Search Results - "Gyllenhaal, Olle"

Reversal of elution order for profen acid enantiomers in normal phase LC on Chiralpak AD by Gyllenhaal, Olle, Stefansson, Morgan

“…Enantiomeric separations of four 2-substituted propionic acid drugs and two related acids have been studied using normal phase liquid chromatography with…”
Get full text

Evaluation Conditions for SFC of Metoprolol and Related Amino Alcohols on Hypercarb (Porous Graphitic Carbon) with Respect to Structure–Selectivity Relations by Gyllenhaal, Olle, Karlsson, Anders

“…Mobile phase chromatographic conditions for the selective separation of metoprolol from related amino alcohols have been evaluated using Hypercarb as support…”
Get full text

Packed column supercritical fluid chromatography of a peroxysome proliferator-activating receptor agonist drug: Achiral and chiral purity of substance, formulation assay and its enantiomeric purity by Gyllenhaal, Olle

“…This paper describes packed column supercritical fluid chromatography (SFC) for the analysis of a peroxysome proliferator-activating γ-receptor agonist that is…”
Get full text

Packed column supercritical fluid chromatography of a peroxysome proliferator-activating receptor agonist drug by Gyllenhaal, Olle

Get full text

Packed column supercritical fluid chromatography of sodium stearyl fumarate aqueous suspension by Gyllenhaal, Olle

“…A method for the determination of sodium stearyl fumarate aqueous suspension is described. This straightforward method is based on homogenisation of the…”
Get full text

Reversal of elution order for profen acid enantiomers in normal phase LC on Chiralpak AD: Enantioseparation Related to Pharmaceutical and Biomedical Analysis by GYLLENHAAL, Olle, STEFANSSON, Morgan

Get full text

Supercritical fluid chromatography of metoprolol and analogues on aminopropyl and ethylpyridine silica without any additives by Lundgren, Johanna, Salomonsson, John, Gyllenhaal, Olle, Johansson, Erik

“…Metoprolol and a number of related amino alcohols and similar analytes have been chromatographed on aminopropyl (APS) and ethylpyridine (EPS) silica columns…”
Get full text

Reversal of elution order for profen acid enantiomers in packed-column SFC on Chiralpak AD by Gyllenhaal, Olle, Stefansson, Morgan

“…Enantiomeric separations of four 2‐substituted propionic acid drugs have been studied using packed‐column supercritical fluid chromatography (SFC) with amylose…”
Get full text

Ion-pair supercritical fluid chromatography of metoprolol and related amino alcohols on diol silica by Gyllenhaal, Olle, Edström, Lena, Persson, Bengt-Arne

“…In this paper, a chromatographic system based on carbon dioxide with methanol as mobile phase, and diol silica as stationary phase has been investigated for…”
Get full text

Ion-pair supercritical fluid chromatography of metoprololand related amino alcohols on diol silica by Gyllenhaal, Olle, Edström, Lena, Persson, Bengt-Arne

“…In this paper, a chromatographic system based on carbon dioxide with methanol as mobile phase, and diol silica as stationary phase has been investigated for…”
Get full text

HPLC enantiomer separation of a chiral 1,4-dihydropyridine monocarboxylic acid by Lämmerhofer, Michael, Gyllenhaal, Olle, Lindner, Wolfgang

“…An enantioselective anion exchanger based on tert-butylcarbamoylquinine as chiral selector and thiol-modified silica as chromatographic support was applied for…”
Get full text

Reaction Monitoring of Aliphatic Amines in Supercritical Carbon Dioxide by Proton Nuclear Magnetic Resonance Spectroscopy and Implications for Supercritical Fluid Chromatography by Fischer, Holger, Gyllenhaal, Olle, Vessman, Jörgen, Albert, Klaus

“…In the recent years, it has repeatedly been stated that amines react with CO2 and can therefore not be chromatographed under supercritical conditions with CO2…”
Get full text

Determination of free fatty acids as pentafluorobenzyl esters by electron capture gas chromatography by Gyllenhaal, O, Brötell, H, Hartvig, P

“…A method for the determination of free fatty acids in minute serum samples has been developed. The acids are esterified by extractive alkylation, using…”
Get more information

Direct injection of aqueous samples in packed column supercritical fluid chromatography of isosorbide-5-mononitrate from drug release testing by Gyllenhaal, Olle, Hulthe, Johan

“…A method for the analysis of aqueous samples of isosorbide-5-mononitrate (5-ISMN) is presented. It is based on packed column supercritical fluid chromatography…”
Get full text

Potential of packed column supercritical fluid chromatography for the separation of metoprolol from closely related compounds by Gyllenhaal, Olle, Vessman, Jörgen

“…Using the present SFC method metoprolol can be separated from 12 analogues and related compounds within 12 min. It is also possible to detect most of these…”
Get full text

Packed-column supercritical fluid chromatography for the purity analysis of clevidipine, a new dihydropyridine drug by Gyllenhaal, Olle, Karlsson, Anders, Vessman, Jörgen

“…In this paper we describe a packed column supercritical fluid chromatography method that can be used for the analysis of a new dihydropyridine substance. The…”
Get full text

Packed-column supercritical fluid chromatography of a new dihydropyridine drug based on direct injection of emulsion samples by Karlsson, Lars, Gyllenhaal, Olle, Karlsson, Anders, Gottfries, Johan

“…In this paper, a method based on direct injection in packed-column supercritical fluid chromatography (SFC) for the determination of a dihydropyridine drug in…”
Get full text

Direct derivatization of alprenolol and its 4-hydroxy metabolite in urine with phosgene and methanol prior to analysis by capillary column gas chromatography by Gyllenhaal, O

“…A method for the determination of alprenolol and its 4-hydroxy metabolite has been developed. The urine sample is made alkaline with buffer (pH 12) and…”
Get more information

Determination of hydrazine in hydralazine by capillary gas chromatography with nitrogen-selective detection after benzaldehyde derivatization by Gyllenhaal, O, Grönberg, L, Vessman, J

“…A method for the determination of hydralazine substance is described. Hydrazine is derivatized in aqueous media with benzaldehyde to benzalazine. After…”
Get more information

Enantiomeric separations of amino alcohols by packed-column SFC on Hypercarb with l-(+)-tartaric acid as chiral selector by Gyllenhaal, Olle, Karlsson, Anders

“…The use of l-(+)-tartaric acid as a chiral mobile phase additive (CMPA) has been investigated in a packed-column SFC system. The CMPA, carbon dioxide, and…”
Get full text