Medical CannabisPesticide
Screening using theSRI 8610CGC
Create a calibration curve for the
CPP in bothNPD andDELCD chan-
nels. Note that the amount injected
is set to 10.
We injected 1ul of CPP standard
which contains 1000 nanograms of
CPP. Sincewewill be desorbing
100milligrams of cannabis, 1000
nanograms is 10ppm, hence the
number 10 in the amount injected
column.
Drag the retentionwindow across
the entire screen except for the first
2minutes. Thiswill have the effect
of adding up all the peaks de-
tected during the analysis and
applying theCPP calibration to
the total of the peaks, regard-
less of whether a particular
peak isCPPor another pesti-
cide.
Unlike the potency analysis
where the results are reported
inPercent, the pesticide results
are reported in ppm ( parts per
million ) because the concentra-
tion should be very low.
Page10
Amount injected is 10
Drag thewindow from 2
minutes to 11.9minutes
1,000,000ppm=100%
100,000ppm=10%
10,000ppm=1%
1000ppm=.1%
100ppm=.01%
10ppm=.001%
1ppm=.0001%
