Indonesia Journal of Pharmacy Vol 28 no 4 October-Desember 2017

Title	Indonesia Journal of Pharmacy Vol 28 no 4 October-Desember 2017
Edition	Vol 28 no 4 October-Desember 2017
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ISBN/ISSN
Author(s)	Indonesia J.Pharm - Personal Name
Subject(s)	farmasi
Classification
Series Title
GMD	Karya Tulis Ilmiah
Language	Indonesia
Publisher	Universitas Gadjah Mada
Publishing Year	2017
Publishing Place	Jogjakarta
Collation
Abstract/Notes	ABSTRACT The reference method for simultaneous analysis of drugs is chromatography, however, this technique is expensive, complex, and needs excessive sample preparation; therefore, some simple methods like UV spectroscopy is proposed. Assisted with multivariate calibration, it is possible to analyze drugs using UV spectroscopy without prior separation. This study is intended to use UV spectroscopy coupled with multivariate calibration of partial least square (PLS) for simultaneous analysis of paracetamol (PCT), propyphenazone (PROPI), and caffeine (CAFF) in tablet dosage form. The calibration model was prepared by developing a series 20 mixture of PCT, PROPI and CAFF with certain composition randomly and its absorbance was measured at wavelength of 220-313nm with an interval of 3nm. The performance of calibration model was assessed by coefficient of determination (R2 ), root mean square error of calibration (RMSEC) and root mean square error of cross validation (RMSECV). The R2 values for the correlation between actual values of PCT, PROPI and CAFF and predicted values using UV-spectroscopy combined with PLS were 0.9994; 0.9878; and 0.9919, respectively. The calibration errors expressed with RMSEC were 0.027%, 0.082% and 0.043% for PCT, PROPI and CAFF, respectively. While, during cross validation using “leave one out” technique, RMSECV values obtained were 0.062%, 0.095% and 0.982%, respectively for PCT, PROPI and CAFF. The level of drugs obtained were 226.76±14.49 mg/tablet (equivalent to 90.70% from labeled claim) for PCT, 135.74±11.23 mg/tablet (equivalent to 90.49% from labeled claim) for PROPI and 51.69±2.35 mg/tablet (equivalent to 103.38% from labeled claim) for CAFF. Keywords: UV-spectrophotometry, multivariate calibration, partial least square, paracetamol, caffeine, and Propyphenazone.
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