91
GCCOLUMNS |
APPLICATION-SPECIFICCOLUMNS
Environmental
• Better separations
• Faster analysis
restek
innovation
!
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. chlorpyrifosmethyl
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 EPAMethod 8141A Custom StandardMix 1µL 100ppm
(100ng on column)
Triphenylphosphate Standard (cat.# 32281)
Tributylphosphate Standard (cat.# 32280)
8140/8141OP Pesticides CalibrationMix A (cat.# 32277)
8141OP Pesticides CalibrationMix B (cat.# 32278)
CustomMixes: Call Restek for Information
Inj.:
1.0µL splitless (hold 0.4min.), 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 0.5min.) to 140°C@ 20°C/min.
to 210°C@ 4°C/min. (hold 1min.) to
280°C@ 30°C (hold 5min.)
Det:
MS
Transfer line temp.: 280°C
Scan range:
35-400amu
Ionization:
EI
Organophosphoruspesticidesby
USEPAMethod8141Aonan
Rtx®-OPPesticides2column.
Organophosphorus PesticidesAnalysis
Best columnchoice to resolve
Method8141Acompounds!
FAST
efficientanalysisof
OPPs inEPA
Method8141A
Rtx®-OPPesticidesColumns
(fusedsilica)
Rtx®-OPPesticides/Rtx®-OPPesticides2
(proprietaryCrossbond®phases)
• Application-specific columns for organophosphorus pesticides; best column combi-
nation forUSEPAMethod8141A.
• Lowbleed—ideal forGC/FPD,GC/NPD, orGC/MS analyses.
• Stable to330 °C.
Using sophisticated computermodeling software,we created two stationary phases for
separating the 53 organophosphorus pesticides (OPP) listed in EPAMethod 8141A.
Separation is improved, and analysis time is significantly reduced, compared to other
columns.Theextendedupper temperature limitof thesephases (330 °C)allowsanalysts
to bake out highmolecular weight contamination typically associated with pesticide
samples.The lowbleed columns are aperfectmatch for sensitive detection systems.
Rtx®-OPPesticides2Columns
(fusedsilica)
ID
df
temp. limits
30-Meter
0.32mm 0.50µm -20 to 310/330°C 11239
0.53mm 0.83µm -20 to 310/330°C 11240
ID
df
temp. limits
20-Meter
30-Meter
0.18mm 0.20µm -20 to 310/330°C 11244
$460
0.25mm 0.25µm -20 to 310/330°C
11243
0.32mm 0.32µm -20 to 310/330°C
11241
0.53mm 0.50µm -20 to 310/330°C
11242
Website :
E-mail :
TelNo : 03 9762 2034 . . . inAUSTRALIA
Mar 2011
