Results 271 to 280 of about 2,527,192 (329)

Preparative separation of caffeoylquinic acid isomers from Lonicerae japonicae Flos by pH-zone-refining counter-current chromatography and a strategy for selection of solvent systems with high sample loading capacities.

Journal of Chromatography A, 2018
Caffeoylquinic acid derivatives exhibit anti-inflammatory, antioxidant, and antibacterial activities. We successfully applied pH-zone-refining counter-current chromatography (pH-ZRCCC) to separation of isomeric caffeoylquinic acids from Lonicerae ...
Tianyu Ma, Hongjing Dong, Heng Lu, Hengqiang Zhao, Lanping Guo, Xiao Wang   +5 more
semanticscholar   +1 more source

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
openaire   +2 more sources

Application of coordination agent in high-speed counter-current chromatography for the preparative separation and isolation ginkgolic acids from the sarcotesta of Ginkgo biloba L.

Journal of Separation Science, 2018
An efficient coordination high-speed counter-current chromatography method for the preparative separation of ginkgolic acids from the sarcotesta of Ginkgo biloba L was developed.
Heng Zhu, Hailong Jiang, Jinqian Yu, Xiangyun Song, Hengqiang Zhao, Jingchao Li, Y. Geng, Daijie Wang   +7 more
semanticscholar   +1 more source

Preparative Separation of Mixtures by Mass Spectrometry

Analytical Chemistry, 2005
A specially designed mass spectrometer which allows for preparative separation of mixtures is described. This mass spectrometer allows for large ion currents, on the order of nanoamperes, to be produced by electrospray and transmitted into a high vacuum.
Philip S, Mayer, Frantisek, Turecek, Hak-No, Lee, Adi A, Scheidemann, Terry N, Olney, Frank, Schumacher, Petr, Strop, Martin, Smrcina, Marcel, Pátek, Daniel, Schirlin   +9 more
openaire   +2 more sources

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 ...
Virendra K, Parashar, Jean-Baptiste, Orhan, Abdeljalil, Sayah, Marco, Cantoni, Martin A M, Gijs   +4 more
openaire   +2 more sources

Preparative—Semipreparative Separations of Peptides

ChemInform, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
Denis B. Scanlon, James Finlayson
openaire   +1 more source

Preparative separation of phloridzin from apple leaves using macroporous resins followed by preparative high-performance liquid chromatography.

Journal of Separation Science, 2018
Phloridzin is one of the major phenolic compounds in apple and has been widely used in medicine for a long time due to its significant biomedical activities.
Hongjuan Li, Guige Hou, Yuanyuan Li, Feng Zhao, Wei Cong, Chunhua Wang   +5 more
semanticscholar   +1 more source

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
openaire   +2 more sources

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
openaire   +2 more sources

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
openaire   +2 more sources