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Title: Theory of solvation and its application to the supercritical fluid extraction/supercritical fluid chromatographic analysis of pharmaceuticals.
Author: Khundker, Sharmin.
ISNI:       0000 0001 3598 8782
Awarding Body: University of Northumbria at Newcastle
Current Institution: Northumbria University
Date of Award: 1996
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The roam objectives of this PhD project were to relate anal~ te solubility in supercritical carbon dioxide via molecular structure and also to investigate the factors that influence the solubility and extraction of analytes in a supercritical fluid extraction (SFE) when using carbon dioxide as the solvent. The polarity of an analyte was selected as the key parameter to developing a means of estimating steroid solubility in supercritical carbon dioxide. Polarity can be estimated by the hydrophobicity term, log P (based on partition coefficients), and also of the solubility parameter, 0,. The use of partition coefficient in conjunction with a calculated solubility parameter was demonstrated as a reasonable means of estimating steroid solubility in supercritical carbon dioxide. Experimental determination of the solubility of several steroid compounds with a range in polarities in supercritical carbon dioxide was carried out in order to correlate solute polarity to the solute solubility. A chromatographic method was also investigated based on capacity factor measurements for the prediction of steroid solubility in supercritical carbon dioxide. The application of supercritical fluid extraction (SFE) \\
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: Steroid hormone drugs; Antifungals; Animal feed