Quantification of Naproxen in Pharmaceutical Formulation using Near-Infrared Spectrometry

근적외 분광분석법을 이용한 나프록센 정제의 정량분석

  • Kim Do Hyung (College of Pharmacy, Dongduk Women's University) ;
  • Woo Young Ah (College of Pharmacy, Dongduk Women's University) ;
  • Kim Hyo Jin (College of Pharmacy, Dongduk Women's University)
  • 김도형 (동덕여자대학교 약학대학) ;
  • 우영아 (동덕여자대학교 약학대학) ;
  • 김효진 (동덕여자대학교 약학대학)
  • Published : 2005.02.01

Abstract

Near-infrared (NIR) spectroscopy has been widely applied in various field, since it is nondestructive and no sample preparation is required. In this paper, NIR spectroscopy was used for the determination of naproxen in a commercial pharmaceutical preparation. NIR spectroscopy was used to determine the content of naproxen in intact naproxen tablets containing 250 mg ($65.8\%$ nominal concentration) by collecting NIR spectra in the range of $1100{\sim}1750nm$. The laboratory-made samples had $46.1{\sim}85.5\%$ nominal naproxen concentration. The measurements were made by reflection using a fiber-optic probe and calibration was carried out by partial least square regression (PLSR). Model validation was performed by randomly splitting the data set into calibration and validation data set (63 samples as a calibration data set and 42 samples as a validation data set). The developed NIR calibration gave results comparable to the known values of tablets in a laboratorial manufacturing process with standard error of calibration (SEC) and standard error of prediction (SEP) of $1.06\%\;and\;1.04\%$, respectively. The NIR method showed good accuracy and repeatability. NIR spectroscopic determination in intact tablets allowed the potential use of real time monitoring for a running production process.

Keywords

References

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