Benzene, 4-ethyl-1,2-dimethyl-

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Normal alkane RI, non-polar column, custom temperature program

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Column type CapillaryCapillaryCapillaryCapillaryCapillary
Active phase HP-5 MSPolydimethyl siloxane with 5 % Ph groupsPolydimethyl siloxane with 5 % Ph groupsHP-5HP-5
Column length (m) 30.  30.30.
Carrier gas Helium    
Substrate      
Column diameter (mm) 0.25  0.250.25
Phase thickness (μm) 0.25  0.250.25
Program not specifiednot specifiednot specified40 0C (2 min) 5 0C/min -> 80 0C 7 oC/min -> 160 0C 9 0C/min -> 200 0C 20 0C/min -> 280 0C (10 min)not specified
I 1088.1089.1093.1078.1085.
ReferenceKotowska, Zalikowski, et al., 2012Robinson, Adams, et al., 2012Robinson, Adams, et al., 2012Zhao, Li, et al., 2008Zhao, Li, et al., 2008
Comment MSDC-RI MSDC-RI MSDC-RI MSDC-RI MSDC-RI
Column type CapillaryCapillaryCapillaryCapillaryCapillary
Active phase HP-5MSPolymethylsiloxane, (PMS-20000)Methyl SiliconeHP-5SE-30
Column length (m) 30.  50. 
Carrier gas    He 
Substrate      
Column diameter (mm) 0.25  0.32 
Phase thickness (μm) 0.25  0.52 
Program 40C(3min) => 4C/min => 75C => 8C/min => 250Cnot specifiednot specified35 0C 10 0C/min -> 200 0C (20 min) 5 0C/min -> 230 0C (50 min)not specified
I 1083.1066.1075.1095.1066.
ReferenceVichi, Pizzale, et al., 2005Cornwell and Cordano, 2003Spieksma, 1999Timón, Ventanas, et al., 1998Xiuhua, Zhang, et al., 1996
Comment MSDC-RI MSDC-RI MSDC-RI MSDC-RI MSDC-RI
Column type CapillaryCapillaryCapillaryCapillaryCapillary
Active phase SE-30OV-101OV-1OV-1OV-1
Column length (m)  52.60.60.60.
Carrier gas  H2   
Substrate      
Column diameter (mm)  0.250.320.320.32
Phase thickness (μm)  0.38   
Program not specified70 - 160 C at 1.5 deg/min; 160 - 280 C at 15 deg/min 15 min at 280 C1) 1st 30m column temp ramp 4C/min 60-120C 2)2nd 30m column isothermal 100C1) 1st 30m column temp ramp 4C/min 60-120C. 2) 2nd 30m column isothermal 120C.1) 1st 30m column temp ramp 6C/min 60-120C. 2) 2nd 30m column isothermal 120C.
I 1073.1074.1075.81081.61078.1
ReferenceXiuhua, Zhang, et al., 1996Matisová, Juranyiová, et al., 1991Engewald and Maurer, 1990Engewald and Maurer, 1990Engewald and Maurer, 1990
Comment MSDC-RI MSDC-RI MSDC-RI MSDC-RI MSDC-RI
Column type CapillaryCapillaryCapillary
Active phase OV-1OV-1, SE-30, Methyl silicone, SP-2100, OV-101, DB-1, etc.OV-1, SE-30, Methyl silicone, SP-2100, OV-101, DB-1, etc.
Column length (m) 60.50.50.
Carrier gas  HydrogenHydrogen
Substrate    
Column diameter (mm) 0.320.320.32
Phase thickness (μm)    
Program 1)1st 30m column temp ramp 3C/min 60-120 2)2nd 30m column isothermal 120Cnot specifiednot specified
I 1080.21068.1070.
ReferenceEngewald and Maurer, 1990Waggott and Davies, 1984Waggott and Davies, 1984
Comment MSDC-RI MSDC-RI MSDC-RI

