Results 31 to 40 of about 1,545,192 (292)

Fases estacionárias quirais para cromatografia líquida de alta eficiência Chiral stationary phases for high-performance liquid chromatography

open access: yesQuímica Nova, 2010
The development of Chiral Stationary Phases (CSPs) for high performance liquid chromatography has been studied by various researches around the world, especially, since 1980.
Tiago de Campos Lourenço   +2 more
doaj   +1 more source

Is Chromatographic Efficiency Possible Using Molecularly Imprinted Stationary Phases?

open access: yesSeparations, 2023
Molecularly imprinted polymers are prepared in the presence of a template. They have been shown to resolve enantiomers when used as stationary phases for liquid chromatography.
W. Rudolf Seitz
doaj   +1 more source

Determinação da espessura da camada polimérica de fases estacionárias imobilizadas para cromatografia líquida de alta eficiência por termogravimetria Determination of polymeric layer thickness on immobilized stationary phases for high-performance liquid chromatography using thermogravimetric analyses

open access: yesQuímica Nova, 2008
This paper presents a simple and practical thermogravimetric method for determining the layer thickness of immobilized polymer stationary phases used in reversed-phase high-performance liquid chromatography.
Anizio M. Faria   +3 more
doaj   +1 more source

Monolithic enantiomer-selective stationary phases for capillary electrochromatography

open access: yes, 2006
Monolithic materials have become a well-established format for stationary phases in the field of capillary electrochromatography. Four types of monoliths, namely particle-fixed, silica-based, polymer-based, and molecularly imprinted monoliths, have been ...
Xie, Chuanhui   +6 more
core   +1 more source

Development and Application of Hydrophilic Interaction Liquid Chromatographic Stationary Phases

open access: yes, 2014
As an alternative high performance liquid chromatography technology, hydrophilic interaction liquid chromatography (HILIC) plays an important role in the separation of highly polar and ionic compounds such as amino acids, carbohydrates, peptides and so ...
Shen Aijin   +3 more
core   +1 more source

The microbiome in human skin aging

open access: yesFEBS Letters, EarlyView.
Age‐related skin changes encompass the well‐known visible phenotypic alterations, together with microbiome dysbiosis and a series of molecular aging hallmarks. These hallmarks characterize not only a fully stablished aged phenotype but also the skin aging process itself.
Manuel Huerta Arana   +3 more
wiley   +1 more source

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

open access: yesFEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui   +4 more
wiley   +1 more source

Recent Developments of Liquid Chromatography Stationary Phases for Compound Separation: From Proteins to Small Organic Compounds

open access: yesMolecules, 2022
Compound separation plays a key role in producing and analyzing chemical compounds. Various methods are offered to obtain high-quality separation results.
Handajaya Rusli   +2 more
doaj   +1 more source

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

open access: yesFEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil   +3 more
wiley   +1 more source

DESIGNING STATIONARY PHASES FOR IMPROVED PROTEIN SEPARATIONS

open access: yes, 2022
   As monoclonal antibodies (mAbs) become a more important part of the pharmaceutical industry, the need for better quicker analysis of then will also increase.
Tyrel A Wagner (12469887)
core   +3 more sources

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