Butane andResidual Solvents inMedical Cannabis
Flowers andConcentrates using theSRI 8610CFIDGC
Remove the cap froma 40mLvial
and place it ona balance capable
of reading1milligram ( .001
gram ).Abalance like this canbe
purchasedbrandnew for less than
$300 oneBay.
With the40mLvial on the balance,
tare the reading (make the read-
ing 0.000 ). Carefully add100milli-
grams ofmanicured cannabis to
the vial. Drop thebits of cannabis
into the vial slowly until the reading
is close to100milligrams.
Don’t worry if you are slightly un-
der or above 100. In thephotoat
right, the reading is 98milligrams
which is closeenough. Qualitative
butaneand residual solvent analy-
sis does not depend onan exact
measurement of sample, but the
operatormay find it advantageous
to use the same sample for a sub-
sequent potency analysis. In this
case, the readingon the scalewill
be important inproperlymeasuring
the cannabis sample. See the
PeakSimple tutorial describing
Medical CannabisPotency.
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