[PDF] Top 20 A study of carbohydrate stationary phases for the separation of enantiomers by high performance liquid chromatography

... Cellulose 2.0g; Avicel, Merck, 12.35 mmols, Note: the number of mmols is calculated based on the assumption the one gluco unit C6H1005 has a molecular weight of 162 previously dried for [r] ... See full document

... this study, they investigated the use of ESI-MS compatible mobile phases for chiral HPLC ...the separation of enantiomers of benzoin, indapamide, 2- phenylbutyric acid, 3-phenylbutyric acid, ... See full document

... based phases in RP-HPLC became evident after the appearance of new pellicular phases in 2010 ...these phases consist of a diamond or carbon core, covered with multilayers of ND particles and a ... See full document

... The performance of carbon-clad zirconia (CCZ) stationary phase was evaluated for the separations of test compounds (benzaldehyde, benzamide, nitrobenzene, and toluene) and alkyl aryl ketones (acetophenone, ... See full document

... reversed-phase liquid chromatographic media. Conventional reversed- phases typically separate on the basis of polarity, shape, and size of the solute, while carbon phases separate on the basis of ... See full document

... ionic liquid 1-allyl-3-methylimidazolium chloride (AmimCl) as a reaction solvent, cellulose-tris(3,5- dimethylphenylcarbamate) (CDMPC) was synthesized by the reaction of 3,5-dimethylphenyl isocyanate and soluble ... See full document

... Standards of synthetic colorants Quinoline yellow (95%), Tartrazine (99%), Sunset yellow (95%), Fast green FCF (98%), Green S (98%), Indigo carmine (98%), and Patent blue (97%) were purchased from Fluka (Germany). ... See full document

... gas chromatography- mass spectrometry (GC-MS) [3], liquid chromatography- mass spectrometry (LC-MS) [4,5] and high-performance liquid chromatography (HPLC) with UV ... See full document

... phases is a very important parameter for extraction of target analyte. It can influence the transfer of analyte from the donor sample solution to the organic membrane solvent, and then to the acceptor phase to ... See full document

... analytical separation science retains the practicality and principles of HPLC while increasing the overall interrelated attributes of speed, sensitivity and ...ultra performance liquid ... See full document

... An assay has been developed for simultaneous estimation of Ofloxacin and Ornidazole in tablet formulations. The separation was achieved by using C-18 column (Phenomenax, 250 x 4.6mm i.d.) in mobile phase ... See full document

... Today, chromatography is the backbone of separation science and is being used in all research laboratories and pharmaceutical industries of the ...these chromatography techniques, HPLC is one of the ... See full document

... The standard bulk drug (API) of Albuterol (99.95% purity) was obtained from Supriya Lifescience Limited, Mumbai. The acetonitrile was in this research by HPLC grade, where other chemicals were high purity with ... See full document

... a high recovery and enrichment factor, the effect of different parameters such as kind and volumes of the extractant and disperser solvents and salt addition on the extraction efficiency of B 1b and B 1a were ... See full document

... of high strength concrete reinforced with metallic and non metallic ...The study investigates the mechanical properties such as compressive strength, tensile strength, flexural toughness and flexural ... See full document

... Identification of bioactive compound was performed by thin layer chromatography (TLC) on silica plates (60F254, aluminium backed, 200 μm layer thickness, 10.0 x 5.0 cm). The presence of flavonoids, phenyl ... See full document

... The hydroxy derivatives of polyamines, 2-hydroxyputrescine (abbreviated as H-4 or H-Put) and γ (3)-hydroxyagmatine (H-Agm) found in some leguminous seeds and seedlings (Hamana et al., 1993), were not detected in the ... See full document

... The use of herbal products for the prevention and treatment of various health ailments has been in practice from time immemorial. Generally it is believed that the risk associated with herbal products is very less, but ... See full document

... The salting-out influence is widely used to increase the extraction recovery of uncharged target compounds from aqueous sample. It consists in decreasing the solubility of uncharged compounds in donor phase by increasing ... See full document

... layer chromatography revealed the presence of xanthophylls, chlorophyll and β-carotene in the isolated green algal ...this study, using an optimized method of HPLC, trace pigments were also ... See full document