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Ismahan Rahou Nasser Belboukhari Khaled Sekkoum Abdelkarim Cheriti Hassan Y. Aboul-Enein 《Chromatographia》2014,77(17-18):1195-1201
The HPLC enantiomeric separation of seven 4-iminoflavans was successfully accomplished in the normal phase mode using six polysaccharide-based chiral stationary phases namely, Chiralcel®OD-H, Chiralcel®OD, Chiralcel®OJ, Chiralpak®AD, Chiralpak®IA and Chiralpak®IB under normal and polar organic phase modes. The resolution depended on nature and concentration of alcoholic modifier. The results demonstrate clearly that the chromatographic system based on the coated and immobilized type Chiralpak®IB and Chiralcel®OD-H CSPs provide a powerful analytical tool for enantiomeric separation of all the 4-iminoflavans used in this study. 相似文献
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Urolithiasis can lead to the loss of renal function in some cases. In this study, we tested the inhibiting effect of wheat bran (Triticum aestivum L) extract on calcium oxalate crystallization in a turbidimetric model, by FTIR spectroscopy, and polarized microscopy. The results show that this plant extract has a major inhibitory effect on calcium oxalate crystallization. 相似文献
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The chromatographic and electrophoretic methods developed for the chiral and achiral analyses if antifungal agents are reviewed. The aim of this review is to compare different methodologies of analytical methods and to explore still the existing analytical problems. Last decade is characterized by dynamic development of instrumental methods that results in advance and diversity of applied analytical procedures. The enantiomeric separation of several compounds, including an antifungal drug and several of its precursors, using high-performance liquid chromatography (HPLC) and capillary electrophoresis (CE) is described in this work. The main focus was given to HPLC, the technique of choice in the analysis of most of the pharmaceutical formulations and biological samples. The columns used were based on polysaccharide derivatives. However, the results show that most of the separations obtained by CE are better, in terms of high resolution and short analysis time. The review discusses the chromatographic analysis of the following triazole antifungal drugs: fluconazole, itraconazole, and terconazole from the first generation and posaconazole, voriconazole, ravuconazole, isavuconazole, and albaconazole from the second generation in their pharmaceutical formulations and biological samples. 相似文献
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Rahou Ismahan Belboukhari Nasser Sekkoum Khaled Cheriti Abdelkarim Aboul-Enein Hassan Y. 《Chromatographia》2014,77(17):1195-1201
The HPLC enantiomeric separation of seven 4-iminoflavans was successfully accomplished in the normal phase mode using six polysaccharide-based chiral stationary phases namely, Chiralcel®OD-H, Chiralcel®OD, Chiralcel®OJ, Chiralpak®AD, Chiralpak®IA and Chiralpak®IB under normal and polar organic phase modes. The resolution depended on nature and concentration of alcoholic modifier. The results demonstrate clearly that the chromatographic system based on the coated and immobilized type Chiralpak®IB and Chiralcel®OD-H CSPs provide a powerful analytical tool for enantiomeric separation of all the 4-iminoflavans used in this study.
相似文献
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