A fluorescent probe for zinc ions based on N-methyltetraphenylporphine with high selectivity

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/H 2O (1:1, v/v) solution. The fluores...

Full description

Saved in:
Bibliographic Details
Published inSpectrochimica acta. Part A, Molecular and biomolecular spectroscopy Vol. 71; no. 5; pp. 1683 - 1687
Main Authors Ma, Qiu-Juan, Zhang, Xiao-Bing, Zhao, Yan, Li, Chun-Yan, Han, Zhi-Xiang, Shen, Guo-Li, Yu, Ru-Qin
Format Journal Article
LanguageEnglish
Published England Elsevier B.V 2009
Subjects
Fluorescence enhancement
Fluorescent Dyes - pharmacology
Fluorescent probe
Ions - chemistry
Metalloporphyrins - chemistry
Models, Biological
NMTPPH
Porphyrins - chemistry
Substrate Specificity
Zinc - analysis
Zinc - chemistry
Zinc ions
Zinc ions
NMTPPH
Fluorescent probe
Fluorescence enhancement
Online AccessGet full text

Cover

More Information
Summary: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/H 2O (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 × 10 −7 to 1.0 × 10 −5 mol/L and the detection limit is 1.5 × 10 −7 mol/L. The fluorescent probe exhibits high selectivity over other common metal ions except for Cu(II).
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1386-1425
DOI:10.1016/j.saa.2008.06.020