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

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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