Title
A turn-on dansyl-based fluorescent chemosensor for the recognition of Pb2+
Author
Chia-Lin Li, Ping-hsuan Lu, Sheng-Yuan Lin, An-Tai Wu
Year
2019
Journal
Journal of Photochemistry and Photobiology A: Chemistry
Abstract
In this study, a naphthalene-1-sulfonamide/2-hydroxybenzaldehyde conjugation as a selective probe (probe L) was designed for the selective recognition of Pb2+. Probe L displayed an obvious fluorescence enhancement upon binding to Pb2+ in CH3CN solution. The association constant of probe L-Pb2+ complex was calculated to be 7.68 × 108 M−1, and the detection limit for Pb2+ was found to be 23.2 ppb.
Instrument
V-630, FP-8300
Keywords
Absorption, Fluorescence, Sensors, Ligand binding, Materials