STRUCTURE OF METHYLPHEOPHORBIDE-RCI [PDF]
he methanolic extract of the cyanobacterium (blue-green alga) Spirulina geitleri has been treated with methanolic acid to convert all chlorophyllous pigments to their methylpheophorbides.
Budzikiewicz H. +27 more
core +1 more source
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
doaj +1 more source
Enricher for Fraction of High-Pressure Liquid Chromatography [PDF]
A device is developed for concentrating a dilute solution without losing the components with boiling points slightly higher than the solvent. The device consists of an evaporator, receptor, and approximately 100 capillaries. A dilute solution is introduced into the evaporator and heated at a lower temperature than the boiling point of the solvent with ...
Masayuki Matsui +2 more
openaire +3 more sources
Analysis of total urinary catecholamines by liquid chromatography: methodology, routine experience and clinical interpretations of results [PDF]
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
Numerical Simulation of Fluid Dynamics in a Monolithic Column
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
Validation of a chromatographic method to routine analysis of trans-resveratrol and quercetin in red wines [PDF]
: 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
Glycan analysis of the chicken synaptic plasma membrane glycoproteins - a major synaptic N-glycan carries the LewisX determinant [PDF]
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
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]
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
Ultra-High-Pressure Liquid Chromatography ☆ [PDF]
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
openaire +2 more sources
Mobile Image Ratiometry: A New Method for Instantaneous Analysis of Rapid Test Strips [PDF]
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

