Results 11 to 20 of about 208,562 (165)
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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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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Lipophilicity determination of β-hydroxy-β-arilalkanoic acids by reversed phase liquid chromatography under high pressure [PDF]
Arhiv za farmaciju, 2018 Lipophilicity parameters (logP) were determined for thirteen synthesized β-hydroxy-β-arilalkanoic acids using reversed phase high performance liquid chromatography.
Savić Jelena +4 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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Environmental Disease, 2020 Aim: Quantification of urinary ortho-cresol (OC) by high pressure liquid chromatography coupled with photodiode array detector. Materials and Methods: Includes acid hydrolysis of urine, liquid–liquid extraction, and chromatography quantification of ...
Anupa Yadav +2 more
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Numerical Simulation of Fluid Dynamics in a Monolithic Column
Separations, 2017 As for the measurement of polycyclic aromatic hydrocarbons (PAHs), ultra-performance liquid chromatography (UPLC) is used for PAH identification and densitometry.
Kazuhiro Yamamoto, Yuuta Tajima
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Validation of a chromatographic method to routine analysis of trans-resveratrol and quercetin in red wines [PDF]
Pesquisa Agropecuária Brasileira, 2017 : The objective of this work was to validate a fast method with low-solvent use, for the analysis of trans-resveratrol and quercetin in red wines. The wines were prepared, using a classical method, from the grape (Vitis vinifera) cultivars Cabernet Franc,
Letícia Flores da Silva +4 more
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