Determination of caffeine in pharmaceutical preparations by the linear absorbances method

Determination of caffeine in pharmaceutical preparations by the linear absorbances method

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 val...

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Veröffentlicht in:Pharmazie 2000-05, Vol.55 (5), p.362-363
Hauptverfasser: Pascual-Martí, M C, Llobat-Estellés, M, Roig-Marco, M I
Format: Artikel
Sprache:eng
Schlagworte:
Acetaminophen - analysis
Algorithms
Aspirin - analysis
Caffeine - analysis
Calibration
Drug Combinations
Spectrophotometry, Ultraviolet
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Zusammenfassung: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.
ISSN:0031-7144