Potassium Assay in OTC Drug Products by Ion Chromatography

This poster presented jointly with USP at AAPS meeting shows, that we successfully developed and validated a single IC procedure for potassium assay and identification in potassium bicarbonate and potassium chloride for effervescent oral suspension. The optimized chromatographic conditions could be used for other cationic impurities, such as magnesium, calcium, sodium, and ammonium in potassium bicarbonate and potassium chloride for effervescent oral suspension. Single chromatographic method for assay and identification simplifies the overall QA/QC workflow.

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