Results 11 to 20 of about 461,642 (309)
Journal of Chromatography A, 2015 The importance of the generated temperature and pressure gradients in ultra-high-pressure liquid chromatography (UHPLC) are investigated and compared to high-pressure liquid chromatography (HPLC). The drug Omeprazole, together with three other model compounds (with different chemical characteristics, namely uncharged, positively and negatively charged)
Åsberg, D. +5 more
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Analytical Science Advances, 2021 The present contribution discusses recent advances in ultra‐high‐pressure liquid chromatography (UHPLC) and multi‐dimensional liquid chromatography (MDLC) technology.
Jelle De Vos +4 more
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Preparation and Antioxidant Activities of Phenylethanoids from Dracocephalum heterophyllum
Separations, 2022 The health benefits of Dracocephalum heterophyllum are widely reported in traditional Tibetan medicines, but the reported chemical composition is limited, probably due to difficulties in separating and purifying compounds.
Yue Lv +6 more
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STRUCTURE OF METHYLPHEOPHORBIDE-RCI [PDF]
, 1986 he methanolic extract of the cyanobacterium (blue-green alga) Spirulina geitleri has been treated with methanolic acid to convert all chlorophyllous pigments to their methylpheophorbides.
Budzikiewicz H. +27 more
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Ultra-High-Pressure Liquid Chromatography ☆ [PDF]
, 2017 One decade has passed since the introduction of commercial ultra-high-pressure liquid chromatography (UHPLC) technology and columns packed with sub-2-μm particles, which has led to significant improvements in separation efficiency and sample throughput. This article outlines fundamental and practical aspects of UHPLC.
Eeltink, Sebastiaan, De Vos, Jelle
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Separation of the natural retinoids by high-pressure liquid chromatography
Journal of Lipid Research, 1978 A reverse phase high-pressure liquid chromatography system for rapid separation of various retinoids (vitamin A and its analogs) with little or no degradation is described. This method permits detection of as little as 22 pmol of retinoic acid.
C A Frolik, T E Tavela, M B Sporn
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Application of New Supercritical Extraction Technology in Extraction and Separation of Effective Components of Traditional Chinese Medicine [PDF]
MATEC Web of Conferences, 2021 Supercritical CO2 extraction technology uses supercritical CO2 fluid as extractant to extract and separate effective components from plants from liquid or solid. At present, CO2 is widely used in supercritical fluid, with a critical temperature of 31.265
Cheng Lijuan
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High pressure liquid chromatography solvent systems for studies of bile acid biosynthesis.
Journal of Lipid Research, 1988 Reversed phase high pressure liquid chromatography (HPLC) solvent systems have been developed for the separation of intermediates in the formation of bile acids and bile acid conjugates from cholesterol.
K Prydz, B F Kase, J I Pedersen
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Current developments in LC-MS for pharmaceutical analysis [PDF]
, 2002 The current developments in liquid chromatography-mass spectrometry (LC-MS) and its applications to the analysis of pharmaceuticals are reviewed. Various mass spectrometric techniques, including electrospray and nanospray ionization, atmospheric pressure
Lim, Chang-Kee, Lord, Gwyn A.
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Inhibitory compound produced by Pseudomonas with effectiveness on Vibrio harveyi [PDF]
, 2010 Persistence of the antivibrio property of the potential antagonistic probiotics, Pseudomonas MCCB 102 and 103, at di¡erent temperatures, pH and in organic solvents was studied.
Bright Singh, I S +6 more
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