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Furo- and pyranocoumarins from plant species Angelica silvestris and Peucedanum austriacum
(Journal of the Serbian Chemical Society, 1993)
An investigation of the coumarin content of plant species Angelica silvestris (roots and fruits) and Peucedanum austriacum (Jacq.) Koch (roots), both belonging to the family Apiaceae is reported. A. silvestris contained ...
Densitometric determination of urinary 4-hydroxy-3-methoxymandelic acid (vanillylmandelic acid)
(Clinical Chemistry, 1993)
We propose a simple and precise densitometric method for measuring vanillylmandelic acid (VMA). The method comprises direct urine application, thin-layer chromatographic (TLC) separation, postchromatographic derivatization, ...
Spectrophotometric determination of bifonazole in pharmaceutical formulations using bromphenol blue
(Farmaco, 1993)
A sensitive spectrophotometric method for the determination of bifonazole is described. Bifonazole was treated with bromphenol blue (BPB) in the presence of citrate buffer (pH 2.5; μ = 0.23). The formed ion-pair complex ...
Pharmacokinetic interaction between valproic acid and phenobarbital
(Biopharmaceutics & Drug Disposition, 1993)
Coulometric determination of some antiasthmatics
(Journal of Pharmaceutical and Biomedical Analysis, 1993)
A simple and rapid method for the assay of microquantities of fenoterol hydrobromide, orciprenaline sulphate and terbutaline sulphate in pure state and various pharmaceutical formulations, is presented. The method is based ...
Spectrophotometric determination of molsidomine in pharmaceutical formulations using bromocresol green
(Journal of Pharmaceutical and Biomedical Analysis, 1993)
Coulometric determination of some antiinflammatory compounds
(Farmaco, 1993)
A method is presented for the chlorocoulometric assay of small amounts of piroxicam and tenoxicam. This assay is carried out directly by coulometrically titrating the investigated substances with electrogenerated chlorine ...