References

Go To: Top, Normal alkane RI, non-polar column, custom temperature program, Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Kotowska, Zalikowski, et al., 2012
Kotowska, U.; Zalikowski, M.; Isidorov, V.A., HS-SPME/GC-MS analysis of volatile and semi-volatile organic compounds emitted from municipal sewage sludge, Environ. Monit. Asses., 2012, 184, 5, 2893-2907, https://doi.org/10.1007/s10661-011-2158-8 . [all data]

Robinson, Adams, et al., 2012
Robinson, A.L.; Adams, D.O.; Boss, P.K.; Heymann, H.; Solomon, P.S.; Trengove, R.D., Influence of geographic origine on the sensory characteristics and wine composition of Vitus viniferas cv. Cabernet Sauvignon wines from Australia (Supplemental data), Am. J. Enol. Vitic., 2012, 64, 4, 467-476, https://doi.org/10.5344/ajev.2012.12023 . [all data]

Zhao, Li, et al., 2008
Zhao, Y.; Li, J.; Xu, Y.; Duan, H.; Fan, W.; Zhao, G., EXtraction, preparation and identification of volatile compounds in Changyu XO brandy, Chinese J. Chromatogr., 2008, 26, 2, 212-222, https://doi.org/10.1016/S1872-2059(08)60014-0 . [all data]

Vichi, Pizzale, et al., 2005
Vichi, S.; Pizzale, L.; Conte, L.S.; Buxaderas, S.; L´opez-Tamames, E., Simultaneous determination of volatile and semi-volatile aromatic hydrocarbons in virgin olive oil by headspace solid-phase microextraction coupled to gas chromatography/mass spectrometry, J. Chromatogr. A, 2005, 1090, 1-2, 146-154, https://doi.org/10.1016/j.chroma.2005.07.007 . [all data]

Cornwell and Cordano, 2003
Cornwell, E.; Cordano, G., Nueva proposicion para predecir datos de retencion obtenidos mediante cromatografia de gases de hidrocarburos derivados de las naftas, Revista de la Sociedad Quimica de Mexico, 2003, 47, 1, 38-43. [all data]

Spieksma, 1999
Spieksma, W., Determination of vapor liquid equilibrium from the Kovats retention index on dimethylsilicone using the Wilson mixing tool, J. Hi. Res. Chromatogr., 1999, 22, 10, 565-588, https://doi.org/10.1002/(SICI)1521-4168(19991001)22:10<565::AID-JHRC565>3.0.CO;2-2 . [all data]

Timón, Ventanas, et al., 1998
Timón, M.L.; Ventanas, J.; Martín, L.; Tejeda, J.F.; García, C., Volatile compounds in supercritical carbon dioxide extracts of Iberian ham, J. Agric. Food Chem., 1998, 46, 12, 5143-5150, https://doi.org/10.1021/jf980652v . [all data]

Xiuhua, Zhang, et al., 1996
Xiuhua, Zh.; Zhang, L.; Che, X., Prediction of the Kovats retention indexes of polysubstituted alkylbenzenes, Chin. J. Chromatogr., 1996, 14, 4, 244-248. [all data]

Matisová, Juranyiová, et al., 1991
Matisová, E.; Juranyiová, E.; Kurán, P.; Brandsteterová, E.; Kocan, A.; Holotík, S., Analysis of multicomponent mixtures by high-resolution capillary gas chromatography and combined gas chromatography-mass spectrometry. I. Aromatics in a hydrocarbon matrix, J. Chromatogr., 1991, 552, 301-312, https://doi.org/10.1016/S0021-9673(01)95946-1 . [all data]

Engewald and Maurer, 1990
Engewald, W.; Maurer, T., Enhanced possibilities for identification by the use of series-coupled capillary gas chromatographic columns. I. General exposition and application of the retention index concept, J. Chromatogr., 1990, 520, 3-13, https://doi.org/10.1016/0021-9673(90)85078-A . [all data]

Waggott and Davies, 1984
Waggott, A.; Davies, I.W., Identification of organic pollutants using linear temperature programmed retention indices (LTPRIs) - Part II, 1984, retrieved from http://dwi.defra.gov.uk/research/completed-research/reports/dwi0383.pdf. [all data]


Notes

Go To: Top, Normal alkane RI, non-polar column, custom temperature program, References