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Pyrazine, 2-ethenyl-5-methyl-

Normal alkane RI, polar column, temperature ramp

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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 FFAPZB-WaxFFAPTC-WaxDB-Wax
Column length (m)
Carrier gas NitrogenHeliumN2He 
Column diameter (mm) 0.320.320.320.250.25
Phase thickness (mum) 0.500.500.50.50.25
Tstart (C)
Tend (C) 250.220.320.230.250.
Heat rate (K/min)
Initial hold (min)
Final hold (min) 45.5.45.  
I 1516.1538.1516.1513.1489.
ReferenceBudryn, Nebesny, et al., 2011Marin, Pozrl, et al., 2008Nebesny, Budryn, et al., 2007Ishikawa, Ito, et al., 2004Tanaka, Yamauchi, et al., 2003
Column type CapillaryCapillaryCapillaryCapillary
Active phase HP-WaxHP-WaxCarbowax 20MCarbowax 20M
Column length (m)
Carrier gas HeHe  
Column diameter (mm)
Phase thickness (mum) 0.50.5  
Tstart (C)
Tend (C)
Heat rate (K/min)
Initial hold (min) 6.6.  
Final hold (min)     
I 1520.1529.1498.1500.
ReferenceSanz, Maeztu, et al., 2002Sanz, Ansorena, et al., 2001Shibamoto and Russell, 1977Shibamoto and Russell, 1977


Go To: Top, Normal alkane RI, polar column, temperature ramp, Notes

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

Budryn, Nebesny, et al., 2011
Budryn, G.; Nebesny, E.; Kula, J.; Majda, T.; Krysiak, W., HS-SPME/GC/MS Profiles of convectively and microwave roasted Ivory Coast Robusta coffee brews, Czech. J. Food Sci., 2011, 29, 2, 151-160. [all data]

Marin, Pozrl, et al., 2008
Marin, K.; Pozrl, T.; Zlatic, E.; Plestenjak, A., A new aroma index to determine the aroma quality of roasted and ground coffee during storage, Food Technol. Biotechnol., 2008, 46, 4, 442-447. [all data]

Nebesny, Budryn, et al., 2007
Nebesny, E.; Budryn, G.; Kula, J.; Majda, T., The effect of roasting method on headspace composition of robusta coffee bean aroma, Eur. Food Res. Technol., 2007, 225, 1, 9-19, https://doi.org/10.1007/s00217-006-0375-0 . [all data]

Ishikawa, Ito, et al., 2004
Ishikawa, M.; Ito, O.; Ishizaki, S.; Kurobayashi, Y.; Fujita, A., Solid-phase aroma concentrate extraction (SPACE ): a new headspace technique for more sensitive analysis of volatiles, Flavour Fragr. J., 2004, 19, 3, 183-187, https://doi.org/10.1002/ffj.1322 . [all data]

Tanaka, Yamauchi, et al., 2003
Tanaka, T.; Yamauchi, T.; Katsumata, R.; Kiuchi, K., Comparison of volatile components in commercial Itohiki-Natto by solid phase microextraction and gas chromatography, Nippon Shokuhin Kagaku Kogaku Kaishi, 2003, 50, 6, 278-285, https://doi.org/10.3136/nskkk.50.278 . [all data]

Sanz, Maeztu, et al., 2002
Sanz, C.; Maeztu, L.; Zapelena, M.J.; Bello, J.; Cid, C., Profiles of volatile compounds and sensory analysis of three blends of coffee: influence of different proportions of Arabica and Robusta and influence of roasting coffee with sugar, J. Sci. Food Agric., 2002, 82, 8, 840-847, https://doi.org/10.1002/jsfa.1110 . [all data]

Sanz, Ansorena, et al., 2001
Sanz, C.; Ansorena, D.; Bello, J.; Cid, C., Optimizing headspace temperature and time sampling for identification of volatile compounds in ground roasted Arabica coffee, J. Agric. Food Chem., 2001, 49, 3, 1364-1369, https://doi.org/10.1021/jf001100r . [all data]

Shibamoto and Russell, 1977
Shibamoto, T.; Russell, G.F., A study of the volatiles isolated from a D-glucose-hydrogen sulfide-ammonia model system, J. Agric. Food Chem., 1977, 25, 1, 109-112, https://doi.org/10.1021/jf60209a054 . [all data]


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