Pyrazine, 2,3-dimethyl-


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

Go To: Top, References, Notes

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 RTX-5 MSRTX-5 MSCP-Sil 5 CbSLB-5MSHP-5 MS
Column length (m) 30.30.50.10.30.
Carrier gas HeliumHeliumNitrogenHeliumHelium
Substrate      
Column diameter (mm) 0.250.250.320.180.25
Phase thickness (μm) 0.250.251.200.180.25
Program 50 0C (5 min) 2 0C/min -> 100 0C (5 min) 5 0C/min -> 300 0Cnot specified40 0C 20 0C/min -> 85 0C 1 0C/min -> 145 0C 3 0C/min -> 250 0C (30 min)not specified50 0C (2 min) 20 0C/min -> 80 0C (1 min) 20 0C -> 100 0C (1 min) 30 0C/min -> 230 0C (2 min)
I 926.920.906.916.919.
ReferenceMebazaa, Mahmoudi, et al., 2009Mebazaa, Mahmoudi, et al., 2009Collin, Nizet, et al., 2008Risticevic, Carasek, et al., 2008Wan Aida, Ho, et al., 2008
Comment MSDC-RI MSDC-RI MSDC-RI MSDC-RI MSDC-RI
Column type CapillaryCapillaryCapillaryCapillaryCapillary
Active phase HP-5HP-5MSCP Sil 5 CBSE-30DB-5
Column length (m) 30.30.50. 30.
Carrier gas HeHe   
Substrate      
Column diameter (mm) 0.250.250.32 0.32
Phase thickness (μm) 0.250.251.2 1.
Program 50C(2min) => 2C/min => 140C => 10C/min => 280C (10min)50C(2min) => 20C/min => 80C (1min) => 20C/min => 100C(1min) => 30C/min => 230C(3min)36C => 20C/min => 85C => 1C/min => 145C => 3C/min => 250C(30min)not specified35C(4min) => 2C/min => 130C => 4C/min => 250C
I 922.919.897.900.892.
ReferenceCharacterization of Pyrazines in Some Chinese Liquors and Their Approximate Concentrations, 2007Ho, Wan Aida, et al., 2007Counet, Ouwerx, et al., 2004Vinogradov, 2004Qian and Reineccius, 2003
Comment MSDC-RI MSDC-RI MSDC-RI MSDC-RI MSDC-RI
Column type CapillaryCapillaryCapillaryCapillaryCapillary
Active phase CP Sil 5 CBDB-5DB-1DB-1OV-1, SE-30, Methyl silicone, SP-2100, OV-101, DB-1, etc.
Column length (m) 50.60.60.60.50.
Carrier gas  Helium  Hydrogen
Substrate      
Column diameter (mm) 0.320.250.250.250.32
Phase thickness (μm) 1.20.250.250.25 
Program 36C => 20C/min => 85C => 1C/min => 145C=3C/min => 250C(30min)35 0C (2 min) 30 0C/min -> 60 0C (1 min) 6 0C/min -> 250 0C (10 min)not specifiednot specifiednot specified
I 899.911.894.895.897.
ReferenceCounet, Callemien, et al., 2002Didzbalis and Ho, 2001Kawai, Ishida, et al., 1991Kawai, Ishida, et al., 1991Waggott and Davies, 1984
Comment MSDC-RI MSDC-RI MSDC-RI MSDC-RI MSDC-RI
Column type Capillary
Active phase OV-1, SE-30, Methyl silicone, SP-2100, OV-101, DB-1, etc.
Column length (m) 50.
Carrier gas Hydrogen
Substrate  
Column diameter (mm) 0.32
Phase thickness (μm)  
Program not specified
I 901.
ReferenceWaggott and Davies, 1984
Comment 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.

Mebazaa, Mahmoudi, et al., 2009
Mebazaa, R.; Mahmoudi, A.; Fouchet, M.; Dos Santos, M.; Kamissoko, F.; Nafti, A.; Ben Cheikh, R.; Rega, B.; Camel, V., Characterization of volatile compounds in Tunisian fenugreek seeds, Food Chem., 2009, 115, 4, 1326-1336, https://doi.org/10.1016/j.foodchem.2009.01.066 . [all data]

Collin, Nizet, et al., 2008
Collin, S.; Nizet, S.; Muls, S.; Iraqi, R.; Bouseta, A., Characterization of odor-active compounds in extracts obtained by simultaneous extraction/distillation from Moroccan black olives, J. Agric. Food Chem., 2008, 56, 9, 3273-3278, https://doi.org/10.1021/jf073488x . [all data]

Risticevic, Carasek, et al., 2008
Risticevic, S.; Carasek, E.; Pawliszyn, J., Headspace solid-phase microextraction-gas chromatographic-time-of-flight mass spectrometric methodology for geographical origin verification of coffee, Anal. Chim. Acta, 2008, 617, 1-2, 72-84, https://doi.org/10.1016/j.aca.2008.04.009 . [all data]

Wan Aida, Ho, et al., 2008
Wan Aida, W.M.; Ho, C.W.; Maskat, M.Y.; Osman, H., Relating descriptive sensory analysis to gas chromatography / mass spectrometry of palm sugars using partial least squares regression, ASEAN Food J., 2008, 15, 1, 35-45. [all data]

Characterization of Pyrazines in Some Chinese Liquors and Their Approximate Concentrations, 2007
Characterization of Pyrazines in Some Chinese Liquors; Their Approximate Concentrations, W. Fan; Y. Xu; Y. Zhang, J. Agric. Food Chem., 2007, 55, 9956-9962. [all data]

Ho, Wan Aida, et al., 2007
Ho, C.W.; Wan Aida, W.M.; Maskat, M.Y.; Osman, H., Changes in volatile compounds of palm sap (Arenga pinnata) during the heating process for production of palm sugar, Food Chem., 2007, 102, 4, 1156-1162, https://doi.org/10.1016/j.foodchem.2006.07.004 . [all data]

Counet, Ouwerx, et al., 2004
Counet, C.; Ouwerx, C.; Rosoux, D.; Collin, S., Relationship between procyanidin and flavor contents of cocoa liquors from different origins, J. Agric. Food Chem., 2004, 52, 20, 6243-6249, https://doi.org/10.1021/jf040105b . [all data]

Vinogradov, 2004
Vinogradov, B.A., Production, composition, properties and application of essential oils, 2004, retrieved from http://viness.narod.ru. [all data]

Qian and Reineccius, 2003
Qian, M.; Reineccius, G., Potent aroma compounds in Parmigiano Reggiano cheese studied using a dynamic headspace (purge-trap) method, Flavour Fragr. J., 2003, 18, 3, 252-259, https://doi.org/10.1002/ffj.1194 . [all data]

Counet, Callemien, et al., 2002
Counet, C.; Callemien, D.; Ouwerx, C.; Collin, S., Use of gas chromatography-olfactometry to identify key odorant compounds in dark chocolate. Comparison of samples before and after conching, J. Agric. Food Chem., 2002, 50, 8, 2385-2391, https://doi.org/10.1021/jf0114177 . [all data]

Didzbalis and Ho, 2001
Didzbalis, J.; Ho, C.-T., Analysis of low molecular weight aldehydes formed during the Mallard reaction, ACS Symposium Series, 2001, 794, 196-107. [all data]

Kawai, Ishida, et al., 1991
Kawai, T.; Ishida, Y.; Kakiuchi, H.; Ikeda, N.; Higashida, T.; Nakamura, S., Flavor components of dried squid, J. Agric. Food Chem., 1991, 39, 4, 770-777, https://doi.org/10.1021/jf00004a031 . [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