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GCxGC-TOFMS Analysis of Multi-Pesticide Standard Using Rxi-5Sil MS and Rtx-200
| Peaks | |
|---|---|
| 1. | Methamidophos |
| 2. | Dichlorvos |
| 3. | 1,2,3,5-Tetrachlorobenzene |
| 4. | Mevinphos |
| 5. | Acephate |
| 6. | Pentachlorobenzene |
| 7. | o-Phenylphenol |
| 8. | Tetrachloronitrobenzene (Tecnazene) |
| 9. | Omethoate |
| 10. | 2,3,5,6-Tetrachloroaniline |
| 11. | Alpha-BHC |
| 12. | Hexachlorobenzene |
| 13. | Pentachloroanisole |
| 14. | Dimethoate |
| 15. | Beta-BHC |
| 16. | Pentachloronitrobenzene |
| 17. | Pentachlorobenzonitrile |
| 18. | Gamma-BHC |
| 19. | Chlorothalonil |
| 20. | Anthracene |
| 21. | Diazinon |
| 22. | delta-BHC |
| 23. | Pentachloroaniline |
| 24. | Vinclozolin |
| 25. | Carbaryl |
| 26. | Metalaxyl |
| 27. | Pentachlorothioanisole |
| 28. | Pirimiphos methyl |
| 29. | Methiocarb |
| 30. | Dichlofluanid |
| 31. | Malathion |
| 32. | Chlorpyrifos |
| 33. | Fenthion |
| 34. | DCPA methyl ester (Chlorthal-dimethyl) |
| 35. | Parathion |
| 36. | Cyprodinil |
| Peaks | |
|---|---|
| 37. | Heptachlor epoxide |
| 38. | Thiabendazole |
| 39. | Captan |
| 40. | Folpet |
| 41. | Procymidone |
| 42. | Endosulfan I |
| 43. | Imazalil |
| 44. | 4,4'-DDE |
| 45. | Dieldrin |
| 46. | Myclobutanil |
| 47. | Endrin |
| 48. | Endosulfan II |
| 49. | Oxadixyl |
| 50. | 4,4'-DDD |
| 51. | 2,4'-DDT |
| 52. | Carfentrazone ethyl |
| 53. | Endosulfan sulfate |
| 54. | Fenhexamid |
| 55. | 4,4'-DDT |
| 56. | Propargite |
| 57. | Piperonyl butoxide |
| 58. | Iprodione |
| 59. | Bifenthrin |
| 60. | Dicofol |
| 61. | Fenpropathrin |
| 62. | Phosalone |
| 63. | Azinphos-methyl |
| 64. | cis-Permethrin |
| 65. | Coumaphos |
| 66. | trans-permethrin |
| 67. | Cypermethrin |
| 68. | Pyraclostrobin |
| 69. | Fluvalinate |
| 70. | Difenoconazole |
| 71. | Deltamethrin |
| 72. | Azoxystrobin |
GC_FF1241
| Column | Rxi-5Sil MS 30 m, 0.25 mm ID, 0.25 µm (cat.# 13623) |
| Rtx-200 1.3 m, 0.25 mm ID, 0.25 µm (cat.# 15124) | |
| Sample | Custom pesticide standard |
| Diluent: | Acetonitrile |
| Conc.: | 500 pg/µL |
| Injection | |
| Inj. Vol.: | 1.0 µL splitless (hold 1.0 min) |
| Liner: | Premium 4 mm single taper w/wool (cat.# 23303.5) |
| Inj. Temp.: | 250 °C |
| Oven | |
| Oven Temp.: | Rxi-5Sil MS: 90 °C (hold 1.0 min) to 310 °C at 5 °C/min (hold 2.0 min) Rtx-200: 95 °C (hold 1.0 min) to 315 °C at 5 °C/min (hold 2.0 min) |
| Carrier Gas | He, corrected constant flow (2 mL/min) |
| Modulation | |
| Modulator Temp. Offset: | +20 °C |
| Second Dimension Separation Time: | 3 sec |
| Hot Pulse Time: | 0.9 sec |
| Cool Time between Stages: | 0.6 sec |
| Detector | MS |
| Mode: | |
| Transfer Line Temp.: | 300 °C |
| Analyzer Type: | TOF |
| Source Temp.: | 225 °C |
| Electron Energy: | 70 eV |
| Mass Defect: | -20 mu/100 u |
| Ionization Mode: | EI |
| Acquisition Range: | 45 to 550 amu |
| Spectral Acquisition Rate: | 100 spectra/sec |
| Instrument | LECO Pegasus 4D GCxGC-TOFMS |
| Notes | Rtx-200 (cat.# 15124) is a 2 m column. A 1.3 m section was cut off and used as the second dimension column. |
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