Cannabis Testing

Cannabis Testing Instruments

Audit-ready accuracy for regulated labs, new or Certified Pre-Owned. Choose the latest technology with full manufacturer warranties, or OEM-level performance and documentation at a fraction of the cost. Ideal for start-ups and high-throughput labs alike.

New or CPOYour choice, one partner
Up to 50%Savings with Certified Pre-Owned
22+ yearsAverage engineer experience

Your Choice

New or Certified Pre-Owned, it’s up to you

Every core cannabis testing platform is available both ways. Pick what fits your budget and timeline, or mix new and Certified Pre-Owned across your lab.

New instruments

The latest technology, straight from the manufacturer.

  • Full manufacturer warranties
  • Current models and software
  • Installation and training from GMI
  • Exclusive U.S. distributor of KNAUER
Best value

Certified Pre-Owned

OEM-level performance at a fraction of the cost.

  • Save up to 50% versus new
  • Ready to ship, no OEM backlog
  • Refurbished to original specs with documented calibrations
  • Warranty and service plans available
Core Instruments

The instruments every cannabis lab needs

The cannabis market is scaling fast, and so are expectations for defensible, standards-based testing. Each platform below is available new or Certified Pre-Owned.

HPLC system for cannabis potency testing

HPLC

Liquid Chromatography

Quantifies cannabinoid potency and accurately determines levels of THC, THCA, CBD, CBDA, and CBN.

Gas chromatograph for cannabis terpene and residual solvent testing

GC

Gas Chromatography

Terpene profiling and residual solvent testing, with GC-MS/MS for targeted pesticide confirmation.

Mass spectrometer for cannabis pesticide, mycotoxin, and heavy metal testing

MS

Mass Spectrometry

LC-MS/MS for multi-residue pesticide and mycotoxin panels, and ICP-MS for heavy metals.

Benchtop centrifuge for cannabis extraction and sample prep

CENTRIFUGE

Benchtop & Ultra Centrifuges

Separate samples quickly and accurately to maximize efficiency. Ideal for any extraction application.

Your Testing Panel

What you need to measure, and how

A comprehensive cannabis panel spans six areas. Here’s what each one covers and the instruments that handle it.

Cannabinoids & terpenes

Potency, profile, and label claim verification.

HPLC/UPLC (DAD/UV, FLD)GC-FID

Residual solvents

Confirmation that extraction artifacts meet limits.

GC-FIDGC-MS

Pesticides & mycotoxins

Ultra-trace detection at low-ppb LOQs for consumer safety.

LC-MS/MSGC-MS/MS

Heavy metals

Lead, arsenic, cadmium, and mercury screening in plant material and finished goods.

ICP-MS

Microbial contamination

Yeast and mold, pathogenic bacteria, and total aerobic counts.

qPCRCulture-based systems

Moisture & water activity

Stability and shelf-life indicators for flower and concentrates.

Moisture analyzers

Compliance

Compliance and data integrity, built in

Regulatory frameworks vary by jurisdiction, but auditors consistently expect the same fundamentals.

  • Method validation & system suitabilitySelectivity, linearity, accuracy, precision, LOD/LOQ, and robustness, with suitability criteria before batch release.
  • Traceable calibrationsFor flows, temperatures, wavelengths and mass axis, and detector response.
  • Data integrity controls21 CFR Part 11-supportive software, audit trails, user roles, and secure e-records.
  • Quality documentationSOPs, maintenance logs, and change control.
Certified Pre-Owned Benefits

Why many labs go Certified Pre-Owned

Prefer new? We offer that too. Here’s why so many cannabis labs choose GMI Certified Pre-Owned instead.

Verified performanceRefurbished to original specifications with documented calibrations.

Immediate availabilityReady-to-ship, cannabis-configured systems with no OEM backlog.

Warranty & service plansProtect uptime with critical spares and preventive maintenance.

Capital efficiencySave up to 50% versus new and invest in standards, consumables, and staff.

Top brandsAgilent, Thermo Fisher, PerkinElmer, and more, matched to your state’s analyte list.

End-to-End Support

Faster readiness, from install to audit

Whether you’re launching a new facility or expanding throughput, GMI helps you reach validated performance quickly, without overspending.

Analytical HPLC system in a testing lab

  • 01
    Site planning & installationMeet electrical, HVAC, and venting needs before your instruments arrive.
  • 02
    Method transfer assistancePotency, solvents, pesticides, metals, and microbes, including matrix-matched calibration and internal-standard strategies.
  • 03
    Training & SOP templatesFor routine operation, QC checks, and troubleshooting.
  • 04
    Ongoing performance verificationControl charts, continuing calibration verification, blanks, spikes, and duplicates.
Equip Your Lab

Credible, compliant results start here

Deploy audit-ready potency and safety testing with research-grade confidence. Tell us your panel and budget, and we’ll recommend new, Certified Pre-Owned, or a mix of both.