Results 41 to 50 of about 31,646 (295)

Characterization of preparation for fat separators

open access: yesNova Biotechnologica et Chimica, 2021
Fats, oils and greases in waste water frequently cause serious environmental problems. A commercial preparation was tested for its ability to degrade oil and grease in wastewater. As substrates, two fats (lard and beef fat) and four oils (rape seed oil, sunflower oil, palm oil and olive oil) were chosen.
Kateřina Illková   +3 more
openaire   +2 more sources

Purification of flavonoids and triterpene saponins from the licorice extract using preparative HPLC under RP and HILIC mode [PDF]

open access: yes, 2009
A four-channel preparative HPLC was employed to isolate and purify compounds from licorice extract. Two separation modes, RP and hydrophilic interaction LC (HILIC), were used in preparative HPLC.
Feng, Jiatao   +8 more
core   +1 more source

Influence of electrostatic interactions in electrophoretic membrane contactors [PDF]

open access: yes, 2002
In electrophoretic separators, a porous membrane is used to put into contact two flowing liquids between which an electrically driven mass transfer takes place.
Roux-de Balmann, Hélène   +1 more
core   +1 more source

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

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

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 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

Study of the mass transfer phenomena involved in an electrophoretic membrane contactor [PDF]

open access: yes, 2001
Electrophoretic separators, in which a porous membrane is used as a contactor, offer the possibility to scale up electrophoresis as well as to extend the field of application of electrodialysis to fractionate polyamino acids, peptides or small proteins ...
Roux-de Balmann, Hélène   +1 more
core   +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

A new solvent system for the separation of neutral glycosphingolipids.

open access: yesJournal of Lipid Research, 1981
A solvent system and a column for high performance liquid chromatography for the separation of glycosphingolipids without derivatization is described.
K Watanabe, Y Arao
doaj   +1 more source

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