This document summarizes an experiment using fluorescence spectroscopy to determine the amount of aspirin in pharmaceutical tablets. Standard solutions of salicylic acid were used to generate a calibration curve with an R2 value of 0.9941, indicating the data was linear. The calibration curve was then used to determine the concentration of acetylsalicylic acid extracted from aspirin tablets, which ranged from 2.739 to 4.363 ppm. The average mass of aspirin measured was within 2.46% of the listed amount, supporting the suitability of this technique for quantitative analysis of acetylsalicylic acid in tablets.