Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1234954 | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2009 | 5 Pages |
Abstract
N-Methyl-α,β,γ,δ-tetraphenylporphine (NMTPPH) has been used to detect trace amount of zinc ions in ethanol-water solution by fluorescence spectroscopy. The fluorescent probe undergoes a fluorescent emission intensity enhancement upon binding to zinc ions in EtOH/H2O (1:1, v/v) solution. The fluorescence enhancement of NMTPPH is attributed to the 1:1 complex formation between NMTPPH and Zn(II) which has been utilized as the basis for the selective detection of Zn(II). The linear response range covers a concentration range of Zn(II) from 5.0 Ã 10â7 to 1.0 Ã 10â5 mol/L and the detection limit is 1.5 Ã 10â7 mol/L. The fluorescent probe exhibits high selectivity over other common metal ions except for Cu(II).
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Qiu-Juan Ma, Xiao-Bing Zhang, Yan Zhao, Chun-Yan Li, Zhi-Xiang Han, Guo-Li Shen, Ru-Qin Yu,