Search Results - "Vessman, J"

Direct high-performance liquid chromatographic separations of metoprolol analogues on a Chiralcel OD column using chemometrics by Svensson, S, Vessman, J, Karlsson, A

“…The chromatographic behaviour of sixteen racemic amino alcohols was studied under normal-phase liquid chromatography conditions using Chiralcel OD as the…”
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Chiral separations of metoprolol and some analogs with carbon dioxide on Chiralcel OD and Chiralpak AD stationary phases. Use of chemometrics by SVENSSON, S, KARLSSON, A, GYLLENHAAL, O, VESSMAN, J

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Vancomycin-based chiral stationary phases for micro-column liquid chromatography by Svensson, Lars A., Dönnecke, Jürgen, Karlsson, Karl-Erik, Karlsson, Anders, Vessman, Jörgen

“…Vancomycin selectively immobilized to silica via either one of its two amino groups has been investigated and compared with columns made from native…”
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Pharmacokinetics and bioavailability of tranexamic acid by Pilbrant, A, Schannong, M, Vessman, J

“…Tranexamic acid 1 g was given intravenously to three healthy volunteers. Plasma concentrations decayed in three monoexponential phases. Most elimination took…”
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Evaluation of a vancomycin chiral stationary phase in packed capillary supercritical fluid chromatography by Dönnecke, Jürgen, Svensson, Lars A., Gyllenhaal, Olle, Karlsson, Karl-Erik, Karlsson, Anders, Vessman, Jörgen

“…Vancomycin immobilized on an aldehyde functionalized silica support in packed capillary columns has been used as a chiral stationary phase in supercritical…”
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Evaluation of some critical factors affecting determination of aluminum in blood, plasma, or serum by electrothermal atomic absorption spectroscopy by Frech, W, Cedergren, A, Cederberg, C, Vessman, J

“…A digestion procedure involving nitric acid is described for determination of aluminum in blood, serum, and plasma by graphite-furnace atomic absorption…”
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Selectivity in analytical chemistry (IUPAC Recommendations 2001) by Vessman, Jörgen, Stefan, Raluca I., van Staden, Jacobus F., Danzer, Klaus, Lindner, Wolfgang, Burns, Duncan Thorburn, Fajgelj, Aleš, Müller, Helmut

“…The correct use of the term "selectivity" and its clear distinction from the term "specificity" are discussed. A definition of selectivity is given, and it is…”
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Selectivity or specificity? Validation of analytical methods from the perspective of an analytical chemist in the pharmaceutical industry by Vessman, Jörgen

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Studies on the determination of nanogram amounts of gem-diphenyl-substituted drugs as benzophenones by Vessman, J

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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…”
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Selectivity - the hallmark of an analytical chemist: the current situation in the analytical sciences by Vessman, Jörgen

“…In the scientific analytical chemical literature there is a problem in that there is a mix up of the two terms ”selectivity” and ”specificity” as indicators of…”
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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…”
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Fate of emepronium in man in relation to its pharmacological effects by Sundwall, A, Vessman, J, Strindberg, B

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The use of selectivity in analytical chemistry – some considerations by Persson, Bengt-Arne, Vessman, Jörgen

“…Selectivity is a central term in analytical chemistry that describes whether the analyte can be measured without interferences. It is, however, often mixed up…”
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Preparative resolution of drug racemates to study the chiroptical properties of their enantiomers by Thunberg, Linda, Andersson, Shalini, Allenmark, Stig, Vessman, Jörgen

“…The present work is focused on the resolution of ten racemates, in order to study their chiroptical properties and to test the validity of the requirement…”
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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…”
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Electron capture gas chromatography of tertiary amines after a demethylation reaction to secondary amines. II. Studies of different chloroformates and alternative hydrolysis procedures by Hartvig, P, Vessman, J

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Gas chromatography and electron capture detection of benzophenones. 8. Study of the sensitivity in pulsed and D.C. mode 63 Ni high temperature detectors by Vessman, J, Hartvig, P

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Studies on the contamination of blood and plasma proteins by phthalate esters by Vessman, J, Rietz, G

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Gas chromatography and electron capture detection of benzophenones. 6. Effects of structure and temperature on the sensitivity by Vessman, J, Hartvig, P

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