AI Article Synopsis

  • The study measures the Hammett acidity function to evaluate the acidity of excipients used in pharmaceutical solid dosage forms.
  • It highlights that measurement conditions can affect the results, but consistent outcomes can be achieved with careful control.
  • By following this method, variations between laboratories can be minimized, allowing for the detection of subtle acidity changes in excipients due to physical property differences or processing methods.

Article Abstract

In this work the Hammett acidity function has been measured to assess the relative acidity of excipients used in the preparation of pharmaceutical solid dosage forms. A systematic series of experiments is reported which illustrates how the selection of the measurement conditions can influence the results of such determinations. Although the technique is somewhat empirical and relies on several key assumptions it is shown that very consistent results can be achieved by carefully controlling the measurement conditions. It is also shown that by taking this approach laboratory-to-laboratory variation can be reduced to a negligible level and the influences of subtle changes in the acidity of pharmaceutical excipients due to intrinsic variations in their physical properties or due to different processing histories can be detected and quantified.

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Source
http://dx.doi.org/10.1016/j.ejpb.2005.04.008DOI Listing

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