Results 251 to 260 of about 75,944 (308)

A Chromatographic Method for the Preparative Separation of Phosphohistidines

Analytical Biochemistry, 1998
The driving force behind this new chromatographic technique was to develop a method for purifying preparative quantities of phosphohistidines in a single step that provided good resolution wit eluants that could be easily removed. The current method can provide milligram quantities of each phosphohistidine; however, the later 1H NMR analysis of the ...
P G, Besant, L, Byrne, G, Thomas, P V, Attwood   +3 more
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Separation methods for glycoprotein analysis and preparation

Journal of Chromatography B: Biomedical Sciences and Applications, 1997
Several chromatographic methods have been developed for the isolation and characterization of glycoproteins. In these methods, affinity chromatography, a single-step method, or combined use with general chromatographic methods have now become essential for the purification of many biologically important glycoproteins, including alpha1-acid glycoprotein,
S, Kishino, K, Miyazaki
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Ibuprofen Agglomerates Preparation by Phase Separation

Drug Development and Industrial Pharmacy, 1999
The compression ability and dissolution rate of ibuprofen are poor. There are many processes to optimize these properties through adapted formulations. However, it would be more satisfactory to obtain directly during the crystallization step crystalline particles that can be directly compressed and quickly dissolved.
M, Jbilou, A, Ettabia, A M, Guyot-Hermann, J C, Guyot   +3 more
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A convenient method for preparative peptide separation

Analytical Biochemistry, 1972
Abstract A chromatographic system has been developed for the separation of peptides on a preparative scale. The principle of the method is to use the peptide bond absorbance in the 200–250 nm wavelength range as the basis for the peptide detection, and therefore to use only inorganic buffers that are transparent at these low wavelengths ...
C C, Chin, F, Wold
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Study on preparation and separation of Konjac oligosaccharides

Carbohydrate Polymers, 2013
To study the preparation and separation of Konjac oligosaccharides, Konjac Glucomannan was degraded by the combination of γ-irradiation and β-mannanase, and then the degradation product was separated by ultrafiltration. To our interest, for most of Konjac oligosaccharides obtained by this method, the molecular mass was lower than 2200 Da.
Wenjie, Jian, Yuanming, Sun, Huan, Huang, Youhui, Yang, Shuhui, Peng, Bo, Xiong, Tingtiao, Pan, Zhenlin, Xu, Mingxiang, He, Jie, Pang   +9 more
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Separations of enantiomers by preparative capillary isotachophoresis

Electrophoresis, 1999
The use of capillary isotachophoresis (ITP), operating in a discontinuous fractionation mode, for preparative separations of enantiomers of chiral compounds was studied. The ITP separations were carried out in the column-coupling configuration of the separation unit provided with the preseparation column of a 1.0 mm ID and the trapping column of a 0.8 ...
D, Kaniansky, E, Simunicova, E, Olvecká, A, Ferancová   +3 more
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Preparation and separation of complexes prepared by template polymerization

Macromolecules, 1990
La polymerisation de l'acide acrylique amorcee par K 2 S 2 O 8 sur une matrice de poly(vinylpyrrolidone) en milieu aqueux donne un complexe des 2 polymeres interagissant par liaisons hydrogenes. La separation des 2 polymeres se fait avec complexe greffe.
Saeed Al-Alawi, N. A. Saeed
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Preparative separation of tetrahydrofurfurylamine enantiomers

Russian Journal of Organic Chemistry, 2007
Tetrahydrofurfurylamine enantiomers were separated on a preparative scale by fractional crystallization of diastereoisomeric salts with natural L-tartaric acid. (R)-Tetrahydrofurfurylamine was isolated in 68% yield with an optical purity of more than 98.5% according to the HPLC data.
D. M. Musatov, V. S. Kublitskii, O. R. Malyshev, D. V. Kurilov, M. G. Vinogradov   +4 more
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Bottom‐Up Preparation of Phase‐Separated Polymersomes

Macromolecular Bioscience, 2023
AbstractA bottom‐up approach to fabricating monodisperse, two‐component polymersomes that possess phase‐separated (“patchy”) chemical topology is presented. This approach is compared with already‐existing top‐down preparation methods for patchy polymer vesicles, such as film rehydration.
Safa Almadhi, Joe Forth, Laura Rodriguez‐Arco, Aroa Duro‐Castano, Ian Williams, Lorena Ruiz‐Pérez, Giuseppe Battaglia   +6 more
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Techniques in Preparative Chiral Separations

ChemInform, 2001
AbstractFor Abstract see ChemInform Abstract in Full Text.
Pilar Franco, Cristina Minguillon
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