Results 21 to 30 of about 2,711,229 (306)

Characterization of Balsamic Vinegars Using High-Performance Liquid Chromatography and Gas Chromatography

Applied Sciences, 2022
Vinegars are natural products manufactured by two-step fermentation. One of the most famous is balsamic vinegar, especially that produced in Modena, Italy. Its unique production process positively distinguishes it from other vinegars. There are basically
Michal Kašpar, Petr Česla
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EFFECTS OF TEMPERATURE AND PERCENTAGE OF ORGANIC MODIFIER ON RETENTION AND SELECTIVITY IN RP-HPLC USING SOLVATION PARAMETER MODEL [PDF]

Journal of Sciences, Islamic Republic of Iran, 2003
Effects of temperature and percentage of organic modifier were studied on retention and selectivity in RP-HPLC using solvation parameter model. The system constants were determined by multiple linear regression analysis from experimental values in the ...
M.R. Hadjmohammadi
doaj  

Preparation characterization and non-isothermal decomposition kinetics of different carbon nitride sheets

Egyptian Journal of Petroleum, 2020
Three series of graphitic carbon nitride g-C3N4 namely bulk (BCN), sulfur-doped (SCN) and thin layer (TCN) sheets are prepared using urea precursor under a microwave thermal pyrolysis. Several analytical techniques are used to characterize the obtained g-
M. Elshafie, S.A. Younis, P. Serp, E.A.M. Gad   +3 more
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Multidimensional Chromatography and Its Applications in Food Products, Biological Samples and Toxin Products: A Comprehensive Review

Separations, 2022
Food, drugs, dyes, extracts, and minerals are all made up of complex elements, and utilizing unidimensional chromatography to separate them is inefficient and insensitive.
Ruhul Amin, Faruk Alam, Biplab Kumar Dey, Jithendar Reddy Mandhadi, Talha Bin Emran, Mayeen Uddin Khandaker, Sher Zaman Safi   +6 more
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Metabolic fingerprinting, antioxidant characterization, and enzyme-inhibitory response of Monotheca buxifolia (Falc.) A. DC. extracts

BMC Complementary Medicine and Therapies, 2020
Background Ethnobotanical and plant-based products allow for the isolation of active constituents against a number of maladies. Monotheca buxifolia is used by local communities due to its digestive and laxative properties, as well as its ability to cure ...
Joham Sarfraz Ali, Hammad Saleem, Abdul Mannan, Gokhan Zengin, Mohamad Fawzi Mahomoodally, Marcello Locatelli, Syafiq Asnawi Zainal Abidin, Nafees Ahemad, Muhammad Zia   +8 more
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Advancements in the characterisation of oligonucleotides by high performance liquid chromatography‐mass spectrometry in 2021: A short review

Analytical Science Advances, 2022
The first oligonucleotide therapeutic was approved by the Food and Drug Administration in 1998, and since then, 12 nucleic acids have been commercialised as medicines.
Fabien Hannauer, Rachelle Black, Andrew D. Ray, Eugen Stulz, G. John Langley, Stephen W. Holman   +5 more
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Easy Computation of the Various Topologies and Modes of Liquid–Liquid Partition Chromatography by the Theory of Random Walks

Separations, 2021
The article revisits the discrete recurrence method to model the instruments of liquid–liquid partition chromatography as counter-current chromatography (CCC) and centrifugal partition chromatography (CPC).
Frédéric R. Dijoux, Tsvetelina Mandova
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Liquid chromatography-tandem mass spectrometry - Application in the clinical laboratory [PDF]

, 2003
This review provides a concise survey of liquid chromatography tandem mass spectrometry (LCTMS) as an emerging technology in clinical chemistry. The combination of two mass spectrometers with an interposed collision cell characterizes LCTMS as an ...
Michael Vogeser, Vogeser, Michael
core   +2 more sources

Countercurrent chromatography in analytical chemistry (IUPAC technical report) [PDF]

, 2009
© 2009 IUPACCountercurrent chromatography (CCC) is a generic term covering all forms of liquid-liquid chromatography that use a support-free liquid stationary phase held in place by a simple centrifugal or complex centrifugal force field. Biphasic liquid
Sutherland, IA, Ian A. Sutherland, Tatyana Maryutina, Maryutina, T, Spivakov, B, Boris Spivakov, Shpigun, O, Berthod, A, Alain Berthod, Oleg Shpigun, Sutherland, Ian A., Iqbal, M. S., Torto, N., Lobinski, Ryszard, Labuda, J., Mester, Z., Motomizu, S., Trendafilova, N., Shpigun, Oleg, Smith, R. M., Knox, D. E., Lund, W., Fajgelj, A., Spivakov, Boris, Camoes, M., Maryutina, Tatyana, Berthod, Alain, Hibbert, B., Chai, Z., Apak, R., Minkkinen, P., Felinger, A., Aggarwal, S. K., Pingaron, J., Jarosz, M., Kim, H., de Zorzi, P., de Bieyre, P.   +37 more
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Purification of gangliosides by liquid-liquid partition chromatography

Journal of Lipid Research, 2008
A liquid-liquid partition chromatographic technique was applied to separate amphiphilic glycolipids. A two-phase solvent system composed of n-butanol-t-butyl methyl ether-acetonitrile-water at a volume ratio of 3:1:1:5 was found to be suitable for ...
Tomohisa Kato, Kenichi Hatanaka
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