Volatiles by EPA Method 8260 on Rxi-624Sil MS (30m, 0.25mm ID, 1.40µm)

PeakstR (min)
1.Dichlorodifluoromethane (CFC-12)2.198
2.Chloromethane2.459
3.Vinyl chloride2.659
4.Bromomethane3.226
5.Chloroethane3.434
6.Trichlorofluoromethane (CFC-11)3.876
7.Diethyl ether (ethyl ether)4.44
8.1,1-Dichloroethene4.909
9.1,1,2-Trichlorotrifluoroethane (CFC-113)4.998
10.Acetone5.029
11.Iodomethane5.195
12.Carbon disulfide5.323
13.Acetonitrile5.637
14.Allyl chloride5.715
15.Methyl acetate5.723
16.Methylene chloride5.981
17.tert-Butyl alcohol6.234
18.Acrylonitrile6.451
19.Methyl tert-butyl ether (MTBE)6.509
20.trans-1,2-Dichloroethene6.512
21.1,1-Dichloroethane7.315
22.Vinyl acetate7.359
23.Diisopropyl ether (DIPE)7.407
24.Chloroprene7.429
25.Ethyl tert-butyl ether (ETBE)7.97
26.2-Butanone (MEK)8.193
27.cis-1,2-Dichloroethene8.193
28.2,2-Dichloropropane8.193
29.Ethyl acetate8.265
30.Propionitrile8.276
31.Methyl acrylate8.318
32.Methacrylonitrile8.476
33.Bromochloromethane8.507
34.Tetrahydrofuran8.521
35.Chloroform8.651
36.1,1,1-Trichloroethane8.843
37.Dibromofluoromethane8.848
38.Carbon tetrachloride9.026
39.1,1-Dichloropropene9.037
40.1,2-Dichloroethane-d49.246
41.Benzene9.262
42.1,2-Dichloroethane9.334
43.Isopropyl acetate9.34
44.Isobutyl alcohol9.421
45.tert-Amyl methyl ether (TAME)9.421
46.Fluorobenzene9.598
47.Trichloroethene9.976
48.1,2-Dichloropropane10.243
49.Methyl methacrylate10.29
50.1,4-Dioxane (ND)10.299*
51.Dibromomethane10.326
52.Propyl acetate10.346
PeakstR (min)
53.2-Chloroethanol (ND)10.368*
54.Bromodichloromethane10.496
55.2-Nitropropane10.698
56.cis-1,3-Dichloropropene10.904
57.4-Methyl-2-pentanone (MIBK)11.026
58.Toluene-D811.148
59.Toluene11.21
60.trans-1,3-Dichloropropene11.407
61.Ethyl methacrylate11.435
62.1,1,2-Trichloroethane11.585
63.Tetrachloroethene11.662
64.1,3-Dichloropropane11.729
65.2-Hexanone11.749
66.Butyl acetate11.837
67.Dibromochloromethane11.921
68.1,2-Dibromoethane (EDB)12.035
69.Chlorobenzene-d512.412
70.Chlorobenzene12.44
71.Ethylbenzene12.507
72.1,1,1,2-Tetrachloroethane12.507
73.m-Xylene12.612
74.p-Xylene12.612
75.o-Xylene12.935
76.Styrene12.949
77.n-Amyl acetate13.018
78.Bromoform13.118
79.Isopropylbenzene (cumene)13.226
80.cis-1,4-Dichloro-2-butene13.268
81.4-Bromofluorobenzene13.385
82.1,1,2,2-Tetrachloroethane13.456
83.trans-1,4-Dichloro-2-butene13.496
84.Bromobenzene13.515
85.1,2,3-Trichloropropane13.526
86.n-Propylbenzene13.565
87.2-Chlorotoluene13.657
88.1,3,5-Trimethylbenzene13.699
89.4-Chlorotoluene13.751
90.tert-Butylbenzene13.965
91.Pentachloroethane14.007
92.1,2,4-Trimethylbenzene14.01
93.sec-Butylbenzene14.14
94.4-Isopropyltoluene (p-cymene)14.254
95.1,3-Dichlorobenzene14.263
96.1,4-Dichlorobenzene-D414.321
97.1,4-Dichlorobenzene14.34
98.n-Butylbenzene14.579
99.1,2-Dichlorobenzene14.635
100.1,2-Dibromo-3-chloropropane (DBCP)15.252
101.Nitrobenzene15.407
102.1,2,4-Trichlorobenzene15.935
103.Hexachloro-1,3-butadiene16.04
104.Naphthalene16.196
105.1,2,3-Trichlorobenzene16.396
* ND = not detected; retention time determined by wet needle injection
image
GC_EV1169
ColumnRxi-624Sil MS, 30 m, 0.25 mm ID, 1.40 µm (cat.# 13868)
Sample8260A surrogate mix (cat.# 30240)
8260A internal standard mix (cat.# 30241)
8260B MegaMix calibration mix (cat.# 30633)
VOA calibration mix #1 (ketones) (cat.# 30006)
8260B acetate mix (revised) (cat.# 30489)
California oxygenates mix (cat.# 30465)
502.2 calibration mix #1 (gases) (cat.# 30042)
Conc.: 25 ppb in RO water
Injectionpurge and trap split (split ratio 30:1)
Inj. Temp.:225 °C
Purge and Trap
Instrument:OI Analytical 4660
Trap Type:10 Trap
Purge: 11 min @ 20 °C
Desorb Preheat Temp.:180 °C
Desorb: 0.5 min @ 190 °C
Bake: 5 min @ 210 °C
Interface Connection:injection port
Oven
Oven Temp.:35 °C (hold 5 min) to 60 °C at 11 °C/min to 220 °C at 20 °C/min (hold 2 min)
Carrier GasHe, constant flow
Flow Rate:1.0 mL/min
DetectorMS
Mode:Scan
Transfer Line Temp.:230 °C
Analyzer Type:Quadrupole
Source Temp.:230 °C
Quad Temp.:150 °C
Electron Energy:70 eV
Solvent Delay Time:1.5 min
Tune Type:BFB
Ionization Mode:EI
Scan Range:36-260 amu
InstrumentAgilent 7890A GC & 5975C MSD
NotesOther Purge-and-Trap Conditions:
Sample Inlet: 40°C
Sample: 40°C
Water Management: Purge 110°C, Desorb 0°C, Bake, 240°C
AcknowledgementEclipse 4660 purge-and-trap courtesy of O.I. Analytical, College Station, TX.
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