✦ LIBER ✦

Study on the kinetic process of the complex reaction between bilirubin and cyclodextrins

✍ Scribed by Jianjun Niu; Guangjin Cheng; Shaojun Dong

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 491 KB
Volume: 39
Category: Article
ISSN: 0013-4686
DOI: 10.1016/0013-4686(94)e0150-m

No coin nor oath required. For personal study only.

✦ Synopsis

The complex behavior of bilirubin (BR) with /?-CD (cyclodextrin) and y-CD in aqueous and dimethylformamide (DMF) solution was investigated by absorption spectroscopy and cyclic voltammetry, respectively. The data shows that the complexation mechanisms in these two solvents are different. In aqueous solution, the complexes of BR$-CD and BR-y-CD were formed by internal inclusion reactions, while in DMF, they were formed by external, non-inclusion ways. The dissociation constants obtained for these complexes are K,, = 9 5 x 10T4 M, K,, = 5.1 x 10e4 M in aqueous solution and K,, = 12.5 x 10m2 M, K,, = 1.73 x IO-'M in DMF, respectively.

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