A new fluorescence from carboxylic and amino acids

Autor:	R. Linari, F. Ricchelli, M. Bacci, B. Salvato
Rok vydání:	1985
Předmět:	chemistry.chemical_classification Fluorescence intensity chemistry Ionic strength Yield (chemistry) Carboxylic group General Physics and Astronomy Photochemistry Fluorescence Excitation Amino acid
Zdroj:	Il Nuovo Cimento D. 6:393-404
ISSN:	0392-6737
DOI:	10.1007/bf02451898
Popis:	A new fluorescence band at (400÷430) nm for many carboxylic and amino acids is reported. An excitation band with a maximum around 330 nm is always observed, while further bands can be present at lower wave-lengths. The dependence of the fluorescence intensity has been studied as a function of ionic strength, temperature, concentration andpH. ThepH of the solution strongly affects the fluorescence yield which reaches its maximum atpH lower than 2. This suggests the main role of undissociated carboxylic group as responsible for the observed fluorescence. Finally, an interpretation of the experiments is suggested on the basis of the theoretical analysis available up to now.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bc6d0d67a99a698674f76c555b6bffb8 https://doi.org/10.1007/bf02451898 Zobrazit plný text záznamu Full text from SpringerLink