Applied Magnetic Resonance

, Volume 44, Issue 6, pp 735–743 | Cite as

The Influence of Pressure in Paracetamol Tablet Compaction on 14N Nuclear Quadrupole Resonance Signal

  • J. Lužnik
  • J. Pirnat
  • V. Jazbinšek
  • Z. Lavrič
  • S. Srčič
  • Z. Trontelj


14N nuclear quadrupole resonance (14N NQR) of several commercially available paracetamol tablets was measured. The spectra of two polymorphs are presented. The linewidths of the correspondent 14N NQR lines in all the measured samples containing the room-temperature stable monoclinic polymorph were noticeably different. We proved experimentally that the linewidth differences are the consequence of different compacting pressure in the production of tablets.


Active Pharmaceutical Ingredient Nuclear Quadrupole Resonance Compaction Pressure Active Pharmaceutical Ingredient Nuclear Quadrupole Resonance Frequency 
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This research was supported by the Slovenian Research Agency (Program P2-0348) and by the EU-FP7 Project CONPHIRMER.


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Copyright information

© Springer-Verlag Wien 2013

Authors and Affiliations

  • J. Lužnik
    • 1
  • J. Pirnat
    • 1
  • V. Jazbinšek
    • 1
  • Z. Lavrič
    • 2
  • S. Srčič
    • 2
  • Z. Trontelj
    • 1
  1. 1.Institute of Mathematics, Physics and MechanicsLjubljanaSlovenia
  2. 2.Faculty of PharmacyUniversity of LjubljanaLjubljanaSlovenia

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