Title of article
A thermodynamic study of two anionic amphiphilic penicillins in aqueous solution by ultrasound speed measurements
Author/Authors
Taboada، نويسنده , , Pablo and Gutiérrez-Pichel، نويسنده , , Manuel and Barbosa، نويسنده , , Silvia and Mosquera، نويسنده , , V??ctor، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2003
Pages
6
From page
29
To page
34
Abstract
The critical concentrations of sodium cloxacillin and sodium dicloxacillin penicillins in aqueous solution were determined over the temperature range 288.15–313.15 K by a method based on deconvolution into Gaussians of the second derivative of the measured ultrasound velocity. The mass action model was used to calculate the thermodynamic standard quantities: free Gibbs energy, enthalpy and entropy of aggregate formation. The results are discussed in terms of the structure of the drug aggregates.
Keywords
Dicloxacillin , Cloxacillin , Critical concentrations , Ultrasound velocity , thermodynamic quantities
Journal title
Colloids and Surfaces A Physicochemical and Engineering Aspects
Serial Year
2003
Journal title
Colloids and Surfaces A Physicochemical and Engineering Aspects
Record number
1786033
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