FormNo. 203-821-244 01/05-REV0
LECO is a registered trademark of LECO Corporation
6
Figure5.
GCxGC-ECD calibration curve for Methoxychlor from 50 to 800 pg/µL. Note that the
concentrations are in pg/µL (listed in red near the points on the curve), but due to split injection at
a ratio of 50:1, the low point represents only 1 pg on column.
Table2.
Calibration curves extended to values lower than those used to quantify samples for
OCPs.
Pesticide
Low
point
(pg/µL)
Correlation
Coefficient
Tetrachloro-m-xylene
1
0.9983
alpha-HCH
0.5
0.9996
beta-HCH
0.5
0.9995
gamma-HCH
0.5
0.9995
delta-HCH
0.5
0.9994
Heptachlor
0.5
0.9993
Aldrin
0.5
0.9994
Heptachlor epoxide
0.5
0.9995
gamma-Chlordane
0.5
0.9997
Endosulfan I
0.5
0.9997
alpha-Chlordane
0.5
0.9996
Pesticide
Low
point
(pg/µL)
Correlation
Coefficient
Dieldrin
1
0.9996
4,4’-DDE
1
0.9996
Endrin
1
0.9995
Endosulfan II
1
0.9996
4,4’-DDD
1
0.9996
Endrin aldehyde
1
0.9987
Endosulfan sulfate
1
0.9995
4,4’-DDT
1
0.9996
Endrin ketone
1
0.9994
Methoxychlor
5
0.9997
Decachlorobiphenyl
1
0.9996
50
to 800 pg/µL
50
100
200
400
800
