Analysis of Trimethoprim--sulfonamide drug combinations in dosage forms by UV spectroscopy and liquid chromatography (HPLC)

Autor: D, Bonazzi, V, Andrisano, A M, Di Pietra, V, Cavrini
Rok vydání: 1994
Předmět:
Zdroj: Farmaco (Societa chimica italiana : 1989). 49(6)
ISSN: 0014-827X
Popis: Derivative and difference spectrophotometric methods are described for the direct simultaneous analysis of combinations of Trimethoprim with sulfonamide drugs (sulfadiazine, sulfamethoxazole, sulfamethoxypyridazine) in commercial dosage forms. The more advantageous approach (derivative and difference mode) is suggested for each binary mixture. The assay results are compared with those obtained by a new chromatographic (HPLC) method, involving a C-18 column and a mobile phase (pH 6.5) containing 1.8 diaminooctane as amine modifier and sodium heptansulfonate as ion pairing agent.
Databáze: OpenAIRE