Cannabix Technologies Inc. reported that its Mass Spectrometer Breath Sampler (MSBS) technology along with the Breath Collection Unit (BCU) have been used to quantify delta-9 THC levels from smoking and edibles in humans. This emerging capability is a significant milestone and a major leap forward in the arena of drug testing. Virtually all levels of law enforcement, government, and industry have an interest in quantifying THC levels in breath in an efficient and reliable manner which will enable the ability to correlate breath concentrations with established blood levels.

Cannabix has been focused on developing the MSBS as a simple effective way to test for recent use of marijuana and to confirm presence of delta-9 THC in breath using gold-standard mass spectrometry (MS). Over recent months, the Company has developed the capability to quantify delta-9 THC in breath samples using Cannabix's proprietary technology. Importance of Quantification: Efficient and reliable quantifying of delta-9 THC levels in breath has been a long-standing goal of researchers and industry alike, to build consensus for standardization, public safety, and the legal system.

This is particularly important in regions where cannabis is legalized for both medical and recreational use where clear guidelines are urgently needed. The quantification of delta-9 THC in breath presents an opportunity to help establish a legal limit for THC in breath, a limit which has not yet been achieved. Cannabix's hardware (MSBS & BCU) coupled to gold standard MS is now advancing this capability.

Quantification method using Cannabix Hardware: Over recent months, Cannabix scientists have been focussing on sample quantification results using THC-D3 internal standard after subjects have smoked or consumed marijuana edibles. Concentrations per sample cartridge are calculated using pre-determined calibration curve which are generated from cartridges with known amounts of THC-D3 using the MS Breath Sampler front-end hardware. The curve was generated based on the ratio between the Area Under the Curve (AUC) of the main fragments (193m/z for THC and 196m/z for THC-D3).

The Level of Detection (LOD) and Quantification (LOQ) were calculated in accordance with the ICH guidelines (3). MSBS Technology and BCU: The Company's handheld Breath Collection Unit and mass spectrometer coupled laboratory MS Breath Sampler are being used together to provide a new method for drug detection that complements gold-standard mass spectrometry with measurements taking under 2 minutes to acquire. This equipment significantly simplifies laboratory analysis methods, reduces sample turnaround times (thus minimizing operating costs), while maintaining sensitive, precise results.

MSBS compared to legacy LCMS methods: The MSBS is a novel method for efficient collection of analytes of low volatility from human breath utilizing liquid secondary adsorption (LSA) technique. The novel LSA concept has successfully demonstrated efficient capturing and releasing of THC using the breath aerosol as a carrier of solid and viscous liquid particle analytes as well as a secondary adsorbent to prevent sample loss from surface contact deposition. Legacy conventional quantifying methods rely on the use of complex time consuming liquid chromatography mass spectrometry (LCMS) research based methods which require multiple time consuming preparation steps (e.g., solvent extraction and preconcentration) that are plagued with sample loss.

This type of analysis is complex and can take hours to perform. Using the Cannabix equipment the results of a breath sample can be processed within 2 minutes without any sample preparation, preconcentration, or derivatisation steps resulting in an efficient and simple workflow. The Company also reports that BCU hardware pilot in Warren County, PA has now been re-directed to another unrelated pilot site.

The Company was informed that due to the small size of the county, and limited number of testing opportunities at roadside, the hardware would be of better use at a different site.