Spectrophotometric determination of metronidazole and tinidazole in pharmaceutical preparations

Voltammetric Determination of Tinidazole Using a Glassy Carbon Electrode Modified with Single-Wall Carbon Nanotubes

“…Thus, the determination of tinidazole is of great importance and various methods have been developed. Spectrophotometric [6][7][8] and chromatographic methods 9,10 were commonly used to detect tinidazole.…”

Determinação espectrofotométrica do bromidrato de fenoterol em preparações farmacêuticas

“…Este agente cromogênico reage com compostos fenólicos (Geeta, Baggi, 1988), aminas aromá-ticas e alifáticas (El-Emam et al, 2003), aldeídos (Rao et al, 1988), e outros, na presença de um reagente oxidante como o cloreto férrico, sulfato ou nitrato cérico em meio adequado (ácido, básico ou neutro). O produto colorido obtido do acoplamento oxidativo pode ser medido espectrofotometricamente, o que constitui a base da determinação quantitativa de diversos fármacos (Rahman, Khan, Azmi, 2004;El-Emam et al, 2003;Sultan, 2002;Prasad et al, 2002;Nagaraja et al, 2002).…”

Spectrophotometric Determination of Ornidazole, Secnidazole and Tinidazole in Pharmaceutical Preparations Based on Formation of Dyes

“…Due to its antimicrobial activity it inhibits the growth of both anaerobic bacteria and certain anaerobic protozoa such as trichomonas, vaginalis, entamoeba histolytica and giardina iamboa (1) . Various methods were used in the determination of ornidazole (I) including high performance liquid chromatography (2,3) , high performance thin layer chromatography (4,5) , electrophoresis (6) and spectrophotometery (7) , for secnidazole (II) high performance liquid chromatography (8,9) , electrochemical method (10) and spectrophotometery (11) and for tinidazole (III) high performance liquid chromatography (12) , electrochemical method (13) , spectrophotometery (14) and electrophoresis (6) .…”