Industrial Hemp Testing

We are a trusted laboratory located in St. Paul, Minnesota for industrial hemp testing. Our independent laboratory is A2LA accredited for cannabis testing.


Since 2015 we have been helping state agencies and industrial hemp license holders meet their research goals. In doing so, our services reflect the most proactive testing available to industrial hemp growers and processors.

  • Regulatory testing for THC determined by HPLC/UV
  • Potency testing for hemp-based cannabinoids CBD, CBC, CBDA, CBG, CBN, Δ9‐THC, and Δ9‐THCA determined by HPLC/UV
  • Residual aflatoxins screening measured in parts-per-billion (ppb) determined by UPLC/MS/MS
  • Residual pesticides screening measured in parts-per-million (ppm) determined by LC/TOF/MS or LC/MS/MS
  • Residual solvents screening determined by GC/FID
  • Terpene profile for identifying compounds that make up the final product color, aroma, and flavor determined by GC/MS
  • Microbiological contamination screening for yeast, mold, and bacteria
  • Heavy metals testing for arsenic, cadmium, lead, mercury determined by ICP/OES or ICP/MS (our most common metals profile)


Saint Paul, MN

Whether you have questions about our services, need assistance, or have regulatory concerns, we can help.

Address: 88 Empire Drive, Saint Paul, MN 55103


Plant material may be submitted fresh, dried, cured, or in pellets. Fresh plant clippings should fill a small paper or plastic sandwich bag. For dried/cured hemp samples, submit at least 5 grams of plant material.

For more guidance on field sampling and sample size, please refer to the MDA Inspection and Sampling Protocol.

To submit a sample, you must fill out our Hemp Chain of Custody (CoC) form. Please label your sample(s) and provide the sample name(s) on the CoC form. Mark each analysis that you would like performed for each sample. Each analysis has a separate cost. Package your sample(s) using a clean bag, jar, or plastic container. Submit sample(s) with the completed CoC form. Use a shipping courier service of your choice, or deliver the sample(s) in person.

Sample Size for Cannabinoids: At least 5 grams of plant material. 1-2 grams for isolates. Additional tests performed on a sample may require more sample material.

Shipping Address
Legend Technical Services, Inc.
Attn: Sample Receiving
88 Empire Drive
St. Paul, MN 55103

Sample Receiving is open Monday through Friday, 8 a.m. to 5 p.m., and closed on Saturday and Sunday. Packages delivered on Saturday or Sunday will be received the following business day. Submissions may also be made in person at Sample Receiving located at: 88 Empire Drive, St. Paul, MN 55103


The St. Paul, MN location is open 8:00 a.m. to 5:00 p.m. CST, Monday through Friday. This location may close during major holidays.

Sample receipt and analyses outside these hours can be arranged with prior notice.

We offer discounted pricing to clients who have the need for long-term analytical services or who have projects with substantial sample volume.  For a specific price quotation, please contact our Sales Department at (651) 221-4089, or your assigned Project Manager.

Our payment terms are net 30 days from the date on the invoice (see our Credit Application for term details).  VISA and Mastercard are accepted.

If a business account is not approved or provided, payment is due upon sample submission.

Current standard turnaround time (TAT) is 5 – 7 business days for most analyses based on laboratory sample load.

Rush TAT availability is dependent on laboratory capacity. Please contact your assigned Project Manager for laboratory approval. Rush surcharges are dependent on the TAT that is provided.

Analytical reports and electronic data deliverables (EDDs) may be accessed online (ClientConnect) through our secure data access portal.  Reports and quality control data can be provided in various formats, including Microsoft Excel, Adobe Acrobat PDF, and Microsoft Access. Customized EDDs can be provided for a fee, depending on the specifications.

Have more questions?

Whether you have questions about our services, need assistance, or have regulatory concerns, we can help.
Contact any of our locations.