Papaverine hydrochloride is an antispasmodic active pharmaceutical ingredient used to relieve smooth muscle spasms and improve blood flow. Accurate assay of the API is essential during pharmaceutical manufacturing to ensure product potency, consistency, and compliance with pharmacopoeia specifications.
This application demonstrates an automated non-aqueous potentiometric titration using perchloric acid, providing objective endpoint detection with excellent precision and repeatability for routine quality control laboratories.
Recommended Hiranuma System
- COM-A19 Automatic Potentiometric Titrator
- Glass electrode suitable for non-aqueous titration
- Automatic burette
- Optional C-1724 Autosampler for higher-throughput laboratories
- COM-28S Automatic Potentiometric Titrator
Technical Summary
Papaverine hydrochloride is assayed by non-aqueous potentiometric titration using standardized perchloric acid in glacial acetic acid. Automated endpoint detection provides accurate, reproducible results without the need for visual indicators, making the method well suited for routine pharmaceutical quality control and pharmacopoeial assay procedures.














