Open AccessDetection of Anti-viral Drug Riamilovir and Herbicides in Aqueous Media by Using Pyrene-based Fluorescent Chemosensors
Author(s) -
Igor S. Коvalev,
Leila К. Sadieva,
Olga S. Taniya,
Dmitry S. Kopchuk,
G. V. Zyryanov,
Evgeny N. Ulomsky,
В. Л. Русинов,
О. Н. Чупахин
Publication year - 2021
Publication title -
chimica techno acta
Language(s) - English
Resource type - Journals
eISSN - 2411-1414
pISSN - 2409-5613
DOI - 10.15826/chimtech.2021.8.2.08
Subject(s) - pyrene , fluorescence , chemistry , detection limit , analyte , quenching (fluorescence) , aqueous solution , nitro , combinatorial chemistry , chromatography , photochemistry , organic chemistry , physics , alkyl , quantum mechanics
Two ethyleneglycol esters of 1-pyrene carboxylic acid were studied as chemosensors for the fluorescence “turn-off” detection of two nitro-containing analytes, such as antiviral drug Riamilovir (Triazavirin ®) and herbicidal agent dinitro-ortho-cresol (DNOC). In both cases the dramatic fluorescence quenching was observed with quenching constants as high as 3·104 M-1 and limits of detection (LOD) as low as 100 ppb.