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antiarrhythmic/hymenoxys rusbyi
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11 resultaten
Partial synthesis of 6'-hydroxycinchonine and its antiarrhythmic activity in mice.
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The synthesis of 6'-hydroxycinchonine [8R,9S)-cinchonan-6',9-diol] was achieved by demethylating quinidine with boron tribromide in dichloromethane at -75 degrees C. The antiarrhythmic activities of 6'-hydroxycinchonine and quinidine were compared following the infusion of aconitine into the tail
Simultaneous liquid-chromatographic determination of three antiarrhythmic drugs: disopyramide, lidocaine, and quinidine.
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We report a common methodology for determining three antiarrhythmic drugs: disopyramide, lidocaine, and quinidine. Alkalinized serum and internal standard (p-chlorodisopyramide) are extracted into dichloromethane, the organic phase is evaporated, and the redissolved residue is injected onto a
Simultaneous liquid-chromatographic determination of five antiarrhythmic drugs and their major active metabolites in serum.
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We report an isocratic "high-performance" liquid chromatographic method for the simultaneous measurement of tocainide, lidocaine, procainamide, quinidine, disopyramide, and their major active metabolites in serum. The drugs are extracted from 200 microL of serum at pH 9.5 with 1.5 mL of
Determination of five antiarrhythmic drugs in human plasma by dispersive liquid-liquid microextraction and high-performance liquid chromatography.
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A fast and sensitive high-performance liquid chromatography (HPLC) method with ultraviolet (UV) detection was developed and validated for the simultaneous quantitation of five antiarrhythmic drugs (metoprolol, propranolol, carvedilol, diltiazem, and verapamil) in human plasma samples. It involves
Determination of nicainoprol, a new antiarrhythmic agent, in human plasma and urine by high-performance liquid chromatography.
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A new method for the determination of nicainoprol in human plasma and urine has been developed. Nicainoprol and p-chlorodisopyramide as the internal standard are extracted into dichloromethane under basic conditions, and then evaporated to dryness. A reconstituted aliquot is injected onto a
Determination of the class III antiarrhythmic drugs dronedarone and amiodarone, and their principal metabolites in plasma and myocardium by high-performance liquid chromatography and UV-detection.
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Dronedarone, a noniodinated benzofuran derivative of amiodarone, is believed to have a better side effect profile, and is currently undergoing phase III clinical trials. A novel method was developed for the determination of dronedarone and its principal metabolite debutyldronedarone in both plasma
Simplified, rapid and inexpensive extraction procedure for a high-performance liquid chromatographic method for determination of disopyramide and its main metabolite mono-N-dealkylated disopyramide in serum.
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A simplified, rapid and inexpensive extraction procedure for the determination of the antiarrhythmic drug disopyramide and its main metabolite mono-N-desalkylated disopyramide in serum by high-performance liquid chromatography has been developed. The analysis uses ultraviolet detection at 254 nm,
Determination of secondary amino drugs as their metal dithiocarbamate complexes by reversed-phase high-performance liquid chromatography with electrochemical detection.
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To assay various secondary amino drugs (sympatomimetic, beta-blocking, antiarrhythmic agents), they were converted to metal (copper or nickel) dithiocarbamate complexes by means of a pre-column derivatization method. The electrochemical properties of the complexes were studied. They were
Determination of tocainide in human plasma by gas chromatography with nitrogen-selective detection after Schiff base formation.
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Tocainide is a primary amine with antiarrhythmic properties derived from lidocaine. For biopharmaceutical and pharmacokinetic purposes an assay was developed that made use of Schiff base formation with methyl isobutyl ketone and gas chromatography with nitrogen-selective detection. The
Gas chromatographic-mass spectrometric determination of serum mexiletine concentration after derivatization with perfluorooctanoyl chloride, a new derivative.
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Mexiletine is an antiarrhythmic agent used in the treatment of ventricular arrhythmia. The drug has a narrow therapeutic window which necessitates monitoring its serum concentrations. We describe a gas chromatographic-mass spectrometric analysis of mexiletine using selected ion monitoring.
Gas chromatography-electron ionization and chemical ionization mass spectrometric analysis of serum mexiletine concentration after derivatization with 2,2,2-trichloroethyl chloroformate: a novel derivative.
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Mexiletine (Mexitil) is an antiarrhythmic agent used in the treatment of ventricular arrhythmia. The drug has a narrow therapeutic window, and monitoring its serum concentration is recommended. The authors describe a gas chromatography-mass spectrometric (GC/MS) assay of mexiletine using selected
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