Results 261 to 270 of about 75,944 (308)

Preparative—Semipreparative Separations of Peptides

ChemInform, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
Denis B. Scanlon, James Finlayson
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Preparation and separation of methyl ethers of d-arabinose

Analytical Biochemistry, 1972
Abstract All possible methyl ethers of methyl β- d -arabinofuranoside and methyl β- d -arabinopyranoside were prepared by partial methylation using Kuhn's method (Ag2O and MeI in N,N-dimethylformamide) and Haworth's method (Me2SO4 and 40% NaOH in water).
P A, Mied, Y C, Lee
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Chiral lumazines: Preparation, properties, enantiomeric separation

Chirality, 1994
AbstractOptically active lumazines (biolumazine, dictyolumazine, monalumazine, and neolumazine) are prepared from the corresponding pterins by enzymatic reaction, using pterin deaminase excreted by Dictyostelium discoideum. The fluorescence properties, circular dichroism spectra, and chromatographic behavior of these lumazines are studied.
R, Klein, I, Tatischeff, G, Tham, N, Mano   +3 more
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Preparation and Separation of DNA‐Wrapped Carbon Nanotubes

Current Protocols in Chemical Biology, 2015
AbstractPurification of single‐chirality single‐wall carbon nanotubes (SWCNTs) from their synthetic mixture is a prerequisite for many applications. DNA‐controlled carbon nanotube (CNT) purification has evolved over a decade along with other separation techniques utilizing different types of dispersing agents such as surfactants and polymers.
Geyou, Ao, Ming, Zheng
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Preparative Electrophoretic Separation of Antibody Forming Cells

Preparative Biochemistry, 1972
Abstract A procedure is described for preparative electrophoretic separation of lymphoid cells. The separations were performed with a free flow electrophoretic cell separator model VAP IV (Desaga, Heidelberg, Bender & Hobein, Munich, Brinkmann Instruments, Westbury, N. Y.).
K, Zeiller, G, Pascher, K, Hannig
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Membrane Chromatography: Preparation and Applications to Protein Separation

Biotechnology Progress, 1999
As a result of the convective flow of solutes through porous membranes, membrane chromatography has a higher capture efficiency and a higher productivity than column chromatography and shows most promising industrial applications for the recovery, isolation, and purification of proteins and enzymes.
X, Zeng, E, Ruckenstein
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Separation of interleukins by a preparative chromatofocusing-like method

Journal of Chromatography A, 1993
A chromatofocusing-like method used in the large-scale separation of deamidated from amidated recombinant human interleukin-1 alpha (amino acids 117-271), derived from Escherichia coli, is described. Two major protein species having isoelectric points (pI) of approximately 5.3 and 5.1 were separated by high-performance liquid chromatography using a ...
S P, Monkarsh, E A, Russoman, S K, Roy
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On Preparative Separation of Brain Mitochondrial Monoamine Oxidases

Preparative Biochemistry, 1979
A method was developed for solubilization from bovine brain stem mitochondrial fraction of monoamine oxidases deminating biogenic amines. Preparative separation of the monoamine oxidases, possessing different substrate specificities, was achieved by column chromatography on a biospecific adsorbent AH-Sepharose 4 B. The enzyme preparations thus obtained
T A, Moskvitina, N S, Kamyshanskaya, T G, Garishvili, V Z, Gorkin   +3 more
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Borosilicate nanoparticles prepared by exothermic phase separation

Nature Nanotechnology, 2008
Nanoparticles play an important role in chemical and biological sciences due to their ability to bind and concentrate many molecules on their surface. Polymers and silica are widely used to make nanoparticles, but efforts to make nanoparticles from borosilicate glass--which exhibits high tolerance to chemicals and solvents, combined with excellent ...
Parashar VK, Orhan JB, Sayah A, Cantoni M, Gijs MA   +4 more
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Preparative-scale isoelectric trapping enantiomer separations

Journal of Chromatography A, 2003
The new Gradiflow BF200 IET unit, developed for isoelectric trapping protein separations has been modified and used to carry out preparative-scale enantiomer separations. Hydroxypropyl beta-cyclodextrin was used as the chiral resolving agent to induce an isoelectric point difference between the enantiomers.
Evan, Shave, Gyula, Vigh
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