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Spectrophotometric determination of desoximetasone in ointment using 1,4-dihydrazinophthalazine
(Pergamon-Elsevier Science Ltd, Oxford, 1996)
The proposed method is based on coloured hydrazone formation with 1,4-dihydrazinophthalazine as a reagent. Heating at 85 degrees C for 2 h was found necessary to ensure optimal hydrazone formation in the presence of ...
Spectrophotometric determination of fluorometholone in pharmaceuticals using 1,4-dihydrazinophthalazine
(Marcel Dekker Inc, New York, 1996)
A sensitive and simple spectrophotometric method for the determination of fluorometholone in pharmaceutical formulations using 1,4-dihydrazinophthalazine (1,4-DHPHT; dihydralazine) as the reagent is presented. The yellow ...
Certain rheologycal behaviour of paracetamol solid dispersion powders
(Lubner Communication Srl, 1996)
Paracetamol powder (PAR) has poor compressibility, high cohesivity and is difficult to compress. We have prepared dispersions of PAR and 3-cyclodextrin (β-CD) in physical mixture form, kneaded solid dispersion and spray ...
Triterpenoids from Hieracium plumulosum A. Kerner, L., Asteraceae
(Pharmazie, 1996)