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Volatiles US EPA Method 624 on Rtx-624

Volatiles US EPA Method 624 on Rtx-624

Peaks
1.Chloromethane
2.Vinyl chloride
3.Bromomethane
4.Chloroethane
5.Trichlorofluoromethane
6.1,1-Dichloroethene
7.Methylene Chloride
8.trans-1,2-Dichloroethene
9.1,1-Dichloroethane
10.Bromochloromethane
11.Chloroform
12.1,1,1-Trichloroethane
13.Pentafluorobenzene
14.Carbon Tetrachloride
15.Benzene
16.1,2-Dichloroethane
17.Fluorobenzene
18.Trichloroethene
Peaks
19.1,2-Dichloropropane
20.Bromodichloromethane
21.2-Chloroethyl vinyl ether
22.cis-1,3-Dichloropropene
23.Toluene
24.2-Bromo-1-chloropropane
25.1,1,2-Trichloroethane
26.Tetrachloroethene
27.Dibromochloromethane
28.trans-1,3-Dichloropropene
29.Chlorobenzene
30.Ethylbenzene
31.Bromoform
32.1,4-Dichlorobutane
33.4-Bromofluorobenzene
34.1,1,2,2-Tetrachloroethane
35.1,3-Dichlorobenzene
36.1,4-Dichlorobenzene
37.1,2-Dichlorobenzene
image
GC_EV00701
ColumnRtx-624, 40 m, 0.18 mm ID, 1.00 µm (cat.# 40925)
Sample624 Internal Standard Mix (cat.# 30023)
624 Surrogate Standard Mix (cat.# 30243)
Volatiles MegaMix, EPA Method 624 (cat.# 30497)
Conc.: compounds at 50 ppb (IS @ 40ppb) in 5mL of RO water
Injectionpurge and trap split (split ratio 40:1)
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 10 mL/min
Bake: 8 min @ 260 °C
Interface Connection:injection port
Transfer Line Tubing:Silcosteel transfer line, 1mm ID sleeve
Oven
Oven Temp.:50 °C (hold 4 min) to 100 °C at 12 °C/min to 230 °C at 27 °C/min (hold 2 min)
Carrier GasHe, constant flow
Flow Rate:1.1 mL/min
Dead Time:2.06 min @ 50 °C
DetectorAgilent 5971A GC/MS
Transfer Line Temp.:280 °C
Analyzer Type:Quadrupole
Tune Type:PFTBA/BFB
Ionization Mode:EI
Scan Range:35-260 amu
Notes(MCS bypassed using Silcosteel tubing)
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