Results 21 to 30 of about 462,107 (360)

Analysis of total urinary catecholamines by liquid chromatography: methodology, routine experience and clinical interpretations of results [PDF]

open access: yes, 1983
A simple routine method is described for simultaneous assay of total urinary adrenaline, noradrenaline and dopamine. The catecholamines are pre-purified on a small ion-exchange column, separated by reversed phase ion-pair liquid chromatography, and are ...
Kees, Frieder K.   +2 more
core   +1 more source

Validation of a chromatographic method to routine analysis of trans-resveratrol and quercetin in red wines [PDF]

open access: yesPesquisa 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
doaj   +1 more source

Mobile Image Ratiometry: A New Method for Instantaneous Analysis of Rapid Test Strips [PDF]

open access: yes, 2012
Here we describe Mobile Image Ratiometry (MIR), a new method for the automated quantification of standardized rapid immunoassay strips using consumer-based mobile smartphone and tablet cameras.
Bryan Callahan   +3 more
core   +2 more sources

Analysis of ochratoxin A in pig tissues using high pressure liquid chromatography (HPLC) and liquid chromatography tandem mass spectrometry (LC/MS/MS) as confirmative methods [PDF]

open access: yesZbornik Matice Srpske za Prirodne Nauke, 2009
Two different analytical methods for the determination and confirmation of ochratoxin A (OTA) in blood serum, kidney and liver of pigs have been compared. Sample clean-up was based on liquid-liquid phase extraction.
Milićević Dragan R.   +4 more
doaj   +1 more source

Glycan analysis of the chicken synaptic plasma membrane glycoproteins - a major synaptic N-glycan carries the LewisX determinant [PDF]

open access: yes, 2005
The majority of plasma membrane components are glycosylated. It is now widely accepted that this post-translational modification is crucial during the establishment, maintenance and function of the nervous system.
Koles, Kate   +3 more
core   +4 more sources

Numerical Simulation of Fluid Dynamics in a Monolithic Column

open access: yesSeparations, 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
doaj   +1 more source

Quantification of sirolimus by liquid chromatography-tandem mass spectrometry using on-line solid-phase extraction [PDF]

open access: yes, 2002
Quantification of the new immunosuppressant sirolimus (syn. rapamycin; Rapamune((R))) in whole blood by chromatography is essential for its clinical use since no immunoassay is available although monitoring is mandatory.
Fleischer, Claudia   +5 more
core   +1 more source

The separation of sterol intermediates in cholesterol biosynthesis by high pressure liquid chromatography

open access: yesJournal of Lipid Research, 1980
A three-step procedure has been developed for the separation of complex mixtures of sterol intermediates in cholesterol biosynthesis. The method has been applied to the separation of sterol intermediates formed from [14C]mevalonate by normal rat ...
E Hansbury, T J Scallen
doaj   +1 more source

Review of High-Speed Countercurrent Chromatography in Separation of Lanthanides and Actinides

open access: yesHe huaxue yu fangshe huaxue, 2022
In the field of radiochemistry, separation of lanthanides and actinides has always been one of the research hotspots. In order to achieve the burnup analysis, the lanthanide and actinide elements in the solution need to be separated.
LI Yu-hao   +6 more
doaj   +1 more source

Design, fabrication and characterization of monolithic embedded parylene microchannels in silicon substrate [PDF]

open access: yes, 2006
This paper presents a novel channel fabrication technology of bulk-micromachined monolithic embedded polymer channels in silicon substrate. The fabrication process favorably obviates the need for sacrifical materials in surface-micromachined channels and
Chen, Po-Jui   +2 more
core   +2 more sources

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