Retention Time
Component Name
Rtx-502.2 Rtx-1 Rtx-624
dichlorodifluoromethane
4.173 4.24 4.255
C3
4.181 4.241 4.211
chloromethane
4.838 4.513 4.857
C4
5.136 5.319 6.321
vinyl chloride
5.159 4.872 5.243
ethylene oxide
6.289 5.467 6.389
bromomethane
6.527 5.604 6.412
chloroethane
6.812 5.938 6.798
ethanol
7.109 6.261 9.056
C5
7.692 8.133 8.069
trichlorofluoromethane
7.715 7.426 7.672
diethyl ether
8.857 8.232 8.977
1,1,2-trichloro-
1,2,2-trifluoroethane
9.142 9.745 10.044
acrolein
9.285 6.831 9.817
acetone
9.558 7.042 10.6
1,1-dichloroethene
10.117 8.74 9.953
tert
-butyl alcohol
10.516 8.864 13.546
acetonitrile
10.661 6.571 12.909
iodomethane
11.311 8.567 10.634
methyl iodide
11.311 8.567 10.634
allyl chloride
11.717 9.323 11.9
n
-propylamine
11.815 9.36 11.69
carbon disulfide
12.069 9.658 10.747
dichloromethane
12.169 9.001 13.034
methylene chloride
12.169 9.001 13.034
allyl alcohol
12.659 10.215 16.115
methyl
tert
-butyl ether
12.785 12.074 13.734
acrylonitrile
13.429 7.947 14.158
trans
-1,2-dichloroethene 13.438 11.346 13.725
C6
13.828 14.557 14.668
propargyl alcohol
14.458 11.32 18.532
di-isopropyl ether
14.874 14.602 15.745
1,1-dichloroethane
15.151 11.849 15.616
vinyl acetate
15.256 12.283 15.883
2-butanone
16.82 12.834 17.766
methyl ethyl ketone
16.82 12.834 17.766
propionitrile
17.053 10.733 18.167
2,2-dichloropropane
17.337 14.659 17.506
cis
-1,2-dichloroethene
17.478 13.924 17.628
methacrylonitrile
17.837 12.732 18.505
methylacrylate
17.947 14.54 18.351
isobutyl alcohol
18.015 15.723 20.048
chloroform
18.104 14.659 18.625
pentafluorobenzene
18.628 16.371 19.273
bromochloromethane
18.667 14.289 18.355
tetrahydrofuran
18.777 15.554 18.341
dibromofluoromethane
18.893 14.966 19.086
1,1,1-trichloroethane
19.575 17.042 18.972
cyclohexane
19.619 18.779 16.854
1-chlorobutane
19.724 17.221 19.314
Retention Time
Component Name
Rtx-502.2 Rtx-1 Rtx-624
1,1-dichloropropene
20.163 17.808 19.448
carbon tetrachloride
20.502 18.493 19.333
1,2-dichloroethane-d4
20.726 16.133 20.04
benzene-d6
20.91 17.998 19.888
C7
20.935 21.532 20.582
1,2-dichloroethane
21.047 16.411 20.263
benzene
21.097 18.124 19.999
fluorobenzene
21.897 18.917 20.802
2-chloroethanol
21.951 17.171 23.115
trichloroacetonitrile
22.125 33.558 30.181
1,4-difluorobenzene
22.209 19.061 21.179
trichloroethene
23.326 20.674 21.713
trifluorotoluene
23.607 21.311 22.527
1,2-dichloropropane
23.924 20.036 22.378
methyl methacrylate
24.233 21.258 22.632
chloroacetonitrile
24.239 17.035 23.993
bromodichloromethane
24.743 20.545 23.045
1,4-dioxane
24.808 20.645 22.644
dibromomethane
24.881 19.975 22.668
2-nitropropane
24.999 19.356 23.762
2-chloroethyl vinyl ether
25.888 22.108 23.796
dichloroacetonitrile
25.894 19.998 25.478
4-methyl-2-pentanone (MIBK) 26.001 22.887 24.458
epichlorohydrin
26.109 20.907 23.971
1,1-dichloropropanone
26.444 22.124 25.469
cis
-1,3-dichloropropene
26.674 22.744 24.104
C8
27.186 27.642 24.868
toluene-d8
27.502 24.835 24.612
pyridine
27.525 22.8 24.598
toluene
27.78 25.081 24.768
trans
-1,3-dichloropropene 28.428 24.014 25.417
ethyl methacrylate
28.455 25.852 25.489
1,1,2-trichloroethane
28.925 24.384 25.829
