Conductometric and potentiometric determination of acetylsalicylic acid in aspirin®: A suggestion for an experimental activity for the instrumental analysis

Abstract

The present article describes the quantification of acetylsalicylic acid (ASA) in Aspirin® using simultaneous potentiometric and conductometric titrations, as a suggestion for an experimental activity, for the Instrumental Analysis in graduate chemistry and pharmacy courses. Conductometric and potentiometric titrations was applied for ASA determination in Aspirin® and these results are in good accordance with the declared value of manufacturer, at a 95% confidence level. The experimental activity it is a simple and low cost, showing it to be used in experimental activities on teaching laboratories, generating gains in student learning.