A simple and rapid method for the assay of microquantities of fenoterol hydrobromide, orciprenaline sulphate and terbutaline sulphate in pure state and various pharmaceutical formulations, is presented. The method is based on the coulometric titration of the investigated compounds with electrogenerated chlorine in the presence of methyl orange as indicator. The method requires a simple apparatus and gives accurate and reproducible results.

Aerosols↗

PubMed1993

Coulometric determination of some antiinflammatory compounds.

A method is presented for the chlorocoulometric assay of small amounts of piroxicam and tenoxicam. This assay is carried out directly by coulometrically titrating the investigated substances with electrogenerated chloride in the presence of methyl orange as indicator. Results are accurate and reproducible. The method can be applied for routine analysis of these substances.

Anti-Inflammatory Agents, Non-Steroidal↗

PubMed1978

Polarographic determination of levomepromazine maleate on basis of maleinic acid measuring.

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Maleates↗