Journal
JOURNAL OF LIQUID CHROMATOGRAPHY & RELATED TECHNOLOGIES
Volume 29, Issue 15, Pages 2229-2244Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10826070600832913
Keywords
principal component analysis; cluster analysis; sample solvent effect; configurational unstability
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The dynamic HPLC was performed with the goal to estimate the influences on the configurational stability of diazepam conformers in chiral environment. The effect of sample solvent, temperature, flow rate, and pH of mobile phase on behaviour of diazepam conformers during their separation on chiral beta-cyclodextrin was studied. The separation of diazepam conformers was complicated due to simultaneous interconversion, which was the result of configurational instability of the diazepam molecule. A statistical approach was used for evaluation of the influence of individual chromatographic parameters on behaviour of diazepam in a given chiral environment. The Principal Component Analysis (PCA) and Cluster Analysis (CA) were applied for accurate interpretation of obtained results.
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