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Publication Title | Medical Cannabis Potency and Terpenes Analysis Using the SRI 8610C FID GC

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Medical Cannabis Potency and Terpenes Analysis Using the SRI 8610C FID GC

The cannabinoids (psychoactive components) and terpenes (aroma compounds) can be measured quantitatively on one 20-minute run using the stock medical cannabis potency column (15-meter MXT-500 with a .15 um film) on an 8610C FID Medical Cannabis Potency GC.

Refer to the “Medical Cannabis Po- tency” Document found on our web- site www.srigc.com in order to setup the software, extract and inject the sample, and interpret the results. The only difference between the potency analysis and running potency and ter- penes is the gain setting and the temperature program.

With the red lid open and staring down, the FID gain switch is located next to the FID detector on the far right of the GC. Usually the gain switch for the FID detector is set up to “MED”. For this analysis, put the switch in the middle position on “HIGH”. This will make the FID sensi- tivity about 20 times greater. This is important because the terpenes are present at much smaller concentra- tions in cannabis samples than the cannabinoids. This may present a problem with concentrates exceeding 40% THC (the peak will go off-scale) but typical cannabis flowers will pre- sent no problems. Remember to re- calibrate after changing the gain setting.

Terpenes Cannabinoids

Column

Gain Switch

SRI Tech Support: 310-214-5092 www.srigc.com

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