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EPA Method 524.2, Revision 4 Rtx-VMS

GC_EV00430
PeaksConc. (ppb)
1.Dichlorodifluoromethane
2.Chloromethane
3.Vinyl chloride
4.Bromomethane
5.Chloroethane
6.Trichlorofluoromethane
7.Diethyl ether
8.1,1-Dichloroethene
9.Carbon disulfide40
10.Iodomethane40
11.Allyl chloride
12.Methylene Chloride
13.Acetone
14.trans-1,2-Dichloroethene
15.Methyl tert-butyl ether
16.1,1-Dichloroethane
17.Acrylonitrile
18.cis-1,2-Dichloroethene
19.2,2-Dichloropropane
20.Bromochloromethane
21.Chloroform
22.Methyl acrylate
23.Carbon Tetrachloride
24.Tetrahydrofuran40
25.1,1,1-Trichloroethane
26.2-Butanone
27.1,1-Dichloropropene
28.1-Chlorobutane
PeaksConc. (ppb)
29.Benzene
30.Propionitrile
31.1,2-Dichloroethane
32.Fluorobenzene
33.Trichloroethene
34.Dibromomethane
35.1,2-Dichloropropane
36.Bromodichloromethane
37.Methyl methacrylate
38.cis-1,3-Dichloropropene
39.Toluene
40.Chloroacetonitrile
41.2-Nitropropane*
42.1,1-Dichloropropanone*
43.4-Methyl-2-pentanone
44.Tetrachloroethene
45.trans-1,3-Dichloropropene
46.Ethyl methacrylate
47.1,1,2-Trichloroethane
48.Dibromochloromethane
49.1,3-Dichloropropane
50.1,2-Dibromoethane
51.2-Hexanone
52.Ethylbenzene
53.Chlorobenzene
54.1,1,1,2-Tetrachloroethane
55.m-Xylene
56.p-Xylene
PeaksConc. (ppb)
57.o-Xylene
58.Styrene
59.Bromoform
60.Isopropylbenzene
61.4-Bromofluorobenzene
62.n-Propylbenzene
63.Bromobenzene
64.1,1,2,2-Tetrachloroethane
65.1,3,5-Trimethylbenzene
66.2-Chlorotoluene
67.1,2,3-Trichloropropane
68.trans-1,4-Dichloro-2-butene
69.4-Chlorotoluene
70.tert-Butylbenzene
71.1,2,4-Trimethylbenzene
72.Pentachloroethane
73.sec-Butylbenzene
74.p-Isopropyltoluene
75.1,3-Dichlorobenzene
76.1,4-Dichlorobenzene
77.n-Butylbenzene
78.Hexachloroethane
79.1,2-Dichlorobenzene-D4
80.1,2-Dichlorobenzene
81.1,2-Dibromo-3-Chloropropane
82.Nitrobenzene
83.Hexachlorobutadiene
84.1,2,4-Trichlorobenzene
85.Naphthalene
86.1,2,3-Trichlorobenzene
*These peaks (41 and 42) share a quantitation ion (43)
ColumnRtx-VMS, 30 m, 0.25 mm ID, 1.40 µm (cat.# 19915)
Sample502.2 Calibration Mix #1 (gases) (cat.# 30042)
502.2 CAL2000 MegaMix Mixture (cat.# 30431)
524 Calibration Mix #7 Kit (cat.# 30202)
524 Calibration Mix #8 (cat.# 30203)
524 Internal Standard/Surrogate Mix (cat.# 30201)
Conc.: 20ppb in 5mL of RO water (unless otherwise noted); ketones at 40ppb.
Injectionpurge and trap split (split ratio 10:1)
Purge and Trap
Instrument:Tekmar LSC-3000 Purge and Trap
Trap Type:Vocarb 3000
Purge: 11 min, flow 40 mL/min
Dry Purge: 1 min, flow 40 mL/min
Desorb Preheat Temp.:245 °C
Desorb: 2 min @ 250 °C
Bake: 8 min @ 260 °C
Transfer Line Tubing:5m, 0.32mm ID Siltek Guard Column(cat.# 10027)
Oven
Oven Temp.:45 °C (hold 2 min) to 85 °C at 14 °C/min to 210 °C at 40 °C/min (hold 4 min)
Carrier GasHe, constant flow
Flow Rate:1.3 mL/min
DetectorMS
Mode:Scan
Scan Range:35-300 amu
InstrumentHP6890 GC & 5973 MSD
NotesAdjust dichlorodifluoromethane to a retention time of 2.29 min. @ 45°
Dry purge: MCS bypassed