RestekCorporation • (800)356-1688 •
Figure4
Siltek
™
-deactivatedUniliner
®
inlet liners result in less than1% endrinbreakdown
and undetectableDDT breakdown.
Figure5
Acompletely deactivatedGC system shows excellent resolutionof the complete list of the chlorinatedpesticides in
US EPAMethod 8081A.
1. 2,4,5,6-tetrachloro-
m
-xylene
2. endrin
3. 4,4'-DDT
4. methoxychlor
5. decachlorobiphenyl
30m, 0.53mm ID, 0.42µmRtx
®
-CLPesticides2 (cat.# 11340).
Inj.:
1µL of 50pg/µL standard.
Oven temp.:
120°C (hold 1min.) to
300°C@ 9°C/min. (hold 10min.);
Inj. temp.:
250°C;
ECD temp.:
300°C;
Carrier gas:
helium.
1
2
3
4
5
min. 0
10
20
30
30m, 0.32mm ID, 0.5µmRtx
®
-CLPesticides (cat.# 11139) with a 5m, 0.32mm ID Siltek
™
-deactivated guard column (cat.# 10027) and a
Siltek
™
-deactivated gooseneck liner (cat.# 20798-214.1).
On-column conc.:
16-160pg;
Oven temp.:
120°C (hold 1min.) to 300°C@ 9°C/min.
(hold 10min.);
Inj. temp.:
250°C, splitless (hold for 0.75min.);
ECD temp.:
300°Cwith anode purge;
Carrier gas:
helium, 31cm/sec.
1. 2,4,5,6-tetrachloro-
m
-xylene
2.
-BHC
3. -BHC
4. -BHC
5. -BHC
6. heptachlor
7. aldrin
8. heptachlor epoxide
9. -chlordane
10.
-chlordane
11. 4,4'-DDE
12. endosulfan I
13. dieldrin
14. endrin
15. 4,4'-DDD
16. endosulfan II
17. 4,4'-DDT
18. endrin aldehyde
19. methoxychlor
20. endosulfan sulfate
21. endrinketone
22. decachlorobiphenyl
1
2 3
4
5
7 6
8
min. 8
10
12
14
16
18
20
22
24
9
10
11
12
13
14
15
16
17
18
19
20
21
22
