Multispectral UV imaging for surface analysis of MUPS tablets with special focus on the pellet distribution

Anna Novikova, Jens Michael Carstensen, Thomas Rades, Prof Dr Claudia S Leopold

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

In the present study the applicability of multispectral UV imaging in combination with multivariate image analysis for surface evaluation of MUPS tablets was investigated with respect to the differentiation of the API pellets from the excipients matrix, estimation of the drug content as well as pellet distribution, and influence of the coating material and tablet thickness on the predictive model. Different formulations consisting of coated drug pellets with two coating polymers (Aquacoat(®) ECD and Eudragit(®) NE 30 D) at three coating levels each were compressed to MUPS tablets with various amounts of coated pellets and different tablet thicknesses. The coated drug pellets were clearly distinguishable from the excipients matrix using a partial least squares approach regardless of the coating layer thickness and coating material used. Furthermore, the number of the detected drug pellets on the tablet surface allowed an estimation of the true drug content in the respective MUPS tablet. In addition, the pellet distribution in the MUPS formulations could be estimated by UV image analysis of the tablet surface. In conclusion, this study revealed that UV imaging in combination with multivariate image analysis is a promising approach for the automatic quality control of MUPS tablets during the manufacturing process.
Original languageEnglish
JournalInternational Journal of Pharmaceutics
Volume515
Issue number1-2
Pages (from-to)374-383
ISSN0378-5173
DOIs
Publication statusPublished - 2016

Keywords

  • Multispectral UV imaging
  • MUPS tablets
  • Multivariate image analysis
  • PLS
  • Pellet distribution
  • Content uniformity

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