Experiments in digital image colorimetry: Smartphone determination of acetaminophen

Honeychurch, Kevin; James, Heather

Abstract

Acetaminophen paracetamol) can be determined colorimetrically (scheme 1) by firstly, reducing ferricyanide to ferrocyanide. This can then be converted to the highly coloured Prussian Blue, following the addition of iron(III ). Traditionally, this is then measured using UV Vis spectrometry at 700 nm. This study explores the application of a
smartphone camera to capture an image of the colour produced. The RGB colour components of the image can then be analysed with the
aid of a free downloadable App.

• Presentation Conference Type: Poster
• Conference Name: #RSCPoster
• Start Date: Mar 5, 2025
• End Date: Mar 6, 2025
• Acceptance Date: Mar 5, 2025
• Online Publication Date: Mar 5, 2025
• Publication Date: Mar 5, 2025
• Deposit Date: Mar 6, 2025
• Publicly Available Date: Mar 6, 2025
• Peer Reviewed: Not Peer Reviewed
• Public URL: https://uwe-repository.worktribe.com/output/13914735