Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10557500 | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2005 | 7 Pages |
Abstract
The present work aimed at describing the spectral behaviour of the serotonin and to evaluate its acidity constants using three different methods, using two spectrophotometry titrations and a third method that involved point-by-point analysis, which permitted to monitor closely and determine the evolution of the serotonin species in solution as a function of time. The three methods allowed estimation of three acidity constants associated to the same number of functional groups that form part of the molecule. The results given by the point-by-point analysis were: log β1 = 24.95 ± 0.12; log β2 = 20.20 ± 0.10; log β3 = 10.89 ± 0.018.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
S. Corona-Avendaño, M.A. Romero-Romo, A. Rojas-Hernández, M.T. RamÃrez-Silva,