Results 31 to 40 of about 1,383,122 (318)

Chemical Characterization and Determination of the Antioxidant Properties of Phenolic Compounds in Three Scutellaria sp. Plants Grown in Colombia

open access: yesMolecules, 2023
Plants of the genus Scutellaria (Lamiaceae) have a wide variety of bioactive secondary metabolites with diverse biological properties, e.g., anti-inflammatory, antiallergenic, antioxidant, antiviral, and antitumor activities.
Silvia M. Porras   +5 more
doaj   +1 more source

Liquid chromatography-tandem mass spectrometry - Application in the clinical laboratory [PDF]

open access: yes, 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   +1 more source

Calibration of ultrafiltration membranes against size exclusion chromatography columns [PDF]

open access: yes, 2010
Using the extension of the concept of universal calibration parameter, yielding a relation between the hydrodynamic volume of molecules and the elution volume in sizeexclusionchromatography (SEC), to retention coefficients in ultrafiltration (UF), we ...
Aimar, Pierre, Meireles, Martine
core   +1 more source

Comprehensive Characterization of 76 Pharmaceuticals and Metabolites in Wastewater by LC-MS/MS

open access: yesChemosensors, 2021
Wastewaters are considered one of the main sources of pollution in the aquatic environment as release a large number of contaminants every day. Emerging contaminants such as pharmaceuticals have special interest due to the high levels of consumption by ...
Cristian Gómez-Canela   +4 more
doaj   +1 more source

Polymer separations by liquid interaction chromatography: Principles - prospects - limitations

open access: yes, 2022
S.62-79Most heterogeneities of polymers with respect to different structural features cannot be resolved by only size exclusion chromatography (SEC), the most frequently applied mode of polymer chromatography.
Radke, W.
core   +1 more source

Countercurrent chromatography in analytical chemistry (IUPAC technical report)

open access: yes, 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   +9 more
core   +1 more source

Simultaneous determination of jasmonic acid epimers as phytohormones by chiral liquid chromatography-quadrupole time-of-flight mass spectrometry and their epimerization study

open access: yes, 2012
Jasmonic acid (JA) is an essential plant hormone involved in plant development and defense system. There are four stereoisorneric forms of JA and they act quite differently in vivo.
Wu, Hongliang   +6 more
core   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Gel filtration chromatography [PDF]

open access: yes, 2011
Gel-filtration chromatography is a popular and versatile technique that permits the effective separation of proteins and other biological molecules in high yield. Here, the basis of the method is described and typical matrix types are contrasted.
Ó Fágáin, Ciarán   +3 more
core  

Acknowledgement to Reviewers of Chromatography in 2014

open access: yes, 2015
The editors of Chromatography would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2014:[...
Chromatography Editorial Office
core   +1 more source

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