4 results match your criteria: "University of Antwerpen RUCA[Affiliation]"
Talanta
June 2000
Chemistry Department, University of Antwerpen (RUCA), Groenenborgerlaan 171, B2020 Antwerp, Belgium.
This paper reports on the amperometric detection of electroinactive sulfonic acids, organic acids and phosphate esters subsequent to chromatographic separation. The working electrode consisted of a 3 mm diameter glassy carbon electrode, coated with electrochemically deposited polypyrrole. The electrode was placed in a large volume wall jet cell, and a potential of +750 mV versus SCE was applied.
View Article and Find Full Text PDFCurr Med Chem
August 2002
Department of Chemistry, Faculty of Science Biomedicine, University of Antwerpen RUCA, Groenenborgerlaan 171, B-2020, Antwerpen, Belgium.
Potentiometric detection with poly(vinyl chloride) (PVC) based liquid membrane electrode coatings is presented for a series of eighteen beta-adrenoceptor binding drugs (five agonists and thirteen antagonists) in cation exchange-HPLC and RP-HPLC systems. Incorporation of lipophilic cation-exchanger tetrakis(p-chlorophenyl)borate (TCPB) alone or in combination with trioctylated alpha-cyclodextrin into the polymeric liquid membrane gives very sensitive responses for racemic forms of bufuralol, propranolol, carazolol, clenbuterol, mabuterol, cimaterol, bisoprolol, oxprenolol, alprenolol, tertatolol, and bevantolol, especially in the cation-exchange HPLC system applying acetonitrile -- 40 mM phosphoric acid (15: 85, v/v, pH* = 2.35) as the mobile phase.
View Article and Find Full Text PDFOecologia
December 1998
Evolutionary Biology Group, University of Antwerpen (RUCA), Groenenborgerlaan 171, B-2020 Antwerpen, Belgium e-mail: Fax: +32-3-2180474, , , , , , BE.
Damselfly larvae can autotomize their caudal lamellae to escape predation. Costs of caudal lamellae autotomy were investigated by directly manipulating lamellae condition of Lestes sponsa in laboratory experiments. Larvae without lamellae had higher predation mortality in the presence of Notonecta.
View Article and Find Full Text PDFEur Heart J
December 1987
Laboratory of Physiology, University of Antwerpen (RUCA), Belgium.
The diastolic depolarization rate of isolated sheep Purkinje fibres was reduced in the presence of micromolar concentrations of the 'specific bradycardic agent' falipamil (AQ-A39) and its congener UL-FS49. Both drugs reduced the amount of pacemaker current, if, activated during the diastolic depolarization phase. The if activation curve was reduced in amplitude but not shifted.
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