Publications by authors named "Carolyn J Swann"

Article Synopsis
  • - USP's peptide reference standards are usually assessed using HPLC assays against a purity standard determined by a mass balance method.
  • - A collaborative study by the USP Biologics Department compared three quantitation methods (HPLC, qNMR, and AAA) for measuring oxytocin levels to evaluate inter-laboratory consistency.
  • - Results showed HPLC had the least variability, but qNMR, being simpler and quicker, is suggested for more in-depth exploration as a primary method for peptide standard value assignment.
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Polysaccharide (PS) based meningococcal vaccines are primarily evaluated by physicochemical methods to ensure batches are consistently manufactured. As PS content is determined by different methods across numerous laboratories, there is a need for International Standards (IS) to calibrate the assays. Following the successful introduction of the WHO Meningococcal group C (MenC) IS in 2011, NIBSC initiated projects to prepare similar standards for groups A, W, Y and X (MenA/W/Y/X) to standardise all meningococcal- PS based vaccines.

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