Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1234549 | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2009 | 4 Pages |
Abstract
Formation of inclusion complexes between riboflavin and β-cyclodextrin (β-CD) with both 1:1 and 1:2 stoichiometry has been established by fluorimetric titration. However, in absorption spectrometric experiment, spectral change of riboflavin in the visible range could be observed only by taking β-CD at a much higher concentration (about 100 times) than riboflavin and under such condition only 1:2 complexes could be detected. Its formation constant (K) was determined by a multiple linear regression analysis of the absorption data. The reliability of the K value was confirmed by the consistency achieved on analyzing the data at two different wavelengths.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Dalim Kumar Roy, Nipamanjari Deb, Bankim Chandra Ghosh, Asok K. Mukherjee,