Title
A Minimalist Approach for Distinguishing Individual Lanthanide Ions Using Multivariate Pattern Analysis
Author
Biswajit Roy, Tiasha Saha Roy, Sk. Atiur Rahaman, Koel Das, Subhajit Bandyopadhyay
Year
2018
Journal
ACS Sensors
Abstract
To discriminate among the 14 trivalent lanthanide ions, curcumin, a naturally occurring, nontoxic, off-the-shelf, commercially available compound containing a single fluorophore, was chosen as a probe in the water media at pH 6.8 and pH 8.2. By measuring the emission and absorption spectra of the probe, under the different pH conditions, and by performing linear discriminant analysis on the data, 14 Ln3+ ions were discriminated. Additionally, an easy tool for the nonspecialists was developed with easily available household substances, using a smartphone app, which added an extra advantage to this single probe. This probe possesses advantageous features in terms of low-cost and instant on-site detection of the lanthanide ions.
Instrument
FP-8300
Keywords
Fluorescence, Quenching, Chemical stability, Optical properties, Sensors, Materials