Results 31 to 40 of about 75,944 (308)

Microfluidic preparative free-flow isoelectric focusing in a triangular channel: System development and characterization [PDF]

open access: yes, 2010
A preparative scale free-flow IEF device is developed and characterized with the aim of addressing needs of molecular biologists working with protein samples on the milligrams and milliliters scale.
Albrecht   +21 more
core   +1 more source

Separation of molecular species of sphingomyelin and ceramide by argentation and reversed-phase HPLC.

open access: yesJournal of Lipid Research, 1981
A convenient method for the separation of molecular species of complex lipids such as sphingomyelin and ceramide by argentation high performance liquid chromatography (HPLC) is described for the first time.
M Smith, P Monchamp, F B Jungalwala
doaj   +1 more source

Continuous preparative thin-layer chromatography [PDF]

open access: yes, 1967
A short survey of preparative chromatographic methods is given. An apparatus for general use in continuous preparative thin-layer chromatography is described, and its performance compared with some related preparative ...
Visser, K.
core   +2 more sources

Preparative separation and purification of bufadienolides from ChanSu by high-speed counter-current chromatography combined with preparative HPLC

open access: yesQuímica Nova, 2013
Eight bufadienolides were successfully isolated and purified from ChanSu by high-speed counter-current chromatography (HSCCC) combined with preparative HPLC (prep-HPLC).
Jialian Li   +6 more
doaj   +1 more source

Absolute Configuration of Falcarinol (9Z-heptadeca-1,9-diene-4,6- diyn-3-ol) from Pastinaca sativa [PDF]

open access: yes, 2013
Falcarinol (9Z-heptadeca-1,9-diene-4,6-diyn-3-ol; 1) is a polyacetylene commonly found in several plant families. The absolute configuration of naturally occurring 1 is not clear and contradictory results have been reported in the literature ...
Brunton, Nigel   +4 more
core   +1 more source

Preparative Isolation and Purification of Lignans from Justicia procumbens Using High-Speed Counter-Current Chromatography in Stepwise Elution Mode

open access: yesMolecules, 2015
Lignans, which are recognized as main constituents in Justicia procumbens, have attracted considerable attention due to their pharmacological activities, including antitumor, anti-hepatitic, cytotoxic, anti-microbial, and anti-virus properties ...
Peijuan Zhou   +8 more
doaj   +1 more source

Ethyl Acetate Extract of Dracocephalum heterophyllum Benth Ameliorates Nonalcoholic Steatohepatitis and Fibrosis via Regulating Bile Acid Metabolism, Oxidative Stress and Inhibiting Inflammation

open access: yesSeparations, 2022
Dracocephalum heterophyllum Benth is well-known for its ability to alleviate liver heat. In this study, Dracocephalum heterophyllum Benth ethyl acetate extracts were evaluated on mouse models of nonalcoholic steatohepatitis and liver fibrosis.
Yan Fang   +6 more
doaj   +1 more source

Preparative free-solution isotachophoresis for separation of human plasma lipoproteins: apolipoprotein and lipid composition of HDL subfractions

open access: yesJournal of Lipid Research, 2000
We have previously shown that plasma lipoproteins can be separated by analytical capillary isotachophoresis (ITP) according to their electrophoretic mobility in a defined buffer system.
Alfred Böttcher   +6 more
doaj   +1 more source

Antioxidant Activity of Daemonorops draco Resin

open access: yesJurnal Kimia Sains dan Aplikasi, 2019
Jernang resin is secretion of jernang rattan (Daemonorops draco, Arecaceae family) fruits which is endemic in Southeast Asia. This resin has various biological activities and empirically used as wound healing, headache medicines, and fever remedies by ...
Sri Purwanti   +2 more
doaj   +1 more source

Identification of ferredoxin II as a major calcium binding protein in the nitrogen-fixing symbiotic bacterium Mesorhizobium loti [PDF]

open access: yes, 2015
BACKGROUND: Legumes establish with rhizobial bacteria a nitrogen-fixing symbiosis which is of the utmost importance for both plant nutrition and a sustainable agriculture.
Damiani, Ernesto   +6 more
core   +1 more source

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