Results 41 to 50 of about 132,429 (302)
Continuous preparative thin-layer chromatography [PDF]
, 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
An investigation of the roles furan versus thiophene π-bridges play in donor–π-acceptor porphyrin based DSSCs [PDF]
, 2018 Dye-sensitized solar cells (DSSCs) continue to attract interest due to their lower cost production compared to silicon based solar cells and their improving power conversion efficiencies. Porphyrin-based sensitizers have become an important sub-class due
Abdalhadi, Saifaldeen M. +7 more
core +1 more source
Molecules, 2013 pH-Zone refining counter-current chromatography was successfully applied to the preparative isolation and purification of six alkaloids from the ethanol extracts of Uncaria macrophylla Wall. Because of the low content of alkaloids (about 0.2%, w/w) in U.
Qinghai Zhang +4 more
doaj +1 more source
Chromatographic Techniques to Separate and Identify Bioactive Compounds in Microalgae
Frontiers in Energy Research, 2022 Microalgae are potential sources for the sustainable production of valuable chemicals including polyphenols, pigments, and ω-3 PUFAs. However, successful exploitation of these high value compounds in the food, healthcare and pharmaceutical sectors ...
Hossein Kiani +7 more
doaj +1 more source
Speciation without chromatography: Part I. Determination of tributyltin in aqueous samples by chloride generation, headspace solid-phase microextraction and inductively coupled plasma time of flight mass spectrometry [PDF]
, 2001 An analytical procedure was developed for the determination of tributyltin in aqueous samples. The relatively high volatility of the organometal halide species confers suitability for their headspace sampling from the vapour phase above natural waters or
Lam, J. +4 more
core +1 more source
Química Nova, 2011 Preparative high-speed counter-current chromatography (HSCCC) was successfully applied for separation and purification of sesquiterpenoids from an extract of Tussilago farfara L.
Daijie Wang +4 more
doaj +1 more source
Absolute Configuration of Falcarinol (9Z-heptadeca-1,9-diene-4,6- diyn-3-ol) from Pastinaca sativa [PDF]
, 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
FEBS Letters, EarlyView.Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho +3 more
wiley +1 more source
Cell wall target fragment discovery using a low‐cost, minimal fragment library
FEBS Letters, EarlyView.LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan +5 more
wiley +1 more source
Isolation of Phenolics from by Combined Counter-current Chromatography and Gel-Filtration
Natural Product Communications, 2014 Nine phenolic compounds, quercetin, epi -catechin, catechin, 4-hydroxybenzoic acid, kaempferol 3- O -β-glucopyranoside, quercetin 3- O -β-glucopyranoside, quercetin 3- O -6″- trans -coumaroyl-β-glucoside, kaempferol 3- O -β-rutinoside and quercetin 3- O -
Fernanda das Neves Costa +3 more
doaj +1 more source