AGRISCIENCE LABORATORIES

HS-GC-FID State certified

Residual Solvents

We analyse residual solvents by headspace gas chromatography with flame-ionization detection.

Arrange testing (303) 292-3800

Chemical solvents extract the valuable therapeutic and psychoactive compounds from flower, including cannabinoids and terpenes. The concentrated extracts can be heated and inhaled or infused into other products. Residual solvents are the by-products of those extraction processes.

Solvents and limits

Limits in parts per million (ppm), per Colorado law.
SolventLimit
Acetone< 1000
Butanes< 1000
Ethanol< 1000
Heptanes< 1000
Isopropyl Alcohol< 1000
Propane< 1000
Pentane< 1000
Ethyl Acetate< 1000
Methanol< 600
Total Xylenes< 430
Toluene< 180
Hexane< 60
Benzene< 2

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