%0 Journal Article
%T Determination of iron in chinese herbal medicine based on the fluorescence quenching of rhodamine 6G
%A Yilin Wang
%A Jianping Lu
%A Hong Yang
%J Bulletin of the Chemical Society of Ethiopia
%D 2009
%I Chemical Society of Ethiopia
%X A fluorescence quenching method was developed for determination of Fe3+ with rhodamine 6G as fluorescent reagent. Fe3+ reacting with KI in diluted sulfuric acid produced I3- anion which reacted subsequently with rhodamine 6G to form a non-fluorescence compound. As a result, the compound quenched the fluorescence intensity of the system. The fluorescence intensity decreased linearly with the Fe3+ concentration in the range from 20 to 200 ¦Ìg/L. The detection limit was 8.3 ¦Ìg/L. This method has been applied to determine the iron in Chinese herbal medicine with satisfactory results.
%K Rhodamine 6G
%K Fluorescence quenching
%K Iron
%U http://www.ajol.info/index.php/bcse/article/view/21307