EPA Air AnalysisMethod TO-15 (1 ppbV Standard)


Column: DB-5ms 123-5563 60 m x 0.32 mm, 1.00 µm


Carrier: Helium, 1.5 mL/min Oven: 35°C for 5 min 35-140°C at 6°C/min 140-220°C at 15°C/min 220°C for 3 min


Agilent wishes to thank Entech Instruments for providing this chromatogram.


1. Formaldehyde 2. Propene 3.


Sampler: Entech 7100 cryogenic sample preconcentrator Detector: GC/MS 6890/5973N Scan 29-180 amu 0-6 min 33-280 amu 6-30 min Electron Impact 70 eV


Quantitation Ion 30


4. Chloromethane 5.


6. Acetaldehyde 7. Vinyl chloride 8. 1,3-Butadiene 9. Bromomethane 10. Chloroethane 11. Bromoethene


Sample: 400 mL sample load, All compounds at 10 ppbV except Formaldehyde (50 ppbV), Acetaldehyde (20 ppbV), Propanol (20 ppbV), Acetone (30 ppbV), 2-Butanone (30 ppbV)


37 29 4, 5


Dichlorodifluoromethane Dichlorotetrafluoroethane


41 85 50 85 29 62 39 94 64


12. Trichlorofluoromethane 13. Acetone 14. Propanal


15. Isopropyl alcohol 16. 1,1-Dichloroethene


19. 3-Chloro-1-propene (Allyl chloride) 20. Carbon disulfide


21. trans-1,2-Dichloroethene


25. 2-Butanone (MEK) 26. n-Hexane


17 40 3 12 18, 19 13


6, 7 8


1, 2 9 10 11


14 15


16 20 21 23, 24 22 33 28 31 42


456789 10 Time (min)


53 62 6364 65 555657 51 47 48 50 52 46 49


15 16 17 18 19 20 21 22 23 24 25 26 27 28 Time (min)


54 59 58 60 61 67 66 68 11 12 13 14 71 25 26 27 30 32


34, 35 36


38 39 41 43 44, 45 31. Tetrahydrofuran


22. tert-Butyl methyl ether (MTBE) 23. 1,1-Dichloroethane 24. Vinyl acetate


27. cis-1,2-Dichloroethene 28. Ethyl acetate


32. 1,1,1-Trichloroethane 33. 1,2-Dichloroethane 34. Benzene


35. Carbon tetrachloride 36. Cyclohexane


41. 1,2-Dichloropropane 42. 1,4-Dioxane


40. Trichloroethene 37. 1,4-Difluorobenzene (IS)


38. 2,2,4-Trimethylpentane (Isooctane) 39. n-Heptane


44. 4-Methyl-2-pentanone (MIBK) 45. cis-1,3-Dichloropropene 46. trans-1,3-Dichloropropene 47. Toluene


43. Bromodichloromethane 69 70


50. Dibromochloromethane 51. Tetrachloroethene 52. 1,2-Dibromoethane 53. Chlorobenzene-d5 (IS) 54. Chlorobenzene 55. Ethylbenzene 56. m-Xylene 57. p-Xylene 58. Styrene 59. o-Xylene


48. 1,1,2-Trichloroethane 49. 2-Hexanone


61. 1,1,2,2-Tetrachloroethane 62. 4-Bromofluorobenzene 63. 4-Ethyltoluene


60. Bromoform


64. 1,3,5-Trimethylbenzene 65. 1,2,4-Trimethylbenzene 66. 1,3-Dichlorobenzene 67. Benzyl chloride


68. 1,4-Dichlorobenzene 69. 1,2-Dichlorobenzene 70. 1,2,4-Trichlorobenzene 71. Hexachlorobutadiene


29. Bromochloromethane (IS) 30. Chloroform


17. 1,1,2-Trichloro-1,2-2-trifluoroethane 101 18. Methylene chloride


106 101 58 29 45 61


49 76 76 96 73 63 43 72 57 96 43


128 83 42 97 62 78


117 56


130 63 88 83 43 75 75 91 97 43


114 57 41


129 166 107 117 112 91 91 91


173 83 95


104 91


105 105 105 146 91


146 146 180 225


GCEA002


Suggested Supplies


Septum: Advanced Green, 5183-4759 Liner: Direct, 1.5 mm ID, 18740-80200 Seal: Gold plated seal, 18740-20885


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