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Peaks | |
---|---|
1. | Dibromochloropropane |
2. | Hexachlorocyclopentadiene |
3. | Tetrachloro-m-xylene |
4. | cis-Diallate |
5. | Hexachlorobenzene |
6. | trans-Diallate |
7. | α-BHC |
8. | γ-BHC |
9. | β-BHC |
10. | δ-BHC |
11. | Heptachlor |
12. | Aldrin |
13. | Isodrin |
14. | Heptachlor epoxide |
Peaks | |
---|---|
15. | trans-Chlordane |
16. | cis-Chlordane |
17. | Endosulfan I |
18. | 4,4'-DDE |
19. | Dieldrin |
20. | Endrin/chlorobenzilate |
21. | 4,4'-DDD |
22. | Endosulfan II |
23. | 4,4'-DDT |
24. | Endrin aldehyde |
25. | Endosulfan sulfate |
26. | Methoxychlor |
27. | Endrin ketone |
28. | Decachlorobiphenyl |
Column | Rtx-CLPesticides2, 30 m, 0.32 mm ID, 0.25 µm (cat.# 11324) |
---|---|
Standard/Sample | Organochlorine pesticide mix AB #1 (cat.# 32291) |
Pesticide surrogate mix, EPA 8080, 8081 (cat.# 32000) | |
Organochlorine pesticide mix C #1 (cat.# 32296) | |
Diluent: | Hexane |
Injection | Direct |
Liner: | Drilled Uniliner |
Inj. Temp.: | 220 °C |
Oven | |
Oven Temp.: | 80 °C (hold 1 min) to 300 °C at 9 °C/min (hold 10 min) |
Carrier Gas | He |
Detector | ECD @ 310 °C |
---|---|
Sample Preparation | Sample: 0.5 - 1.0 mL solvent extracted sample exchanged into hexane Standards and surrogates were spiked into hexane Tube: 3 mL, 250 mg CarboPrep 90 Tube conditioning: Apply 2 mL CH2Cl2:hexane (20:80) and pass through tube Extract cleanup: Prepare collection rack with vials, place under each tube. Add 0.5 - 1.0 mL of extracted sample to tube and collect all solutions passing through. Do not expose carbon bed to air. Add 20 mL of CH2Cl2:hexane (20:80) to tube and allow it to elute using gravity feed. Extract concentration: Solvent exchange extract to hexane Do not allow extracts to dry completely Concentrate extract to 0.5 - 1.0 mL Sample is ready for analysis. |
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