Results 51 to 60 of about 17,554,840 (188)

Determination of itraconazole and hydroxyitraconazole in plasma by use of liquid chromatography-tandem mass spectrometry with on-line solid-phase extraction [PDF]

, 2003
In this paper a method for the simultaneous quantification of the anti-fungal drug itraconazole and its co-active metabolite hydroxyitraconazole in plasma employing liquid chromatography tandem-mass spectrometry and automated solid-phase extraction is ...
Spöhrer, Ute, Schiel, Xaver, Vogeser, Michael   +2 more
core   +1 more source

Possibilidades e limitações no uso da temperatura em cromatografia líquida de fase reversa Possibilities and limitations of using temperature in reversed phase liquid chromatography

Química Nova, 2010
High-temperature liquid chromatography (HTLC) is a technique that presents a series of advantages in liquid phase separations, such as: reduced analysis time, reduced pressure drop, reduced asymmetry factors, modified retentions, controlled selectivities,
Endler Marcel Borges, Carla B. G. Bottoli, Carol.H. Collins   +2 more
doaj   +1 more source

Plasma L-ergothioneine measurement by high-performance liquid chromatography and capillary electrophoresis after a pre-column derivatization with 5-iodoacetamidofluorescein (5-IAF) and fluorescence detection [PDF]

, 2013
Two sensitive and reproducible capillary electrophoresis and high-performance liquid chromatography-fluorescence procedures were established for quantitative determination of L-egothioneine in plasma.
Pintus, Gianfranco, Angelo Zinellu, Erre, Gian Luca, Carru, Ciriaco, Salvatore Sotgia, Ciriaco Carru, Sotgia, Salvatore, Erre GL, Gianfranco Pintus, Zinellu, Angelo, Deiana, Luca, Gerard Aime Pinna, Luca Deiana, Pisanu, Elisabetta, Elisabetta Pisanu, Gian Luca Erre, Pinna, Gérard Aimé, Sotgia S   +17 more
core   +1 more source

Clinical application of blood concentration monitoring of active metabolite of oxcarbazepine in childhood focal epilepsy

Chinese Journal of Contemporary Neurology and Neurosurgery, 2018
Objective To investigate the value of blood concentration monitoring of 10-monohydroxy carbamazepine (MHD), the active metabolite of oxcarbazepine (OXC), in the treatment ofchildhood focal epilepsy.
Pei-yuan ZHANG, Hui-fen2 LI, Xiao-jun LIU, Xiao-li YU, Yu-qin ZHANG   +4 more
doaj   +1 more source

High-Pressure Liquid Chromatography of Caffeine in Coffee

Journal of AOAC INTERNATIONAL, 1976
Abstract A new method is described for the determination of caffeine in coffee, based on high-pressure liquid chromatography. The caffeine is extracted from the sample with water and/or methylene chloride, and then separated from interfering materials by passing an aliquot of the extract through a high-pressure column containing ...
B L, Madison, W J, Kozarek, C P, Damo
openaire   +2 more sources

Determination of captopril by hplctandem mass spectrometry: application in a bioequivalence study [PDF]

Revista Brasileira em Promoção da Saúde, 2012
Objective: To assess three different captopril tablet formulations of 25mg for their bioavailability (Capoten® as the reference formulation and Captopril from FURP and Farmanguinhos as the test formulations) in 24 healthy volunteers of both sexes ...
Aline Kércia Alves Soares, Manoel Odorico de Moraes, Fernando Antônio Frota Bezerra, Gilberto de Nucci, Maria Elisabete Amaral de Moraes   +4 more
doaj  

High Pressure Liquid Chromatography of Zearalenone in Cereals

Journal of AOAC INTERNATIONAL, 1978
Abstract A high pressure liquid chromatographic method has been developed for determining zearalenone in cereals. The sample is extracted with phosphoric acid and chloroform. The extract is cleaned up by washing on a silica gel column with benzene-hexane or cyclohexaneethylene dichloride-ethyl ether and eluting with chloroform, and ...
T E, Möller, E, Josefsson
openaire   +2 more sources

Chemical and toxicological analysis of zolpidem

RUDN Journal of Medicine, 2009
Methods for measuring zolpidem are suggested: thin-layer chromatography, high-pressure liquid chromatography, ultrtaviolet spectrophotometry, gas chromatography with mass selective detector can be used for identification zolpidem in chemical ...
Y A Khomov, E I Egorova, N V Koksharova, E A Shilova   +3 more
doaj  

Characterization and toxicity evaluation of degradation products of febantel

Future Journal of Pharmaceutical Sciences, 2020
Background The aim of the present work was to determine potential toxicity of degradation products of febantel generated under different stress conditions mentioned in guideline Q1A (R2) laid down by International Council for Harmonization (ICH).
Anand A. Mahajan, Amey M. Marathe, Suvarna S. Jarande, Raghuvir Pissurlenkar, Vandana T. Gawande   +4 more
doaj   +1 more source

Resolution of desmosterol, cholesterol, and other sterol intermediates by reverse-phase high-pressure liquid chromatography.

Journal of Lipid Research, 1978
A highly efficient technique has been developed for the resolution of several sterols that are intermediates in the biosynthesis of cholesterol and that differ only by one carbon-carbon double bond or by one methyl group. The technique described utilizes
E Hansbury, T J Scallen
doaj   +1 more source