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Volatile Organics by U.S. EPA Method 524.2 Revision IV on Rtx-VMS

GC_EV00718
Peaks
1.Dichlorodifluoromethane
2.Chloromethane
3.Vinyl chloride
4.Bromomethane
5.Chloroethane
6.Trichlorofluoromethane
7.Diethyl ether
8.1,1-Dichloroethene
9.Carbon disulfide
10.Iodomethane
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.Tetrahydrofuran
25.1,1,1-Trichloroethane
26.2-Butanone
27.1,1-Dichloropropene
28.1-Chlorobutane
29.Propionitrile
Peaks
30.Methacrylonitrile
31.Benzene
32.1,2-Dichloroethane
33.Fluorobenzene
34.Trichloroethene
35.Dibromomethane
36.1,2-Dichloropropane
37.Bromodichloromethane
38.Methyl methacrylate
39.cis-1,3-Dichloropropene
40.Toluene
41.Chloroacetonitrile
42.2-Nitropropane
43.1,1-Dichloropropanone
44.4-Methyl-2-pentanone
45.Tetrachloroethene
46.trans-1,3-Dichloropropene
47.1,1,2-Trichloroethane
48.Ethyl methacrylate
49.Dibromochloromethane
50.1,3-Dichloropropane
51.1,2-Dibromoethane
52.2-Hexanone
53.Chlorobenzene
54.Ethylbenzene
55.1,1,1,2-Tetrachloroethane
56.m-Xylene
57.p-Xylene
58.o-Xylene
Peaks
59.Styrene
60.Bromoform
61.Isopropylbenzene
62.4-Bromofluorobenzene
63.Bromobenzene
64.n-Propylbenzene
65.1,1,2,2-Tetrachloroethane
66.2-Chlorotoluene
67.1,2,3-Trichloropropane
68.1,3,5-Trimethylbenzene
69.trans-1,4-Dichloro-2-butene
70.4-Chlorotoluene
71.tert-Butylbenzene
72.Pentachloroethane
73.1,2,4-Trimethylbenzene
74.sec-Butylbenzene
75.p-Isopropyltoluene
76.1,3-Dichlorobenzene
77.1,4-Dichlorobenzene
78.n-Butylbenzene
79.Hexachloroethane
80.1,2-Dichlorobenzene-D4
81.1,2-Dichlorobenzene
82.1,2-Dibromo-3-Chloropropane
83.Nitrobenzene
84.Hexachlorobutadiene
85.1,2,4-Trichlorobenzene
86.Naphthalene
87.1,2,3-Trichlorobenzene
* Peaks 42 & 43 share an ion (43)
ColumnRtx-VMS, 30 m, 0.25 mm ID, 1.4 µm (cat.# 19915)
Sample502.2 Calibration mix #1 (gases) (cat.# 30042)
Drinking water VOA MegaMix, 524.2 rev. 4.1 (cat.# 30601)
524 Internal standard/surrogate mix (cat.# 30201)
Ketones mix, 524.2 rev. 4.1 (cat.# 30602)
Diluent:RO water
Conc.: Compounds at 20 ppb each in 5 mL RO water (ketones at 50 ppb; internal standards at 40 ppb)
Injectionpurge and trap split (split ratio 30:1)
Liner:1 mm split (cat.# 20972)
Inj. Temp.:250 °C
Purge and Trap
Instrument:Tekmar LSC-3100 purge and trap
Trap Type:Vocarb 3000 (type K)
Purge: 11 min @ ambient, flow 40 ml/min
Dry Purge: 1 min, flow 40 ml/min
Desorb Preheat Temp:245 °C
Desorb: 2 min @ 250 °C, flow 33 ml/min
Bake: 8 min @ 260 °C
Interface Connection:injection port
Transfer Line Tubing:Silcosteel transfer line
Oven
Oven Temp.:40 °C (hold 2 min) to 85 °C at 14 °C/min (hold 2 min) to 220 °C at 30 °C/min (hold 4 min)
Carrier GasHe, constant flow
Flow Rate:1.1 mL/min
Dead Time:1.48 min @ 40 °C
DetectorMS
Mode:Scan
Transfer Line Temp.:280 °C
Tune Type:PFTBA/BFB
Ionization Mode:EI
Scan Range:35-300 amu
NotesDry purge: MCS bypassed using Silcosteel tubing