Fluorescent probe based on triphenylamine as matrix, preparation of fluorescent probe and application of fluorescent probe in copper-silver double ion detection

Abstract

The invention discloses a fluorescent probe based on triphenylamine as a matrix, preparation of the fluorescent probe and application of the fluorescent probe in copper-silver double ion detection. The structural formula of the fluorescent probe is shown as a formula I in the specification. Triphenylamine and benzothiazole hydrazine are used as fluorophores, the fluorescent probe NSN capable of simultaneously detecting copper ions and silver ions is prepared through Schiff base condensation, and the prepared novel probe NSN shows high sensitivity and high selectivity to Cu<2+> and Ag<+> in a solution; and the preparation method of the fluorescent probe is simple, raw materials are easy to obtain, and the obtained product is solid powder, is easy to store and has relatively high application and development prospects.

Description

technical field

[0001] The invention belongs to the technical field of fluorescent probes, and in particular relates to a fluorescent probe based on triphenylamine as a matrix, its preparation and its application in the detection of copper-silver double ions. Background technique

[0002] Copper (Cu) is the third most abundant and indispensable trace element in living biological systems and is found in the active part of several essential metalloenzymes (Cu 2+ ) deficiency can increase the risk of developing neurodegenerative diseases. At the same time, the accumulation of high concentrations of copper ions may also cause damage to the central nervous system, inducing Alzheimer's and Parkinson's risk diseases. According to the health organization guidance report provided by the World Health Organization, the maximum allowable concentration of copper ions in drinking water is 2ppm; in blood, Cu 2+ The concentration should not exceed 100-150lg / dl. In addition, high concentr...

Images