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Determination of amitriptyline, imipramine and orphenadrine in antidepressant drugs by potentiometry, spectrophotometry and atomic absorption spectrometry
(
Springer-Verlag
, 1993 , Article)
Methods are described for the determination of amitriptyline, imipramine and orphenadrine in some antidepressant drugs. They are based on a prior reaction with ammonium reineckate to form 1∶1 water-insoluble drugreineckate ...
Liquid and poly (vinyl chloride) matrix membrane electrodes for the selective determination of cocaine in illicit powders
(
Elsevier
, 1992 , Article)
The construction of liquid membrane and PVC matrix-type cocainium ion selective electrodes and their use for direct potentiometry and potentiometric titration of cocaine are described. The ion-pair complexes of cocaine ...
Determination of glafenine in dosage forms and serum by thin layer densitometry and high performance liquid chromatography
(
Elsevier
, 1997 , Article)
New thin layer densitometry and high performance liquid chromatography (HPLC) methods are described for quantitative determination of glafenine in dosage forms in the presence of its photo-degradation products and in serum ...
Plastic Membrane Electrodes for the Potentiometric Determination of Codeine in Pharmaceutical Preparations
(
Springer New York
, 1997 , Article)
Four PVC membrane electrode systems responsive to codeinium cation are described. These electrodes are based on the use of the ion-association complexes of the codeinium cation with tetraphenylborate and reineckate ...
Mercurimetric potentiometric determination of barbiturates using a solid-state iodide ion-selective electrode
(
Taylor and Francis Inc.
, 1997 , Article)
A simple potentiometric method is described for mercurimetric titration of barbiturates using a solid-state iodide ion-selective electrode. The optimum titration conditions involve the use of a borate buffer of pH 9-10 as ...
A New Poly (Vinyl Chloride) Matrix Membrane Electrode for Manual and Flow Injection Determination of Pilocarpine in Some Pharmaceutical Preparations
(
Taylor and Francis Inc.
, 1994 , Article)
A novel pilocarpinium ion selective membrane electrode is prepared, characterized and used in pharmaceutical analysis. The electrode system incorporates a PVC membrane with pilocarpine-reineckatc ion pair complex as an ...
Kinetic Determination of Morphine in Illicit Powders, Using a Fluoride Selective Electrode, Based on Reaction with 1-Fluoro-2,4-dinitrobenzene
(
Springer New York
, 1996 , Article)
A simple, accurate and selective method is described for the determination of morphine in illicit powders, based on monitoring the initial rate of fluoride ion liberation from the reaction of morphine with 1-fluoro-2,4-d ...
Constituents of plants growing in Qatar XVII anti-inflammatory and cytotoxic activities of extracts of thirty indigenous species
(
Taylor & Francis
, 1990 , Article)
Thirty plants, indigenous to Qatar, were extracted separately with hexane, chloroform and ethanol. The dried extracts were examined for potential anti-inflammatory activities both in vitro by their ability to inhibit ...
Spectroscopic studies on the uranyl-schiff base solid complex (N,N'-p-phenylenebis(salicylideneiminato)UO2)
(
Elsevier
, 1992 , Article)
The dioxouranium(VI)-Schiff base complex (N,N'-p-phenylenebis(salicylideneiminato)UO2); (UO2(sal-p-phdn)) was prepared. Its resonance Raman, infrared and electronic spectra were obtained and assigned on the basis of C2v ...
Vibrational analysis of the (VO(O2)2NH3)- ion
(
Elsevier
, 1990 , Article)
The infrared spectra of the solid complex NH4 (VO(O2)2NH3) were obtained. Due to the complicated structure of the diperoxo (VO(O2)2NH3)− ion, normal coordinate analysis was introduced in order to make quantitative assignments ...