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15
Figure 5
0.53mm ID columns for the best analysis of contaminated pesticide samples (USEPAMethod 8081).
Figure 4
0.32mm ID columns provide best capacity and resolution of all 22 pesticides used inUSEPAMethod 8081.
1. 2,4,5,6-tetrachloro-
m-xylene
2.
α
-BHC (
α
-HCH)
3.
γ
-BHC (lindane)
4.
β
-BHC (
β
-HCH)
5.
δ
-BHC (
δ
-HCH)
6. heptachlor
7. aldrin
8. heptachlorepoxide
9.
γ
-chlordane
10.
α
-chlordane
11. 4,4'-DDE
12. endosulfan I
13. dieldrin
14. endrin
15. 4,4'-DDD
16. endosulfan II
17. 4,4'-DDT
18. endrinaldehyde
19. methoxychlor
20. ensdosulfan sulfate
21. endrinketone
22. decachlorobiphenyl
On-column concentration:
16-160pg organochloride pesticidemixAB#2 (cat.#32292);
Oven temp.:
120°C (hold1min.) to 300°C
(hold10min.) @9°C/min.;
Inj. port:
Direct, Uniliner
®
sleeve (cat.#20335), at 200°C;
Detector:
ECD, 300°CwithAnode Purge;
Dead time:
1.9min.;
Head pressure:
8.7psi (constant);
Flow rate:
1.3mL/min. @ 120°C, Helium.
Rtx
®
-CLPesticides
30m, 0.32mm ID, 0.50µm (cat.# 11139)
Rtx
®
-CLPesticides2
30m, 0.32mm ID, 0.25µm (cat.# 11324)
9
10
11
12
13
14
15
16
17
18
19
20
1 2
3
4
5
6
7
8
21
22
9
10
11
12
13
14
15
16
17
18
19
20
1
2 3
4
5
6 7
8
21
22
10
22 min.
10
24
1. 2,4,5,6-tetrachloro-m-
xylene
2.
α
-BHC (
α
-HCH)
3.
γ
-BHC (lindane)
4.
β
-BHC (
β
-HCH)
5.
δ
-BHC (
δ
-HCH)
6. heptachlor
7. aldrin
8. heptachlorepoxide
9.
γ
-chlordane
10.
α
-chlordane
11. 4,4'-DDE
12. endosulfan I
13. dieldrin
14. endrin
15. 4,4'-DDD
16. endosulfan II
17. 4,4'-DDT
18. endrinaldehyde
19. methoxychlor
20. ensdosulfan sulfate
21. endrinketone
22. decachlorobiphenyl
On-column concentration:
16-160pg organochloride pesticidemixAB#2 (cat.#32292);
Oven temp.:
120°C (hold1min.) to 300°C
(hold10min.) @9°C/min.;
Inj. port:
Direct, Uniliner
®
sleeve (cat.#20335), at 200°C;
Detector:
ECD, 300°CwithAnode Purge;
Dead time:
1.9min.;
Head pressure:
3psi (constant);
Flow rate:
2.83mL/min. @ 120°C, Helium.
Rtx
®
-CLPesticides2
30m, 0.53mm ID, 0.42µm (cat.# 11340)
Rtx
®
-CLPesticides
30m, 0.53mm ID, 0.50µm (cat.# 11140)
10
22 min. 10
24
1
2
3
4
5
6 7
8 9
10
11
12
13
14
15
16
17
18
19
20
21
22
1
2
3
4
5
7
6
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
