16/10/2026
Could mass spectrometry help detect illicit drug residues in real-world environments? ๐ฌ
A newly published study in the Journal of Mass Spectrometry by researchers from University of Surrey explores an intriguing application of analytical science: screening for illicit drug residues on surfaces in a UK pub using atmospheric solids analysis probe mass spectrometry (ASAP-MS).
The research team collected more than 400 surface swabs over three weeks, sampling common touchpoints including tables, the bar and bathroom surfaces. The study investigated the detection of co***ne, ketamine, amphetamine, diazepam and THC.
๐ What did the researchers find?
โข Drug residues were detected across all sampled touchpoint areas, with bathroom samples showing particularly notable findings, including co***ne traces in every bathroom sample analysed.
โข Targeted ASAP-MS analysis with minimal sample preparation detected trace amounts that had been missed during initial screening.
โข Direct, untargeted analysis showed potential for detecting larger quantities of certain substances, particularly co***ne.
โข Liquid chromatographyโmass spectrometry (LCโMS) was used for confirmatory analysis, highlighting the importance of combining rapid screening with established analytical methods.
๐ก Why does this matter?
Ambient ionisation mass spectrometry offers the potential for rapid analysis with minimal sample preparation. Developing these approaches could support future applications in forensic investigations, environmental screening and public health research, where timely information outside traditional laboratory settings is valuable.
An important caveat: detecting drug residues on a surface does not establish who deposited them, when they were deposited, or whether anyone experienced harmful exposure. These findings demonstrate analytical potential, not proof of drug use or risk to individual patrons.
This study is a compelling example of how analytical chemistry can move beyond the laboratory to investigate complex, real-world environments.
๐ Read the full open-access article:
https://doi.org/10.1002/jms.70121