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Baezzat MR, Jahromi FZ. Differential Pulse Voltammetric Determination of Acetaminophen Using Carbon Paste Electrode Modified with β-Cyclodextrin/Gold/Titanium Dioxide Nanocomposite. JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1134/s1061934822010026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Urwin S, Levilain G, Marziano I, Merritt JM, Houson I, Ter Horst JH. A Structured Approach To Cope with Impurities during Industrial Crystallization Development. Org Process Res Dev 2020; 24:1443-1456. [PMID: 32905065 PMCID: PMC7461122 DOI: 10.1021/acs.oprd.0c00166] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Indexed: 11/28/2022]
Abstract
The perfect separation with optimal productivity, yield, and purity is very difficult to achieve. Despite its high selectivity, in crystallization unwanted impurities routinely contaminate a crystallization product. Awareness of the mechanism by which the impurity incorporates is key to understanding how to achieve crystals of higher purity. Here, we present a general workflow which can rapidly identify the mechanism of impurity incorporation responsible for poor impurity rejection during a crystallization. A series of four general experiments using standard laboratory instrumentation is required for successful discrimination between incorporation mechanisms. The workflow is demonstrated using four examples of active pharmaceutical ingredients contaminated with structurally related organic impurities. Application of this workflow allows a targeted problem-solving approach to the management of impurities during industrial crystallization development, while also decreasing resources expended on process development.
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Affiliation(s)
- Stephanie
J. Urwin
- EPSRC
Centre for Innovative Manufacturing in Continuous Manufacturing and
Crystallisation, University of Strathclyde, Glasgow, G1 1RD, U.K.
| | | | - Ivan Marziano
- Pfizer
Worldwide Research and Development, Sandwich, CT13 9NJ, U.K.
| | - Jeremy M. Merritt
- Eli
Lilly and Company, Small Molecule
Design and Development, Lilly Technology Center North, Indianapolis, Indiana 46221, United States
| | - Ian Houson
- EPSRC
Centre for Innovative Manufacturing in Continuous Manufacturing and
Crystallisation, University of Strathclyde, Glasgow, G1 1RD, U.K.
| | - Joop H. Ter Horst
- EPSRC
Centre for Innovative Manufacturing in Continuous Manufacturing and
Crystallisation, University of Strathclyde, Glasgow, G1 1RD, U.K.
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Li F, Li R, Feng Y, Gong T, Zhang M, Wang L, Meng T, Jia H, Wang H, Zhang Y. Facile synthesis of Au-embedded porous carbon from metal-organic frameworks and for sensitive detection of acetaminophen in pharmaceutical products. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 95:78-85. [DOI: 10.1016/j.msec.2018.10.074] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2017] [Revised: 09/11/2018] [Accepted: 10/21/2018] [Indexed: 01/07/2023]
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de Oliveira GGG, Feitosa A, Loureiro K, Fernandes AR, Souto EB, Severino P. Compatibility study of paracetamol, chlorpheniramine maleate and phenylephrine hydrochloride in physical mixtures. Saudi Pharm J 2016; 25:99-103. [PMID: 28223869 PMCID: PMC5310159 DOI: 10.1016/j.jsps.2016.05.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Accepted: 05/01/2016] [Indexed: 11/28/2022] Open
Abstract
Paracetamol (PAR), phenylephrine hydrochloride (PHE) and chlorpheniramine maleate (CPM) are commonly used in clinical practice as antipyretic and analgesic drugs to ameliorate pain and fever in cold and flu conditions. The present work describes the use of thermal analysis for the characterization of the physicochemical compatibility between drugs and excipients during the development of solid dosage forms. Thermogravimetric analysis (TGA) and Differential Scanning Calorimetry (DSC) were used to study the thermal stability of the drug and of the physical mixture (drug/excipients) in solid binary mixtures (1:1). DSC thermograms demonstrated reproducible melting event of the prepared physical mixture. Starch, mannitol, lactose and magnesium stearate influence thermal parameters. Information recorded from the derivative thermogravimetric (DTG) and TGA curves demonstrated the decomposition of drugs in well-defined thermal events, translating the suitability of these techniques for the characterization of the drug/excipients interactions.
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Affiliation(s)
- G G G de Oliveira
- Department of Pharmacy, Faculty of Pharmaceutical Health, University of São Paulo, São Paulo 05508-900, Brazil
| | - A Feitosa
- Laboratory of Nanotechnology and Nanomedicine (LNMED), University of Tiradentes (UNIT), Institute of Technology and Research (ITP), Av. Murilo Dantas, 300, 49010-390 Aracaju, Brazil
| | - K Loureiro
- Laboratory of Nanotechnology and Nanomedicine (LNMED), University of Tiradentes (UNIT), Institute of Technology and Research (ITP), Av. Murilo Dantas, 300, 49010-390 Aracaju, Brazil
| | - A R Fernandes
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra (FFUC), Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - E B Souto
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra (FFUC), Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal; REQUIMTE/LAQV, Group of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal
| | - P Severino
- Laboratory of Nanotechnology and Nanomedicine (LNMED), University of Tiradentes (UNIT), Institute of Technology and Research (ITP), Av. Murilo Dantas, 300, 49010-390 Aracaju, Brazil
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