01
Cannabinoid Potency Testing
Accurate quantification of THC, THCA, CBD, CBDA, and other major and minor cannabinoids to support label claims and MCA compliance. Results are reported on a dry-weight or as-received basis as required.
Analytical Excellence
Accurate Testing.
Confident Products.
Reliable analytical testing for cannabis and cannabinoid products, helping Maryland operators meet testing requirements and make informed product decisions.
Statewide Service
Testing support throughout Maryland
From potency and contaminants to physical quality checks, Onyx Testing provides analytical services designed around the needs of licensed cannabis businesses.
(240) 901-4706Our Services
Comprehensive Cannabis Testing
Targeted analytical testing to help verify product quality, safety, labeling, and regulatory compliance.
02
Pesticide & Mycotoxin Screening
Sensitive LC-MS/MS analysis for pesticide residues and mycotoxins, including aflatoxins B1, B2, G1, G2 and ochratoxin A, to help verify compliance with Maryland action limits.
03
Residual Solvents Analysis
Headspace GC-FID testing for residual solvents in concentrates, vapes, and extracts. Ideal for hydrocarbon, ethanol, and CO₂ extraction operations.
04
Heavy Metals Testing
ICP-MS analysis for arsenic, cadmium, lead, chromium, and mercury to identify contamination from soil, water, nutrients, or hardware such as vape cartridges.
05
Microbial Contaminant Testing
Screening for harmful microorganisms to support product safety and quality requirements.
06
Moisture, Water Activity & Foreign Matter
Physical quality checks that help prevent microbial growth, verify shelf stability, and confirm products are free of visible contaminants.
Our Facility
See Where the Testing Happens
Take a look inside the Onyx Testing facility and the analytical equipment used to support accurate, reliable testing.
Why Onyx Testing
Analytical Excellence
Focused testing services backed by modern analytical methods and a commitment to clear, dependable results.
Statewide Service
Serving cannabis businesses throughout Maryland.
Modern Analysis
LC-MS/MS, GC-FID, and ICP-MS methods across key testing categories.
Compliance Focused
Testing designed to support Maryland requirements and product quality decisions.
Get Started
Need a test?
Talk to Onyx.
Contact us to discuss your testing needs, products, turnaround requirements, and next steps.