Chemosensor L derived from vitamin B6 cofactor pyridoxal-5-phosphate was investigated for the selective detection of Cu2+ and Fe3+ in aqueous medium. Sensor L formed a 1:1 complex with Cu2+ and displays a perceptible color change from colorless to yellow brown with the appearance of a new charge transfer band at ∼ 450 nm. In contrast, the fluorescence of L was quenched selectively in the presence of Fe3+ without any interference from other metal ions including Cu2+.
|Number of pages||4|
|Journal||Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy|
|State||Published - 1 Jan 2016|
Bibliographical noteFunding Information:
The authors wish to thank the Director, S.V. National Institute of Technology, Surat for providing necessary facilities and scholarship. This work was made possible by a grant from the DST SERB, New Delhi ( SR/S1/IC-54/2012 ).
© 2015 Elsevier B.V.
- Colorimetric sensor
- Fluorescent sensor
- Vitamin B cofactor