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Sulaf Assi - Articles and news items

Raman spectroscopy: In-depth focus 2013

Issue 5 2013, Raman Spectroscopy, Supplements / 25 October 2013 / Sulaf Assi (Bournemouth University), Xiaolin Cao (Amgen Inc.)

Raw material identification using dual laser handheld Raman spectroscopy.
Raman spectroscopy in support of biotherapeutic production: applications in protein formulation and purification
Raman Spectroscopy Roundtable.

Figure 1 Baseline treated Raman spectra of Zirtek 10 milligram tablet (blue) and titanium dioxide (red) measured using the Ahura Truscan instrument

Authentication of medicines using Raman spectroscopy

Issue 1 2011, Raman Spectroscopy / 16 February 2011 / Sulaf Assi, University of Hertfordshire, and Robert Watt & Tony Moffat, The School of Pharmacy, University of London

Raman spectroscopy offers a rapid and non-destructive technique for the identification of counterfeit medicines. Handheld Raman instruments offer the advantages of carrying the laboratory to the sample and giving a rapid pass or fail answer for the medicine inspected. It can identify a medicine regardless of its physical form as a tablet, powder, ointment, cream or liquid. However, the technique is limited as not all species of a medicine have a Raman scattering. Thus, the Raman spectrum obtained upon measuring a medicine might be due to the active pharmaceutical ingredient or any other excipient in the bulk or the coating of the formulation.