Results 21 to 30 of about 18,538,505 (298)

Pitfall in the high-throughput quantification of whole blood cyclosporin A using liquid chromatography-tandem mass spectrometry [PDF]

open access: yes, 2005
In a growing number of laboratories the technique of liquid chromatography-tandem mass spectrometry is used for the quantification of cyclosporin A in whole blood, employing cyclosporin D as the internal standard. Cyclosporin A is extensively metabolized
Michael Vogeser   +3 more
core   +2 more sources

Quantitative estimation of urinary ortho-cresol by high pressure liquid chromatography for biomonitoring of toluene exposed population

open access: yesEnvironmental Disease, 2020
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]

open access: yesJournal of Chromatographic Science, 2005
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 ...
Tadao, Ogawa   +2 more
openaire   +2 more sources

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

Temperature-Controlled Microchip Liquid Chromatography System [PDF]

open access: yes, 2006
High-performance liquid chromatography (HPLC) is one of the most important analytical tools heavily used in the fields of chemistry, biotechnology, pharmaceutics, and the food industry.
Shih, Victor-Chi-Yuan
core   +1 more source

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

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

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

Effects of ropivacaine combined with morphine at 0.15 and 0.2 mg kg-1 in bitches undergoing epidural anesthesia [PDF]

open access: yesActa Cirúrgica Brasileira, 2015
PURPOSE: To investigate cardiorespiratory effects and serum concentration of ropivacaine combined with morphine at different doses.METHODS: Sixteen healthy adult female dogs weighting 9.8±4.1 kg were included in the study.
Verônica Batista de Albuquerque   +6 more
doaj   +2 more sources

Development of an LC-MS/MS method for the analysis of triacylglycerols from meat and application in the discrimination of cooked meat products [PDF]

open access: yes, 2010
A single stage reversed phase high performance liquid chromatography (RP HPLC) separation of animal fat triacylglycerols (TAGs) has been developed for coupling with atmospheric pressure chemical ionization tandem mass spectrometry using an ion trap mass ...
Hasan, Haslina
core   +3 more sources

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