Interaction of water-soluble vitamins with a new HPLC stationary phase based on zinc phthalocyanate

详细信息

下载全文

推荐本文 |

• 作者：S. M. Matusova (1) sonichka_2001@mail.ru
  G. D. Brykina (1)
  O. A. Shpigun (1)
• 刊名：Russian Journal of Physical Chemistry A ; Focus on Chemistry
• 出版时间：July 2006
• 出版年：2006
• 期刊代码：pc384_0036-0244
• 类别：ch
• 卷：80
• 期：7
• 页码：1175-1177
• 数据来源：sp

摘要

The adsorption of water-soluble vitamins on the surface of Diaspher-110-C₁₈ sorbent modified with zinc octa-4,5-carboxyphthalocyanate is studied. Adsorption isotherms are constructed and calculated by the Gl眉cauf method at 20掳C. It is established that the shape of the isotherms depends on the nature of vitamins and their structure: the isotherm of vitamin C is a Henry-type isotherm, the isotherms of vitamins B₃ and B₆ are of S-type, and the isotherm of vitamin PP-amide is of L-type. Monolayer capacities, adsorption equilibrium constants, and Gibbs energy changes are calculated.