GC and GC/MS Applications Environmental-Volatiles
High Speed VOC EPA 8260 32. 2,2-Dichloropropane 75. Tetrachloroethene Column: DB-VRX 33. Ethyl acetate 76. 1,1,1,2-Tetrachloroethane Interface: Split injector at 150°C, 34. Ethyl-tert-butyl ether 77. 1-Chlorohexane 20 m x 0.18 mm id, 1.0 µm film 60:1 split ratio P/N: 121-1524 35. Methyl acrylate 78. Chlorobenzene Agilent 5973 MSD 36. Dibromofluoromethane IS 79. Ethylbenzene Carrier: Helium at 55 cm/sec (1.5 mL/min) Scan range: 35-260 amu Oven: 45°C for 3.0 minutes 37. Isobutanol 80. Bromoform Scan rate: 3.25 scans/sec 38. Dichloroethane-d4 IS 81. m-Xylene 45-190°C at 36°C/min Quad temperature: 150°C 190-225°C at 20°C/min 39. Pentafluorobenzene 82. p-Xylene Source temperature: 200°C 40. 1,2-Dichloroethane 83. trans-Dichlorobutene 225°C for 0.5 min Transfer line temp: 200°C Injector: Tekmar 3100 Purge and Trap 41. 1,1,1-Trichloroethane 84. 1,3-Dichloro-2-propanol 42. 1-Chlorobutane 85. Styrene Trap: Vocarb 3000 Sample Concentration Sample volume: 5 mL 43. Crotonaldehyde 86. 1,1,2,2-Tetrachloroethane • Halogentated and aromatic analytes at 40 ppb 44. 2-Chloroethanol 87. o-Xylene Purge: 11 minutes • Internal standards at 20 ppb Desorb preheat: 245°C 45. 1,1-Dichloropropene 88. 1,2,3-Trichlropropane • Polar analytes (i.e., ethers, alcohols and 46. 1-Butanol 89. cis-Dichlorobutene Desorb: 1 minute at 250°C ketones at 100-800 ppb) Bake: 10 minutes at 260°C 47. Carbon tetrachloride 90. 4-Bromofluorobenzene IS Line and valve temp: 100°C 48. Chloroacetonitrile 91. Isopropylbenzene 28,29 49. Benzene 92. Bromobenzene 50. tert-Amylmethyl ether 93. Propylbenzene 1. Dichlorodifluoromethane 51. Fluorobenzene IS 94. 2-Chlorotoluene 2. Chloromethane 52. 2-Pentanone 95. 4-Chlorotoluene 3. Hydroxypropionitrile Ideal for 5973 MSD 53. Dibromomethane 96. 1,3,5-Trimethylbenzene 4. Vinyl chloride 54. 1,2-Dichloropropane 97. Pentachloroethane 5. Bromomethane 55. Trichloroethene 98. tert-Butylbenzene 6. Chloroethane 56. Bromodichloromethane 99. 1,2,4-Trimethylbenzene 7. Ethanol 57. 2-Nitropropane 100. sec-Butylbenzene 8. Acetonitrile 58. 1,4-Dioxane 101. 1,3-Dichlorobenzene 9. Acrolein 59. Epichlorohydrin 102. Benzylchloride 10. Trichlorofluoromethane 60. Methyl methacrylate 103. 1,4-Dichlorobenzene-d4 IS 11. Isopropyl alcohol 61. cis-1,3-Dichloropropene 104. 1,4-Dichlorobenzene 12. Acetone 62. Propiolactone 105. Isopropyltoluene 13. Ethyl ether 8-10 63. Bromoacetone 106. 1,2-Dichlorobenzene 14. 1,1-Dichloroethene 64. Pyridine 107. Butylbenzene 15. tert-Butyl alcohol 65. trans-1,3-Dichloropropene 108. 1,2-Dibromo-3-chloropropane 16. Acrylonitrile 66. 1,1,2-Trichloroethane 109. Hexachloroethane 17. Methylene chloride 67. Toluene-d8 IS 110. Nitrobenzene 18. Allyl chloride 14,15 68. Toluene 111. 1,2,4-Trichlorobenzene 19. Allyl alcohol 17 22 69. 1,3-Dichloropropane 112. Naphthalene 20. 1-Propanol 16 70. Paraldehyde 113. Hexachlorobutadiene 21. Propargyl alcohol 18 49 71. Ethyl methacrylate 114. 1,2,3-Trichlorobenzene 22. trans-1,2-Dichloroethene 23 72. Dibromochloromethane 23. MTBE 55 73. 3-Chloropropionitrile 61 24. 1,1-Dichloroethane 74. 1,2-Dibromoethane 25. Propionitrile 5 54 2 26. 2-Butanone 24 13 32-34 41,42 27. Diisopropyl ether 1 35,36 45 56,57 28. cis-1,2-Dichloroethene 3,4 51 30 31 39,40 47 53 59,60 29. Methacrylonitrile 6 48 30. Bromochloromethane 25 7 11 12 21 46 31. Chloroform 27 37 62 38 43,44 52 19 20 50 26 58 GC and GC/MS
C797a 1.0 2.0 3.0 4.0 Time (min) 101,102 105 100 99 103,104 98
80-82 96,97 77,78
86,87 90,91 93 107 98 95 106 6.4 6.5 6.6 79 84,85 111 114 68 94 113 92 109 112 75
76 66 69,70 65 67 88 71 72 83 89 74 63, 110 108 64 73
5.0 6.0 7.0 8.0 C797b Time (min)
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