IDENTIFIKASI PARASETAMOL MENGGUNAKAN SPEKTROFOTOMETER UV-VISIBLE DAN FTIR

Abstract

Paracetamol is a widely used analgesic and antipyretic drug, so an appropriate identification method is needed to ensure the characteristics of the compound. A frequently encountered problem is the need for an analytical method capable of qualitatively identifying paracetamol with clear and comparable results between pure paracetamol and commercial paracetamol. This study aims to identify paracetamol using a UV-Visible and Fourier Transform Infrared (FTIR) spectrophotometer. The methods used include UV-Visible absorption spectrum analysis to observe the characteristic absorption peaks of paracetamol and FTIR analysis in the wavenumber range of 4000–500 cm⁻¹ to identify the main functional groups. The samples analyzed consisted of pure paracetamol and commercial paracetamol. The analysis results showed that the UV-Visible spectrum exhibited absorption peaks typical of paracetamol, while the FTIR spectrum displayed absorption bands corresponding to the compound's functional groups. The similarity of the spectral patterns obtained by both methods indicates that paracetamol could be qualitatively identified. Based on the results of this study, it can be concluded that UV-Visible and FTIR spectrophotometers are effective methods for qualitative identification of paracetamol.