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Zhao Y, Bao Y, Wang J, Rohani S. In Situ Focused Beam Reflectance Measurement (FBRM), Attenuated Total Reflectance Fourier Transform Infrared (ATR-FTIR) and Raman Characterization of the Polymorphic Transformation of Carbamazepine. Pharmaceutics 2012; 4:164-78. [PMID: 24300186 PMCID: PMC3834901 DOI: 10.3390/pharmaceutics4010164] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2012] [Revised: 01/20/2012] [Accepted: 01/31/2012] [Indexed: 11/24/2022] Open
Abstract
The objective of this work was to study the polymorphic transformation of carbamazepine from Form II to Form III in 1-propanol during seeded isothermal batch crystallization. First, the pure Form II and Form III were obtained and characterized. Then their solubilities and metastable zone limits were measured by in-situ attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy and focused beam reflectance measurement (FBRM). A transition temperature at about 34.2 °C was deduced suggesting the enantiotropic nature of this compound over the studied temperature range. To quantify the polymorph ratio during the transformation process, a new in-situ quantitative method was developed to measure the fraction of Form II by Raman spectroscopy. Successful tracking of the nucleation of the stable form and the transformation from Form II to Form III during isothermal crystallization was achieved by Raman spectroscopy and FBRM. The results from these three in-situ techniques, FBRM, FTIR and Raman were consistent with each other. The results showed a strong dependency on the amount of seeds added during isothermal crystallization.
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Affiliation(s)
- Yingying Zhao
- State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, China; (Y.Z.); (Y.B.); (J.W.)
- Department of Chemical and Biochemical Engineering, the University of Western Ontario, London, ON N6A 5B9, Canada
- Engineering Research Center of Seawater Utilization Technology of Ministry of Education, Hebei University of Technology, Tianjin 300130, China
| | - Ying Bao
- State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, China; (Y.Z.); (Y.B.); (J.W.)
| | - Jingkang Wang
- State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin 300072, China; (Y.Z.); (Y.B.); (J.W.)
| | - Sohrab Rohani
- Department of Chemical and Biochemical Engineering, the University of Western Ontario, London, ON N6A 5B9, Canada
- Author to whom correspondence should be addressed; ; Tel.: +1-519-661-4116; Fax: +1-519-661-3498
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Harris RK, Ghi PY, Puschmann H, Apperley DC, Griesser UJ, Hammond RB, Ma C, Roberts KJ, Pearce GJ, Yates JR, Pickard CJ. Structural Studies of the Polymorphs of Carbamazepine, Its Dihydrate, and Two Solvates. Org Process Res Dev 2005. [DOI: 10.1021/op0500990] [Citation(s) in RCA: 106] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Robin K. Harris
- Department of Chemistry, University of Durham, South Road, Durham DH1 3LE, U.K., Institute of Pharmacy, Department of Pharmaceutical Technology, University of Innsbruck, Innrain 52, 6020 Innsbruck, Austria, Institute of Particle Science and Engineering, Department of Chemical Engineering, University of Leeds, Leeds LS2 9JT, U.K., and TCM Group, Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, U.K
| | - Phuong Y. Ghi
- Department of Chemistry, University of Durham, South Road, Durham DH1 3LE, U.K., Institute of Pharmacy, Department of Pharmaceutical Technology, University of Innsbruck, Innrain 52, 6020 Innsbruck, Austria, Institute of Particle Science and Engineering, Department of Chemical Engineering, University of Leeds, Leeds LS2 9JT, U.K., and TCM Group, Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, U.K
| | - Horst Puschmann
- Department of Chemistry, University of Durham, South Road, Durham DH1 3LE, U.K., Institute of Pharmacy, Department of Pharmaceutical Technology, University of Innsbruck, Innrain 52, 6020 Innsbruck, Austria, Institute of Particle Science and Engineering, Department of Chemical Engineering, University of Leeds, Leeds LS2 9JT, U.K., and TCM Group, Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, U.K
| | - David C. Apperley
- Department of Chemistry, University of Durham, South Road, Durham DH1 3LE, U.K., Institute of Pharmacy, Department of Pharmaceutical Technology, University of Innsbruck, Innrain 52, 6020 Innsbruck, Austria, Institute of Particle Science and Engineering, Department of Chemical Engineering, University of Leeds, Leeds LS2 9JT, U.K., and TCM Group, Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, U.K
| | - Ulrich J. Griesser
- Department of Chemistry, University of Durham, South Road, Durham DH1 3LE, U.K., Institute of Pharmacy, Department of Pharmaceutical Technology, University of Innsbruck, Innrain 52, 6020 Innsbruck, Austria, Institute of Particle Science and Engineering, Department of Chemical Engineering, University of Leeds, Leeds LS2 9JT, U.K., and TCM Group, Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, U.K
| | - Robert B. Hammond
- Department of Chemistry, University of Durham, South Road, Durham DH1 3LE, U.K., Institute of Pharmacy, Department of Pharmaceutical Technology, University of Innsbruck, Innrain 52, 6020 Innsbruck, Austria, Institute of Particle Science and Engineering, Department of Chemical Engineering, University of Leeds, Leeds LS2 9JT, U.K., and TCM Group, Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, U.K
| | - Caiyun Ma
- Department of Chemistry, University of Durham, South Road, Durham DH1 3LE, U.K., Institute of Pharmacy, Department of Pharmaceutical Technology, University of Innsbruck, Innrain 52, 6020 Innsbruck, Austria, Institute of Particle Science and Engineering, Department of Chemical Engineering, University of Leeds, Leeds LS2 9JT, U.K., and TCM Group, Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, U.K
| | - Kevin J. Roberts
- Department of Chemistry, University of Durham, South Road, Durham DH1 3LE, U.K., Institute of Pharmacy, Department of Pharmaceutical Technology, University of Innsbruck, Innrain 52, 6020 Innsbruck, Austria, Institute of Particle Science and Engineering, Department of Chemical Engineering, University of Leeds, Leeds LS2 9JT, U.K., and TCM Group, Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, U.K
| | - Greg J. Pearce
- Department of Chemistry, University of Durham, South Road, Durham DH1 3LE, U.K., Institute of Pharmacy, Department of Pharmaceutical Technology, University of Innsbruck, Innrain 52, 6020 Innsbruck, Austria, Institute of Particle Science and Engineering, Department of Chemical Engineering, University of Leeds, Leeds LS2 9JT, U.K., and TCM Group, Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, U.K
| | - Jonathan R. Yates
- Department of Chemistry, University of Durham, South Road, Durham DH1 3LE, U.K., Institute of Pharmacy, Department of Pharmaceutical Technology, University of Innsbruck, Innrain 52, 6020 Innsbruck, Austria, Institute of Particle Science and Engineering, Department of Chemical Engineering, University of Leeds, Leeds LS2 9JT, U.K., and TCM Group, Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, U.K
| | - Chris J. Pickard
- Department of Chemistry, University of Durham, South Road, Durham DH1 3LE, U.K., Institute of Pharmacy, Department of Pharmaceutical Technology, University of Innsbruck, Innrain 52, 6020 Innsbruck, Austria, Institute of Particle Science and Engineering, Department of Chemical Engineering, University of Leeds, Leeds LS2 9JT, U.K., and TCM Group, Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, U.K
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