Zobrazeno 1 - 10
of 74
pro vyhledávání: '"S. Guermouche"'
Publikováno v:
Chemical Papers. 74:1133-1142
Oxidative degradation of Bilastine has been investigated using hydrogen peroxide agent. An RP-HPLC assay method is developed and validated for quantitative determination of Bilastine in tablets. The chromatography is performed using Waters Symmetry C
Publikováno v:
Chemical Papers. 71:1693-1703
A simple and rapid isocratic oil-in-water microemulsion HPLC method (MELC) has been developed for the analysis of ibuprofen in oral suspension formulation. The method was optimized for simultaneous separation and determination of Ibuprofen and its re
Publikováno v:
Chromatographia. 80:265-274
A stability-indicating HILIC method was developed for analysis of Citicoline in the presence of its degradation products. It was performed using Atlantis HILIC Si column (50 × 4.6 mm, 3 µm particle size) and a mobile phase constituted by 70% of ace
Three Nematogen Azobenzene-Based Stationary Phases for Capillary GC: Synthesis and Comparative Study
Autor:
Azzedine Addoun, Ouassila Ferroukhi, Moulay Hassene Guermouche, Mohamed Dahmane, Jean Pierre Bayle, S. Guermouche
Publikováno v:
Chromatographia. 77:1367-1377
In this paper, three laterally substituted liquid crystals termed LCC1, LCC3 and LCC4 were synthesized. Characterization of these substances was carried out by 1H NMR and 13C NMR; they possess similar core and differ in their lateral substituents. Th
Publikováno v:
Journal of Liquid Chromatography & Related Technologies. 34:1913-1924
A simple, selective, linear, accurate, and precise HPLC method using a monolithic silica column was developed and validated for rapid assay to the quality control of Oseltamivir phosphate in capsules. Isocratic elution at a flow rate of 3 mL · min
Autor:
Patrick Judenstein, J. P. Bayle, Faiza Ammar-Khodja, S. Guermouche, Moulay-Hassane Guermouche
Publikováno v:
Chromatographia. 70:497-502
A new monotropic liquid crystal with crown ether substituent called Substance M was synthetized and characterized by several methods: 1H NMR, hot stage polarizing microscopy, differential scanning calorimetry and inverse gas chromatography. Annealing
Publikováno v:
Journal de Physique IV (Proceedings). 113:21-24
A thermodynamic study of 4 liquid crystals with DOE substituents using gas chromatography are carried out. The 4 compounds have the same mesogenic part; they differ by the partial or total substitution of the terminal chain heptyloxy with 2-(2-methox
Autor:
S. Guermouche, M.H. Guermouche
Publikováno v:
Journal de Physique IV (Proceedings). 113:17-20
Micellar liquid chromatography allows to determine micelle-water equilibrum constant K MW . Capacity factors of fifty solutes of various polarities are measured using cationic and anionic micellar mobilephase and a C 18 silica column. The solvatochro
Autor:
F. Ammar-Khodja, M. Rogalski, S. Guermouche, M. H. Guermouche, Ewa Rogalska, J. P. Bayle, Patrick Judeinstein
Publikováno v:
Chromatographia. 57:249-253
The thermodynamics of four new liquid crystals were investigated in order to understand their selectivity as stationary phases in gas chromatography. In this case study, liquid crystals with a benzoyloxy azobenzene mesogenic core substituted with hep
Publikováno v:
Journal of Chromatography A. 971:87-94
A new bonded liquid crystal stationary phase (2OC 12 ) for high-performance liquid chromatography was studied. It resulted from coupling of LiChrospher Si 100 NH 2 and a mesogenic carboxylic acid, 4-(4-(4-(3,4-didoceyloxy-styrenyl)phenyl-diazenyl)phe