Patent ID: 11933731
Assignee: HOUND LABS, INC.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 10:
11. A method using Surface-Enhanced Raman Spectroscopy (SERS) for detection of tetrahydrocannabinol (THC) in a breath sample, the method comprising:
determining an amount of THC captured from a breath sample using SERS using a SERS-active substrate, wherein the SERS-active substrate comprises one or more capture sites for a breath sample;
comparing the determined amount of THC captured from the breath sample to a threshold level for THC in breath;
indicating whether the determined amount of THC captured from the breath sample exceeds the threshold level; and
wherein the threshold level of THC is correlated with an average amount of THC in breath between 2 and 3 hours after inhalation.