2-bromo-1-chloropropane 28.965 25.018 25.569
2-hexanone
29.03 25.778 26.326
1,3-dichloropropane
29.826 25.124 26.205
tetrachloroethene
30.036 27.8 25.928
dibromochloromethane
30.685 26.024 26.639
2-picoline
31.242 27.462 26.977
1,2-dibromoethane (EDB)
31.375 26.613 26.924
1-chlorohexane
32.066 29.717 27.831
bromochloroacetonitrile
32.079 25.757 28.837
C9
32.546 32.893 28.243
1,1,1-trichloro-2-propanane 32.633 28.967 28.104
chlorobenzene-d5
32.749 29.372 27.887
ethylbenzene-d10
32.756 30.191 27.934
chlorobenzene
32.864 29.473 27.949
ethylbenzene-d5
32.976 30.378 28.089
3-chloropropionitrile
33.001 24.824 29.176
1,1,1,2-tetrachloroethane 33.03 29.429 28.133
ethylbenzene
33.087 30.476 28.118
Retention Time
Component Name
Rtx-502.2 Rtx-1 Rtx-624
m
-xylene
33.351 30.898 28.37
p
-xylene
33.354 30.961 28.358
1-chloro-2-fluorobenzene 33.68 30.232 28.605
malononitrile
34.623 26.078 31.796
o
-xylene
34.877 32.149 29.238
styrene
34.975 31.843 29.294
1,3-dichloro-2-propanol
36.032 31.018 31.41
bromoform
36.123 30.983 29.746
isopropylbenzene
36.139 33.718 30.014
cis
-1,4-dichloro-2-butene 36.312 31.594 30.302
1,4-dichlorobutane
36.471 31.864 30.377
1,1,2,2-tetrachloroethane 36.735 32.053 30.779
4-bromofluorobenzene
37.004 33.318 30.426
1,2,3-trichloropropane
37.233 32.402 30.902
C10
37.305 37.539 31.095
trans
-1,4-dichloro-2-butene 37.516 32.626 30.929
n
-propylbenzene
37.566 35.151 30.895
bromobenzene
37.652 33.875 30.772
dibromoacetonitrile
37.812 30.956 31.86
1,3,5-trimethylbenzene
38.133 35.817 31.268
2-chlorotoluene
38.166 34.986 31.145
4-chlorotoluene
38.33 35.214 31.4
tert
-butylbenzene
39.393 37.008 31.959
1,2,4-trimethylbenzene
39.521 37.033 32.089
pentachloroethane
39.576 35.98 32.088
thiophenol
39.606 35.186 31.919
sec
-butylbenzene
40.151 37.886 32.428
p
-isopropyltoluene
40.657 38.413 32.731
1,3-dichlorobenzene
40.938 37.404 32.765
1,4-dichlorobenzene-d4 41.228 37.544 32.92
1,4-dichlorobenzene
41.317 37.624 32.972
C11
41.585 41.76 33.638
benzyl chloride
41.739 37.378 33.279
n
-butylbenzene
42.12 39.764 33.612
bis(2-chloroisopropyl)ether 42.498 39.009 34.229
1,2-dichlorobenzene-d4 42.536 38.589 33.74
1,2-dichlorobenzene
42.62 38.685 33.8
hexachloroethane
43.898 40.901 34.244
3-bromochlorobenzene
45.335 41.342 35.231
1,2-dibromo-3-chloropropane 45.501 40.095 35.485
4-bromochlorobenzene
45.567 41.476 35.377
C12
45.586 45.659 35.96
nitrobenzene
45.742 40.282 35.992
2-bromochlorobenzene
46.885 42.47 36.162
bis(2-chloroethoxy)methane 47.514 42.935 36.98
1,2,4-trichlorobenzene
48.643 44.704 37.165
hexachlorobutadiene
49.219 46.558 37.418
C13
49.276 49.295 38.078
naphthalene
49.544 45.073 37.729
1,2,3-trichlorobenzene
50.481 46.076 38.23
C14
52.771 52.704 40.173
Table VIII
Volatile organic compounds: retention time indexes
Data collected using 105m, 0.53mm ID, 3.0µmRtx
®
-502.2, Rtx
®
-1, andRtx
®
-624 columns.
Oven temp.: Rtx
®
-502.2: 35°C (hold 10min.) to 220°C@ 4°C/min. (hold 2min.), Rtx
®
-1: 35°C (hold 10min.) to 220°C@ 4°C/min. (hold 2min.),
Rtx
®
-624: 35°C (hold 12min.) to 220°C@ 7°C/min.; Carrier gas: helium; Regulation: constant flow; Flow rate: 10.0mL/min.
56
