Abstract
This paper designed and synthesized a simple fluorescent probe L to detect Ba2+ based on pyridoxal and picolinylhydrazide, which was characterized by 1H NMR, 13C NMR and HRMS. Probe L not only presented high selectivity for Ba2+ on various cations, but also had a lower detection limit (6.351 × 10−6 M) at EtOH/H2O (1/1, v/v, pH = 7.4) with a binding ratio of 2:1. Experimental results demonstrate that the proposed probe L can detect real water and food salt efficiently, and then achieve recoveries ranged from 96%–100% and 75%–101% respectively.
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