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40 mL of Electronic Cigarette Vapor Collected on a Thermal Desorption Tube and Analyzed on Rtx-VMS

PeakstR (min)Match QualityVaporBlank*Region
1.Nitrogen/oxygen0.685100xxRed
2.Carbon dioxide1.063100xxRed
3.Propene1.200100xRed
4.Formaldehyde1.227100xRed
5.Sulfur dioxide1.31390xRed
6.Chloromethane1.380100xRed
7.Water1.453100xxRed
8.Acetaldehyde1.672100xRed
9.Methanol1.715100xxRed
10.Unidentified1.885xRed
11.Ethanol2.270100xRed
12.Unidentified2.331xRed
13.Unidentified2.410xRed
14.Acrolein2.581100xRed
15.Propanal2.629100xRed
16.Methylene chloride2.770100xxRed
17.Acetone2.843100xRed
18.Unidentified2.892xRed
19.Hexane2.928100xRed
20.Acetonitrile3.160100xxRed
21.Unidentified3.544xOrange
22.Unidentified3.842xOrange
23.Trimethylsilanol3.928100xOrange
24.Unidentified4.092xOrange
25.Unidentified4.159xOrange
26.Unidentified4.245xOrange
27.Unidentified4.354xOrange
28.Benzene4.452100xxOrange
29.Unidentified4.519xOrange
30.Acetic acid5.05586xOrange
31.Unidentified5.141xOrange
32.Unidentified5.647xOrange
33.Unidentified5.756xOrange
34.1-Hydroxy-2-propanone6.07380xOrange
35.Unidentified6.165xOrange
36.Unidentified6.220xOrange
37.Toluene6.280100xxOrange
38.Hexamethylcyclotrisiloxane6.50691xOrange
39.Unidentified7.231xOrange
40.Unidentified7.530xOrange
41.Propylene glycol7.737100xGreen
42.m-Xylene8.048100xGreen
43.p-Xylene8.048100xGreen
44.o-Xylene8.530100xGreen
45.Styrene8.597100xGreen
46.Unidentified9.158xGreen
47.Octamethylcyclotetrasiloxane9.21891xGreen
48.4-Methyl-1-(1-methylethyl)cyclohexene9.37195xGreen
49.Unidentified9.639xGreen
50.Unidentified9.852xGreen
51.Unidentified9.932xGreen
52.Unidentified10.121xGreen
53.Unidentified10.219xGreen
54.Trimethylpyrazine10.46880xGreen
55.Benzaldehyde10.657100xGreen
56.Unidentified10.858xGreen
57.Unidentified11.120xGreen
58.Unidentified11.187xGreen
59.Acetylpyrazine11.54193xGreen
60.Decamethylcyclopentasiloxane11.62091xGreen
61.Phenol11.87094xGreen
62.Unidentified12.272xGreen
63.1,1'-Oxybis-2-propanol12.33390xGreen
64.Glycerin12.748100xBlue
65.Unidentified13.327xBlue
66.Dodecamethylcyclohexasiloxane13.97994xBlue
67.Nicotine15.862100xBlue
68.Tetradecamethylhexasiloxane16.08291xBlue
69.Unidentified16.326xBlue
70.Unidentified16.460xBlue
71.Myosmine17.21694xBlue
72.Nicotyrine17.80790xBlue
73.Unidentified18.002xBlue
74.2,3'-Dipyridyl18.61894xBlue
75.Unidentified18.721xBlue
76.Unidentified19.294xBlue
77.Unidentified19.611xBlue
78.Unidentified20.093xBlue
79.Unidentified20.190xBlue
80.Unidentified20.269xBlue
81.Unidentified20.501xBlue
82.Unidentified20.855xBlue
*The concentrations of these compounds in e-cigarette vapor were too close to blank and/or laboratory air concentrations to definitively state they were emitted from the e-cigarettes.
image
GC_AR1161
ColumnRtx-VMS, 30 m, 0.25 mm ID, 1.40 µm (cat.# 19915)
Sample
Conc.: One 40 mL puff of electronic cigarette vapor drawn via a gas-tight syringe to replicate vaping
InjectionDirect
Oven
Oven Temp.:35 °C (hold 1 min) to 250 °C at 11 °C/min (hold 4 min)
Carrier GasHe, constant flow
Flow Rate:2.0 mL/min @ 35 °C
DetectorMS
Mode:Scan
Scan Program:
GroupStart Time
(min)
Scan Range
(amu)
Scan Rate
(scans/sec)
1015-5505.2
Transfer Line Temp.:250 °C
Analyzer Type:Quadrupole
Source Type:Extractor
Extractor Lens:6mm ID
Source Temp.:230 °C
Quad Temp.:150 °C
Electron Energy:70 eV
Tune Type:BFB
Ionization Mode:EI
PreconcentratorMarkes UNITY™
InstrumentAgilent 7890B GC & 5977A MSD
AcknowledgementMarkes
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