Topical review on monitoring tetrahydrocannabinol in breath

Legalization of cannabis for recreational use has compelled governments to seek new tools to
accurately monitor Δ9-tetrahydrocannabinol (Δ9-THC) and understand its effect on impairment. Various
methods have been employed to measure Δ9-THC, and its respective metabolites, in different
biological matrices. Recently, breath analysis has gained interest as a non-invasive method for the
detection of chemicals that are either produced as part of biological processes or are absorbed from
the environment. Existing breath analyzers function by analyzing previously collected samples or by
direct real-time analysis. Portable hand-held devices are of particular interest for law enforcement
and personal use. This paper reviews and compares both commercially available and prototype devices
that proclaim Δ9-THC detection in exhaled breath using methods such as Field Asymmetric Ion Mobility
Spectrometry, Semiconductor-Enriched Single-Walled Carbon Nanotube chemiresistors, Liquid
Chromatography ...

Source: Journal of Breath Research - May 11, 2020 Category: Respiratory Medicine Authors: Hamed Mirzaei, Allen O ’Brien, Nishat Tasnim, Adithya Ravishankara, Hamed Tahmooressi and Mina Hoorfar Source Type: research