Volatile Organics by EPA 8260B on Rtx-VMS

GC_EV00428

	Peaks
1.	Dichlorodifluoromethane
2.	Chloromethane
3.	Vinyl chloride
4.	Bromomethane
5.	Chloroethane
6.	Trichlorofluoromethane
7.	Ethanol (2,500 ppb)
8.	1,1-Dichloroethene
9.	Carbon disulfide (40 ppb)
10.	Allyl chloride
11.	Methylene chloride
12.	Acetone
13.	trans-1,2-Dichloroethene
14.	Methyl tert-butyl ether
15.	tert-Butyl alcohol (100 ppb)
16.	Diisopropyl ether
17.	1,1-Dichloroethane
18.	Acrylonitrile
19.	Vinyl acetate
20.	Allyl alcohol (250 ppb)
21.	Ethyl tert-butyl ether
22.	cis-1,2-Dichloroethene
23.	2,2-Dichloropropane
24.	Bromochloromethane
25.	Chloroform
26.	Ethyl acetate
27.	Carbon tetrachloride
28.	Methyl acrylate
29.	Propargyl alcohol (500 ppb)
30.	Dibromofluoromethane (SMC)
31.	Tetrahydrofuran
32.	1,1,1-Trichloroethane

	Peaks
33.	2-Butanone
34.	1,1-Dichloropropene
35.	Benzene
36.	Pentafluorobenzene (IS)
37.	tert-Amyl Methyl ether
38.	1,2-Dichloroethane
39.	Isobutyl alcohol (500 ppb)
40.	Isopropyl acetate
41.	Trichloroethene
42.	1,4-Difluorobenzene (SMC)
43.	Dibromomethane
44.	1,2-Dichloropropane
45.	Bromodichloromethane
46.	Methyl methacrylate
47.	n-Propyl acetate
48.	2-Chloroethanol (2,500 ppb)
49.	cis-1,3-Dichloropropene
50.	Toluene-d8 (SMC)
51.	Toluene
52.	Pyridine (250 ppb)
53.	Tetrachloroethene
54.	4-Methyl-2-pentanone
55.	trans-1,3-Dichloropropene
56.	1,1,2-Trichloroethane
57.	Ethyl methacrylate
58.	Dibromochloromethane
59.	1,3-Dichloropropane
60.	1,2-Dibromoethane
61.	n-Butyl acetate
62.	2-Hexanone
63.	2-Picoline (250 ppb)
64.	Chlorobenzene-d5 (IS)

	Peaks
65.	Chlorobenzene
66.	Ethylbenzene
67.	1,1,1,2-Tetrachloroethane
68.	m-Xylene
69.	p-Xylene
70.	o-Xylene
71.	Styrene
72.	Bromoform
73.	Isopropylbenzene
74.	4-Bromofluorobenzene (SMC)
75.	Bromobenzene
76.	n-Propylbenzene
77.	1,1,2,2-Tetrachloroethane
78.	2-Chlorotoluene
79.	1,3,5-Trimethylbenzene
80.	1,2,3-Trichloropropane
81.	4-Chlorotoluene
82.	tert-Butylbenzene
83.	Pentachloroethane
84.	1,2,4-Trimethylbenzene
85.	sec-Butylbenzene
86.	p-Isopropyltoluene
87.	1,3-Dichlorobenzene
88.	1,4-Dichlorobenzene-d4 (IS)
89.	1,4-Dichlorobenzene
90.	n-Butylbenzene
91.	1,2-Dichlorobenzene
92.	1,2-Dibromo-3-Chloropropane
93.	Nitrobenzene (250 ppb)
94.	Hexachlorobutadiene
95.	1,2,4-Trichlorobenzene
96.	Naphthalene
97.	1,2,3-Trichlorobenzene

Standard/Sample
Column	Rtx-VMS, 20 m, 0.18 mm ID, 1.00 µm (cat.# 49914)
Diluent:	Water
Conc.:	10 ppb in 5 mL RO water (unless noted); ketones 2.5X
Injection	purge and trap split (split ratio 40:1)
Liner:	1 mm split (cat.# 20973)
Inj. Temp.:	220 °C
Purge and Trap
Instrument:	Tekmar LCS 3100
Trap Type:	Vocarb 3000
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 40 mL/min
Bake:	8 min @ 260 °C
Interface Connection:	injection port
Transfer Line Tubing:	Silcosteel-treated 0.53 mm ID tubing (cat.# 20595)
Transfer Line Temp.:	120 °C
Oven
Oven Temp.:	50 °C (hold 4 min) to 100 °C at 18 °C/min (hold 0 min) to 230 °C at 40 °C/min (hold 3 min)
Carrier Gas	He, constant flow
Flow Rate:	1.0 mL/min

Detector	MS
Mode:	Scan
Transfer Line Temp.:	280 °C
Analyzer Type:	Quadrupole
Tune Type:	BFB
Ionization Mode:	EI
Scan Range:	35-300 amu
Instrument	HP6890 GC & 5973 MSD
Notes	For proper flows, adjust retention time of dichlorodifluoromethane to a retention time of 1.03 minutes @ 50 °C

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