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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 ...
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 ...
Study of protolytic equilibria of flurazepam
(The Analyst, 1990)
Protolytic equilibria of flurazepam, a diprotic base which is sparingly soluble in water, were investigated. The investigations were carried out in the pH range 0-12, at constant ionic strength (0.1 M NaCl) and 25 ± 0.1 ...
Coulometric determination of levodopa, methyldopa and carbidopa
(Farmaco, 1990)
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 ...
Study of heterogeneous equilibria in saturated aqueous solutions of some 7-chloro-1,4-benzodiazepines
(The Analyst, 1990)
Acid-base equilibria in heterogeneous and homogeneous systems of some sparingly soluble benzodiazepines (diazepam, prazepam, chlordiazepoxide and medazepam) were investigated in aqueous solution and the corresponding ...
Determination of 1,3-bis(4-hydroxyiminomethylpyridinium)-propane dichloride (TMB-4) with Pd(II)
(Talanta, 1990)
The colour reaction of TMB-4 and palladium(II) chloride has been investigated. The optimum reaction conditions, spectral characteristics, stability constant and composition of the yellow water-soluble complex have been ...
A further study of the histamine-induced relaxations in the rat peripheral conduit arteries
(European Journal of Pharmacology, 1990)
Potentiometric determination of furosemide
(Acta Pharmaceutica Jugoslavica, 1990)
A simple method is presented for the potentiometric determination of small quantities of furosemide in a pure state and in pharmaceutical formulations, using 0.1 mol l-1 chloramine-T as titrant. In potentiometric titrations ...