Cannabinoids (THC and related chemicals) are analyzed by UHPLC (ultra-high performance liquid chromatography) calibrated with Certified Reference Materials (CRMs) from ISO 17025/Guide 34 accredited manufacturers. Potency results are available for all 11 cannabinoids for which CRMs are currently available (THCA, delta-9-THC, delta-8-THC, CBDA, CBD, CBN, THCV, CBDV, CBGA, CBG, and CBC). Though many other cannabinoids and their precursors are of interest, they cannot be accurately measured without comparison to certified standards. As CRMs for more cannabinoids become commercially available, we will expand the potency profile accordingly.


RSA is performed on an Agilent 7890 gas chromatograph (GC/FID) interfaced with an Agilent 7697 headspace sampler. Our method is based AOAC International standards. AOAC is a globally recognized, 501(c) (3), independent, 3rd party, not-for-profit association.  AOAC methodologies are often adopted by governing agencies for standardization.  Cannabis contains a myriad of organic compounds which occasionally co-elute with regulated analytes such as hexane and heptane.  We have developed a novel confirmatory assay to confirm or rule out the presence of these analytes.  This second analysis of your product is provided for free as part of our comprehensive residual solvent analysis methodology.  This procedure is unique and not readily available by other laboratories in Colorado. Our goal is to provide the most accurate results for your cannabis business. In addition to list of residual solvents mandated for Colorado testing, you may request testing results for ethanol, acetone, or isopropyl alcohol.  Please contact us to requests the analysis of other solvents of interest.


Microbial analysis for toxic bacteria and fungi is provided with a combination of advanced PCR technologies and traditional plating methods. The following microbial contaminants are analyzed as part of our Standard Microbial Package: Shiga-toxin producing Escherichia coli (STEC), Salmonella species, and Total Yeast & Mold.


Current MED regulations require a determination of homogeneity for all edibles. This is part of our standard package offered for all edible manufactures. In addition, many concentrate makers wish to understand the homogeneity of their product not only for hash oils (sold to edible manufacturers) but also for shatters which differ in concentration for residual solvents based on the purging process and product thickness.We can offer clients perspective on how to sample their product for a better understanding of homogeneity and so that concentrate producers can provide their clients a more consistent product.As mandated homogeneity testing becomes obsolete, we will continue to assist clients with simple procedures for ensuring consistent edible production.


Pesticide usage on cannabis is a hot button issue in Colorado. Nordic Analytical Laboratories is currently screening for the 15 analysts anticipated to be required by the MED after a certification process is in place.


There has been considerable discussion within the marijuana community about what constitutes a normalized THCA result. Often results can differ from sample to sample simply based on moisture content of the plant. Wet plants can be as high as 30% moisture where a dry plant may only be 5% moisture. This difference in moisture significantly changes the weight of the plant and subsequently can cause significant changes in THCA reported percentages. In order to reduce this variability and provide a more standardized result we offer % moisture analyses at no additional cost with any potency test. This information can provide valuable information to the grower who wants to understand the true concentration of cannabinoids with significantly less reporting variability from plant to plant.


Please feel free to contact us for any additional help with process validation, regulatory compliance, or scientific inquiries. We will routinely provide free consulting as part of our business relationship with clients. For larger projects or custom analytical methods that require significant laboratory resources, please call to set up a meeting with Laboratory Director Matthew Ryle.