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Now showing items 11-20 of 172
HPTLC assay of acetylsalicylic acid and the impurity salicylic acid in pharmaceuticals
(Akademiai Kiado Rt., 1995)
Spectrophotometric investigation of complex formation of an oxime PAM-4Cl with palladium(II) and its analytical application
(Journal of Pharmaceutical and Biomedical Analysis, 1990)
The colour reaction of 4-hydroxyiminomethyl-1-methylpyridinium chloride (PAM-4Cl) and palladium(II) chloride has been investigated. The optimum reaction conditions, spectral characteristics, conditional stability constant ...
Potentiometric and volumetric determination of 6-mercaptopurine
(Springer-Verlag, 1990)
Three methods for the determination of 6-mercaptopurine in the pure state and in tablets are described. One method is based on the reaction of this compound with silver ions, whereby an equivalent amount of nitric acid is ...
Dependence of the Renal Excretion of Theophylline on its Plasma Concentrations and Urine Flow Rate in Asthmatic Children
(Journal of Pharmacy and Pharmacology, 1990)
Abstract— The dependence of the renal excretion of theophylline on its plasma concentration and urine flow rate has been investigated in asthmatic children of either sex. One group (age 12.25 ± 0.80, mean ± s.d. n = 8) was ...
Endothelium-independent contractions and relaxations of the rabbit large peripheral conduit arteries
(European Journal of Pharmacology, 1990)
Spectrophotometric investigation of metopropol-benzyl orange reaction and its application to the assay in pharmaceutical dosage forms
(Farmaco, 1995)
A sensitive spectrophotometric method for the determination of metoprolol tartrate in tablets and ampoules is presented. Using spectrophotometric measurements, it was found that metoprolol tartrate and benzyl orange form ...
Third-order derivative UV spectrophotometry and densitometry for the simultaneous assay of acetylsalicylic acid and salicylic acid in tablet formulations
(Societa Chimica Italiana, 1995)
Third-order derivative spectrophotometry is proposed for simultaneous determination of acetylsalicylic acid and free salicylic acid in sustained-release tablets, and compared with TLC-densitometry. Both methods were evaluated ...
Effect of selected direct compression excipients on the stability of acetylsalicylic acid tablets
(Editio Cantor Verlag GmbH, 1995)
The effect of some direct compression excipients (Avicel® PH 101 (I), Avicel PH 101 + mannitol (II), Avicel PH 112 (III), Cellactose® (IV), and Pharmatose® DCL 40 (V)) under different storage conditions (22, 43 and 73% ...
Spectrophotometric determination of tilidine using bromocresol green and bromophenol blue
(Acta Pharmaceutica Hungarica, 1990)
Potentiometric investigation of the stability of palladium(II) complex of pralidoxime chloride in aqueous solution
(Journal of Pharmaceutical and Biomedical Analysis, 1990)
The formation of a complex between palladium(II) chloride and pralidoxime chloride (PAM-2Cl) has been studied by means of potentiometric pH measurements. The real stability constant of the complex in aqueous medium of ionic ...