The dependence on ionic strength of the protonation of water-insoluble flavonoids chrysin and daidzein in NaClO4 non-aqueous solutions
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- 作者：Morteza Jabbari ; m_jabari@du.ac.ir" class="auth_mail" title="E-mail the corresponding author ; Sedigheh Khosravinia
- 关键词：Proton dissociation equilibria ; Chrysin ; Daidzein ; Ionic strength effect ; SIT approach ; NaClO4 non-aqueous ethanol media
- 刊名：Journal of Molecular Liquids
- 出版年：2016
- 出版时间：April 2016
- 年：2016
- 卷：216
- 期：Complete
- 页码：216-223
- 全文大小：645 K
文摘
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The ionic strength effects on the protonation of some flavonoids in non-aqueous solutions of NaClO4 have been analyzed.
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The mixture of ethanol-water (1:1 v/v) was used for dissolve flovonoids studied.
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Data were processed using the program STAR for calculation of the protonation constants.
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The dependence on ionic strength of the constants was modeled by means of the Specific Ion Interaction Theory (SIT).
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The thermodynamic functions ΔG0 for the protonation processes were calculated at different ionic strengths.