학술논문
Estimation of tolerance limits of inorganic quenchers on LED fluorimetric determination of uranium.
Document Type
Article
Source
Subject
*URANIUM
*FLUORESCENCE quenching
*FLUORESCENCE
*
*
Language
ISSN
0236-5731
Abstract
This study reports the tolerance limits of a few inorganic quenchers on uranium fluorescence in presence of five different fluorescence enhancing reagents (FER) used in fluorimetric technique with LED (405 nm) as the excitation source. Fluorescence enhancing capacities of five different phosphate based reagents are compared. A 2 °C rise in temperature quenches the U fluorescence by 5% in all the FERs. Quenching effects of 11 ions in terms of their characteristic half concentration (C1/2) values were established. Based on the C1/2 values quenchers are classified as weak, moderate and strong. [ABSTRACT FROM AUTHOR]