573
GC CHROMATOGRAMS |
ENVIRONMENTAL
Pest icides
Organophosphorus Pesticides
US EPA Method 8141A
Rtx®-OPPesticides2
GC_EV00602
1. dichlorvos
2. hexamethylphosphoramide
3. mevinphos
4. trichlorfon
5. TEPP
6. demeton-O
7. thionazin
8. tributyl phosphate (IS)
9. ethoprop
10. naled
11. sulfotepp
12. phorate
13. dicrotophos
14. demeton-S
15. monocrotophos
16. terbufos
17. dimethoate
18. dioxathion
19. fonophos
20. diazinon
21. disulfoton
22. phosphamidon isomer
23. dichlorofenthion
24. chlorpyrifos methyl
25. phosphamidon
26. parathion-methyl
27. ronnel
28. fenitrothion
29. aspon
30. malathion
31. chlorpyrifos
32. trichloronate
33. parathion-ethyl
34. fenthion
35. merphos
36. chlorfenvinphos
37. crotoxyphos
38. stirofos
39. tokuthion
40. merphos oxone
(breakdown product)
41. ethion
42. fensulfothion
43 bolstar
44. carbophenothion
45. famphur
46. triphenyl phosphate (SS)
47. EPN
48. phosmet
49. leptophos
50. tri-
o
-cresyl phosphate
51. azinphos-methyl
52. azinphos-ethyl
53. coumaphos
Column:
Rtx
®
-OPPesticides2, 30m, 0.25mm ID, 0.25µm (cat.# 11243)
Sample:
US EPA Method 8141A Custom Standard Mix 1µL 100ppm
(100ng on column)
Triphenylphosphate Standard (cat.# 32281)
Tributylphosphate Standard (cat.# 32280)
8140/8141 OP Pesticides Calibration Mix A (cat.# 32277)
8141 OP Pesticides Calibration Mix B (cat.# 32278)
Custom Mixes: Call Restek for Information
Inj.:
1.0µL splitless (hold 0.4 min.), 4mm double
gooseneck inlet liner (cat.# 20785)
Inj. temp.:
250°C
Carrier gas:
helium, constant flow
Flow rate:
1.0mL/min.
Oven temp.:
80°C (hold 0.5 min.) to 140°C @ 20°C/min.
to 210°C @ 4°C/min. (hold 1 min.) to
280°C @ 30°C (hold 5 min.)
Det:
MS
Transfer line temp.: 280°C
Scan range:
35-400amu
Ionization:
EI
Best column for most
resolved compounds
for Method 8141A.
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TelNo : 03 9762 2034 . . . in AUSTRALIA
Mar 2011
