Application of multivariate curve resolution to in situ THz - Raman spectroscopy of amorphous solid dispersions in pharmaceutical products

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Vivattanaseth, Pattavet and Chong, Magdalene and Prasad, Elke and Halbert, Gavin and Robertson, John and McFarlan, Catriona and Nordon, Alison (2022) Application of multivariate curve resolution to in situ THz - Raman spectroscopy of amorphous solid dispersions in pharmaceutical products. In: CMAC Annual Open Day 2022, 2022-05-16 - 2022-05-18.

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Abstract

Off-line techniques such as differential scanning calorimetry (DSC) can be used to characterize solidified extrudates from a hot-melt extrusion (HME) process. However, off-line measurements are not representative of the melt mixture in the HME barrel. THz-Raman spectroscopy can be used to monitor solid dispersions of the melt mixture in situ. To avoid needing off-line reference measurements, calibration-free methods for spectral analysis are advantageous. Multivariate curve resolution (MCR) is a calibration-free method of resolving mixture spectra into pure component contributions using an iterative optimization within a set of constraints. The outputs are pure component spectra and concentration profiles for each component.

ORCID iDs

Vivattanaseth, Pattavet, Chong, Magdalene, Prasad, Elke ORCID logoORCID: https://orcid.org/0000-0002-5412-9374, Halbert, Gavin, Robertson, John ORCID logoORCID: https://orcid.org/0000-0002-2191-1319, McFarlan, Catriona ORCID logoORCID: https://orcid.org/0000-0003-1571-7533 and Nordon, Alison ORCID logoORCID: https://orcid.org/0000-0001-6553-8993;

Persistent Identifier

https://doi.org/10.17868/strath.00081776
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