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Vibrational spectroscopic characterisation of salmeterol xinafoate polymorphs and a preliminary investigation of their transformation using simultaneous in situ portable Raman spectroscopy and differential scanning calorimetry
Chemical and Forensic Sciences, School of Life Sciences, University of Bradford.
Chemical and Forensic Sciences, School of Life Sciences, University of Bradford.
Chemical and Forensic Sciences, School of Life Sciences, University of Bradford.
Vise andre og tillknytning
2008 (engelsk)Inngår i: Analytica Chimica Acta, ISSN 0003-2670, E-ISSN 1873-4324, Vol. 620, nr 1-2, s. 103-12Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Knowledge and control of the polymorphic phases of chemical compounds are important aspects of drug development in the pharmaceutical industry. Salmeterol xinafoate, a long acting beta-adrenergic receptor agonist, exists in two polymorphic Forms, I and II. Raman and near infrared spectra were obtained of these polymorphs at selected wavelengths in the range of 488-1064 nm; significant differences in the Raman and near-infrared spectra were apparent and key spectral marker bands have been identified for the vibrational spectroscopic characterisation of the individual polymorphs which were also characterised with X ray diffractometry. The solid-state transition of salmeterol xinafoate polymorphs was studied using simultaneous in situ portable Raman spectroscopy and differential scanning calorimetry isothermally between transitions. This method assisted in the unambiguous characterisation of the two polymorphic forms by providing a simultaneous probe of both the thermal and vibrational data. The study demonstrates the value of a rapid in situ analysis of a drug polymorph which can be of potential value for at-line in-process control

sted, utgiver, år, opplag, sider
2008. Vol. 620, nr 1-2, s. 103-12
Identifikatorer
URN: urn:nbn:se:ltu:diva-6852DOI: 10.1016/j.aca.2008.05.009Lokal ID: 527c4820-e336-11df-8b36-000ea68e967bOAI: oai:DiVA.org:ltu-6852DiVA, id: diva2:979738
Merknad
Upprättat; 2008; 20101029 (andbra)Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2017-11-24bibliografisk kontrollert

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