EPA Volatiles by GC/MS (Split Injector)


Column: DB-VRX 122-1564 60 m x 0.25 mm, 1.40 µm


Carrier: Helium at 30 cm/sec, measured at 45°C Oven: 45°C for 10 min 45-190°C at 12°/min 190°C for 2 min 190-225°C at 6°/min 225°C for 1 min


Sampler: Purge and Trap (O.I.A. 4560) Purge: Helium for 11 min at 40 mL/min Trap: Tenax/Silica Gel/Carbosieve Preheat: 175°C Desorb: 220°C for 0.6 min


Injection: Split, 110°C Split flow 30 mL/min


Detector: MSD, 235°C transfer line Full scan 35-260 amu (m/z 44 subtracted) 44


32 29, 30 10, 14 1 0 2 3 4 7 5 6 5 9 13 12 16 15 11 18, 22 2527 20 24 19 10


Column: DB-624 122-1364 60 m x 0.25 mm, 1.40 µm


Carrier: Helium at 30 cm/sec, measured at 45°C Oven: 45°C for 10 min 45-190°C at 12°/min 190°C for 2 min 190-225°C at 6°/min 225°C for 1 min


Sampler: Purge and Trap (O.I.A. 4560) Purge: Helium for 11 min at 40 mL/min Trap: Tenax/Silica Gel/Carbosieve Preheat: 175°C Desorb: 220°C for 0.6 min


Injection: Split, 110°C Split flow 30 mL/min


Detector: MSD, 235°C transfer line Full scan 35-260 amu (m/z 44 subtracted)


61,62


21 23


26 87 15 Time (min) 20 25 30 GCEV001 34 28 33 3637 31 42, 43


3839 40 41


48 5758 36 53


47, 454951 46


50 69 59


54 52 55


56 65 86 Suggested Supplies


Septum: Advanced Green, 5183-4759 Liner: Direct, 1.5 mm ID, 18740-80200 Seal: Gold plated seal kit, 5188-5367


61, 62 68, 63 60 64 70 71


66 67


72 73 7574


76 77


78


79 80 81


83


82 84


89 85 88 90 91 Suggested Supplies


Septum: Advanced Green, 5183-4759 Liner: Direct, 1.5 mm ID, 18740-80200 Seal: Gold plated seal kit, 5188-5367


IS - Internal Standard SS - Surrogate Standard Note: Some compounds not present in both chromatograms


63,64 70,71 33, 34 15,16 14 1 23 0 52 4 5 6 5 10


11 10 8, 9 7


12 13


48


26, 27 19, 20, 21, 22


18 24 17


25 23


29 36 35


43, 44


52,53 60 58 31, 32 30


38 40 41 39


45 42 46 47 15 20 Time (min) 25 30 50 49 51 54 55 56 86 87 35 GCEV002 Order online at www.agilent.com/chem/store 59


69 68


65 72 66 67 73


75 74


76


7879 8081 82 84


83 85 90 88 91 89


1. Dichlorodifluoromethane 2. Chloromethane 3. Vinyl chloride 4. Bromomethane 5. Chloroethane 6. Trichlorofluoromethane 7. Diethyl ether 8. 1,1-Dichloroethene 9. Acetone 10. Iodomethane 11. Carbon disulfide 12. Allyl chloride 13. Methylene chloride 14. Acrylonitrile 15. Methyl-tert-butyl ether 16. trans-1,2-Dichloroethene 17. Hexane 18. 1,1-Dichloroethane 19. 2-Butanone 20. cis-1,2-Dichloroethene 21. 2,2-Dichloropropane 22. Propionitrile 23. Methyl acrylate 24. Methacrylonitrile 25. Bromochloromethane 26. Tetrahydrofuran 27. Chloroform 28. Pentafluorobenzene (IS) 29. 1,1,1-Trichloroethane 30. 1-Chlorobutane 31. 1,1-Dichloropropene 32. Carbon tetrachloride 33. Benzene 34. 1,2-Dichloroethane 35. 2,2-Dimethylhexane 36. Fluorobenzene (IS) 37. 1,4-Difluorobenzene (IS) 38. Trichloroethene 39. 1,2-Dichloropropane 40. Methyl methacrylate 41. Dibromomethane 42. Bromodichloromethane 43. 2-Nitropropane 44. Chloroacetonitrile 45. cis-1,3-Dichloropropene 46. 4-Methyl-2-pentanone 47. 1,1-Dichloro-2-propanone 48. Toluene 49. trans-1,3-Dichloropropene 50. Ethyl methacrylate 51. 1,1,2-Trichloroethane 52. Tetrachloroethene 53. 1,3-Dichloropropane 54. 2-Hexanone 55. Dibromochloromethane 56. 1,2-Dibromoethane 57. 1-Chloro-3-fluorobenzene (IS) 58. Chlorobenzene 59. 1,1,1,2-Tetrachloroethane 60. Ethylbenzene 61. m-Xylene 62. p-Xylene 63. o-Xylene 64. Styrene 65. Bromoform 66. Isopropylbenzene 67. 4-Bromofluorobenzene (SS) 68. 1,1,2,2-Tetrachloroethane 69. Bromobenzene 70. 1,2,3-Trichloropropane 71. trans-1,4-Dichloro-2-butene 72. n-Propylbenzene 73. 2-Chlorotoluene 74. 1,3,5-Trimethylbenzene 75. 4-Chlorotoluene 76. tert-Butylbenzene 77. Pentachloroethane 78. 1,2,4-Trimethylbenzene 79. sec-Butylbenzene 80. 1,3-Dichlorobenzene 81. p-Isopropyltoluene


82. 1,4-Dichlorobenzene 83. n-Butylbenzene 84. 1,2-Dichlorobenzene 85. Hexachloroethane 86. 1,2-Dibromo-3-chloropropane 87. Nitrobenzene 88. 1,2,4-Trichlorobenzene 89. Hexachlorobutadiene 90. Naphthalene 91. 1,2,3-Trichlorobenzene


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