreover, probe L can be used for selective sensing of Hg2+ and Cu2+ based on the distinct color changes in real samples.

• 出版日期2017-10