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USP Monograph Modernization Initiative: Chemical Medicines Assay by Potentiometric Titration

28 Nov 2018

Many of the chemical medicine assay procedures are done by manual titration as per USP monographs. The manual titration procedure lacks data integrity and adds another layer of complexity. Pharmaceutical QA/QC needs an analytical technique with data integrity for FDA audits and reliable product release. As science advances, the USP reviews monographs to assess if they should be changed to reflect recent innovations and technology updates making laboratory analysis more efficient, cost-effective, and safe. Autotitration combined with suitable equivalence point detection not only improves specificity, but fulfills data integrity. As part of USP monograph modernization, a new assay method for potassium bicarbonate and potassium carbonate is developed and validated using autotitration.

OMNIS

Metrohm AG

OMNIS is the universal platform for wet chemical analysis - and beyond. It is modular by design and can be scaled to control potentiometric titrations, volumetric and coulometric Karl Fischer titrations, thermometric titrations, pH and conductivity measurements and – with the OMNIS NIR analyzer – also measurements by near-infrared spectroscopy.

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TitrationTitration is an analytical technique for determining substance concentration in a solution. For titration consider a manual or automated system, volumetric or coulometric reagent addition and indication by a potentiometer, spectrometer, turbidometer or by the Karl Fischer method. Other features of titration to consider include burettes, reagents, concentration range, reaction time and autosamplers.Assay DevelopmentThe process of proving an assay to be sensitive with respect to the target is known as assay development. The assay should be able to characterize novel compounds and measure the potency of these compounds against a validated biological target.USP Method
USP Monograph Modernization Initiative: Chemical Medicines Assay by Potentiometric Titration