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PAMS 57 Component Mix on Rtx-1 (105 m)

GC_AR1160
PeakstR (min)
1.Ethylene7.91
2.Acetylene8.10
3.Ethane8.32
4.Propylene11.44
5.Propane11.76
6.Isobutane16.08
7.1-Butene18.01
8.n-Butane18.60
9.trans-2-Butene19.41
10.cis-2-Butene20.41
11.iso-Pentane23.79
12.1-Pentene24.80
13.n-Pentane25.53
14.Isoprene25.83
15.trans-2-Pentene26.05
16.cis-2-Pentene26.54
17.2,2-Dimethylbutane27.76
18.Cyclopentane29.50
19.2,3-Dimethylbutane29.60
20.2-Methylpentane29.86
PeakstR (min)
21.3-Methylpentane30.70
22.1-Hexene31.04
23.Bromochloromethane (IS)31.60
24.n-Hexane31.69
25.Methylcyclopentane33.30
26.2,4-Dimethylpentane33.41
27.Benzene34.67
28.Cyclohexane35.19
29.1,4-Difluorobenzene (IS)35.32
30.2-Methylhexane35.44
31.2,3-Dimethylpentane35.62
32.3-Methylhexane35.93
33.2,2,4-Trimethylpentane36.70
34.n-Heptane37.17
35.Methylcyclohexane38.52
36.2,3,4-Trimethylpentane39.88
37.Toluene40.22
38.2-Methylheptane40.49
39.3-Methylheptane40.89
40.n-Octane42.09
PeakstR (min)
41.Chlorobenzene-d5 (IS)43.79
42.Ethylbenzene44.57
43.m-Xylene44.89
44.p-Xylene44.93
45.Styrene45.62
46.o-Xylene45.83
47.n-Nonane46.14
48.4-Bromofluorobenzene*46.71
49.Isopropylbenzene46.96
50.n-Propylbenzene47.95
51.m-Ethyltoluene48.15
52.p-Ethyltoluene48.23
53.1,3,5-Trimethylbenzene48.38
54.o-Ethyltoluene48.77
55.n-Decane49.32
56.1,2,4-Trimethylbenzene49.21
57.1,2,3-Trimethylbenzene50.07
58.m-Diethylbenzene50.67
59.p-Diethylbenzene50.87
60.Undecane51.89
61.Dodecane54.02
*Tuning standard
ColumnRtx-1, 105 m, 0.25 mm ID, 1.00 µm (cat.# 10159)
with MXT-Union connector kit (cat.# 21386)
SampleOzone precursor mixture/PAMS (cat.# 34420)
TO-14A internal standard/tuning mix (cat.# 34408)
Diluent:Nitrogen
Conc.:10 ppbv 400 mL injection
InjectionDirect
Oven
Oven Temp.:-45 °C (hold 4 min) to 125 °C at 4.50 °C/min to 250 °C at 9.00 °C/min
Carrier GasHe, constant flow
Flow Rate:2.0 mL/min
Linear Velocity:26 cm/sec @ -45 °C
DetectorMS
Mode:Scan
Scan Program:
GroupStart Time
(min)
Scan Range
(amu)
Scan Rate
(scans/sec)
17.0026.00-30.005.21
210.0126.00-53.502.13
318.0139.00-176.001.34
Transfer Line Temp.:270 °C
Analyzer Type:Quadrupole
Source Type:Stainless Steel
Drawout Plate:6mm ID
Source Temp.:230 °C
Quad Temp.:150 °C
Electron Energy:70.0 eV
Solvent Delay Time:7.00 min
Tune Type:BFB
Ionization Mode:EI
PreconcentratorNutech 8900DS
  Trap 1 Settings
Type/Sorbent :Siltek­­-treated glass beads
Cooling temp:-180 °C
Preheat temp:5 °C
Preheat time:0 sec
Desorb temp:20 °C
Desorb flow:5 mL/min
Desorb time:120 sec
Bakeout temp:200 °C
Flush flow:120 mL/min
Flush time:60 sec
Sweep flow:120 mL/min
Sweep time:60 sec
  Trap 2 Settings
Type/Sorbent:Tenax GR
Cooling temp:-45 °C
Desorb temp:200 °C
Desorb time:0 sec
Bakeout temp:175 °C
Bakeout time:30 sec
  Cryofocuser
Cooling temp:-180 °C
Inject time:30 sec
  Internal Standard
Purge flow:100 mL/min
Purge time:6 sec
Vol.:100 mL
ISTD flow:100 mL/min
  Standard
Size:400 mL
Purge flow:100 mL/min
Purge time:6 sec
Sample flow:100 mL/min
InstrumentHP6890 GC & 5973 MSD
AcknowledgementNutech/EST Analytical