Determination of caffeine in pharmaceutical preparations by the linear absorbances method
Pascual-Martí, M.C.; Llobat-Estellés, M.; Roig-Marco, M.I.
Die Pharmazie 55(5): 362-363
2000
ISSN/ISBN: 0031-7144 PMID: 11828616 Document Number: 522693
In this work a fast Linear Absorbance Method for the determination of caffeine in pharmaceutical preparations in the presence of paracetamol or acetylsalicylic acid is presented. The determination of acetylsalicylic acid or paracetamol is also possible by means of a tabulated parameter fB, which values are included in this paper. The method avoids the use of separation steps or multicalibration methods. The determination was carried out in commercial preparations with good results.