Thermal Destruction of Riboflavin in Different Aggregate States

Autor:	A. R. Faizullaev, Eldar N. Kurtaliev, Salikh Kh. Astanov, Negmat Nizomov, M. Z. Sharipov
Rok vydání:	2014
Předmět:	Absorbance Aqueous solution Chemistry Riboflavin Absorption (chemistry) Atmospheric temperature range Condensed Matter Physics Photochemistry Spectroscopy Linear dichroism Luminescence
Zdroj:	Journal of Applied Spectroscopy. 81:37-42
ISSN:	1573-8647 0021-9037
DOI:	10.1007/s10812-014-9883-z
Popis:	The influence of temperature on the spectroscopic properties of powders and aqueous solutions of riboflavin was studied using NMR, linear dichroism, IR and UV absorption spectroscopy, and luminescence. It was found that exposure of riboflavin powders over a wide temperature range (290–423 K) did not change significantly its properties and spectral characteristics. The absorbance and fluorescence of aqueous solutions of riboflavin decreased under the same conditions due to riboflavin thermal destruction. The fraction of destroyed molecules in aqueous solutions of riboflavin was in the range 4–28% and depended on the drug concentration and thermal conditions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::fc1a1866c6c377801ca88aa96da55a10 https://doi.org/10.1007/s10812-014-9883-z Zobrazit plný text záznamu Plný text ve formátu PDF