Detection of anti-viral drug riamilovir and herbicides in aqueous media by using pyrene-based fluorescent chemosensors / I. S. Kovalev, L. K. Sadieva, O. S. Taniya [et al.] // Chimica Techno Acta. - 2021. - Vol. 8, № 2. - P20218208 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): COVID-19 -- RIAMILOVIR -- TRIAZAVIRIN -- DETECTION IN AQUEOUS MEDIA -- FLUORESCENCE QUENCHING Аннотация: 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. |