Pyrazine, 2,5-dimethyl-

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Normal alkane RI, 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 DB-WaxDB-WaxHP-InnowaxHP-InnowaxDB-Wax
Column length (m) 30.30.60.60.30.
Carrier gas HydrogenHydrogenHeliumHeliumHe
Substrate      
Column diameter (mm) 0.250.250.320.320.32
Phase thickness (μm) 0.250.250.250.250.25
Program 44 0C 3 0C/min -> 170 0C 8 0C/min -> 250 0Cnot specified40 0C (5 min) 4 0C/min -> 60 0C (5 min) 8 0C/min -> 250 0C (3 min)not specified45C(5min) => 5C/min => 150C => 10C/min => 240C (10min)
I 1322.1347.1328.1334.1281.
ReferenceGonzalez-Rios, Suarez-Quiroz, et al., 2007Gonzalez-Rios, Suarez-Quiroz, et al., 2007Viegas and Bassoli, 2007Viegas and Bassoli, 2007Krings, Zelena, et al., 2006
Comment MSDC-RI MSDC-RI MSDC-RI MSDC-RI MSDC-RI
Column type CapillaryCapillaryCapillaryCapillaryCapillary
Active phase TC-WaxInnowaxDB-WaxTC-WaxCarbowax 20M
Column length (m)  30.60.  
Carrier gas  HeliumHelium  
Substrate      
Column diameter (mm)  0.250.25  
Phase thickness (μm)  0.500.25  
Program not specified40 0C (2 min) 10 0C/min -> 100 0C 3 0C/min -> 160 0C 5 0C/min -> 260 0C (10 min)60 0C (3 min) 2 0C/min -> 150 0C 4 0C/min -> 200 0Cnot specifiednot specified
I 1338.1334.1320.1338.1320.
ReferenceKraft and Switt, 2005Ito and Mori, 2004Kim. J.H., Ahn, et al., 2004Tachihara, Ishizaki, et al., 2004Vernin, Lageot, et al., 1998
Comment MSDC-RI MSDC-RI MSDC-RI MSDC-RI MSDC-RI
Column type CapillaryCapillaryCapillaryCapillaryCapillary
Active phase Carbowax 20MSupelcowax-10DB-WaxCarbowax 20MCarbowax 400, Carbowax 20M, Carbowax 1540, Carbowax 4000, Superox 06, PEG 20M, etc.
Column length (m)  30.30. 50.
Carrier gas  HeHe Hydrogen
Substrate      
Column diameter (mm)  0.320.25 0.32
Phase thickness (μm)  0.25   
Program not specified50C(2min) => 7C/min => 140C => 17.5C/min => 230Cnot specifiednot specifiednot specified
I 1320.1306.1308.1290.1290.
ReferenceVernin, Lageot, et al., 1998Chang, Seitz, et al., 1995Hatsuko, Kazuko, et al., 1992Mihara and Masuda, 1987Waggott and Davies, 1984
Comment MSDC-RI MSDC-RI MSDC-RI MSDC-RI MSDC-RI

References

Go To: Top, Normal alkane RI, 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.

Gonzalez-Rios, Suarez-Quiroz, et al., 2007
Gonzalez-Rios, O.; Suarez-Quiroz, M.L.; Boulanger, R.; Barel, M.; Guyot, B.; Guiraud, J.-P.; Schorr-Galindo, S., Impact of ecological post-harvest processing of coffee aroma: II Roasted coffee., J. Food Composition Analysis, 2007, 20, 3-4, 297-307, https://doi.org/10.1016/j.jfca.2006.12.004 . [all data]

Viegas and Bassoli, 2007
Viegas, M.C.; Bassoli, D.G., Utilizacao do indice de retencao linear para caracterizacao de compostos volateis em cafe soluvel utilizando GC-MS e coluna HP-Innowax, Quim. Nova, 2007, 30, 8, 2031-2034, https://doi.org/10.1590/S0100-40422007000800040 . [all data]

Krings, Zelena, et al., 2006
Krings, U.; Zelena, K.; Wu, S.; Berger, R.G., Thin-layer high-vacuum distillation to isolate volatile flavour compounds of cocoa powder, Eur. Food Res. Technol., 2006, 223, 5, 675-681, https://doi.org/10.1007/s00217-006-0252-x . [all data]

Kraft and Switt, 2005
Kraft, P.; Switt, K.A.D. (Eds), Perspectives in Flavor and Fragrance Research, Wiley-VCH, Weinheim, Germany, 2005, 251. [all data]

Ito and Mori, 2004
Ito, K.; Mori, M., Formation of pyrazines in aqueous maltose/glucose/fructose-glutamide model systems upon heating at below 100 0C, Food Sci. Technol. Res., 2004, 10, 2, 199-204, https://doi.org/10.3136/fstr.10.199 . [all data]

Kim. J.H., Ahn, et al., 2004
Kim. J.H.; Ahn, H.J.; Yook, H.S.; Kim, K.S.; Rhee, M.S.; Ryu, G.H.; Byun, M.W., Color, flavor, and sensory characteristics of gamma-irradiated salted and fermented anchovy sauce, Radiation Phys. Chem., 2004, 69, 2, 179-187, https://doi.org/10.1016/S0969-806X(03)00400-6 . [all data]

Tachihara, Ishizaki, et al., 2004
Tachihara, T.; Ishizaki, S.; Ishikawa, M.; Kitahara, T., Studies on the volatile compounds of roasted spotted shrimp, Chemistry Biodiversity, 2004, 1, 12, 2024-2033, https://doi.org/10.1002/cbdv.200490155 . [all data]

Vernin, Lageot, et al., 1998
Vernin, G.; Lageot, C.; Parkanyi, C., GC-MS(EI, PCI, NCI, SIM, ITMS) Data Bank Analysis of Flavors and Fragrances. Kovats indices in Instrumental Methods on Food and Beverage Analysis, D. Wetzel, G. Charalambous, ed(s)., Elsevier Sci. B.V., Amsterdam, 1998, 245-301. [all data]

Chang, Seitz, et al., 1995
Chang, C.-Y.; Seitz, L.M.; Chambers, E., IV, Volatile Flavor Components of Breads Made from Hard Red Winter Wheat and Hard White Winter Wheat, Cereal Chem., 1995, 72, 3, 237-242. [all data]

Hatsuko, Kazuko, et al., 1992
Hatsuko, S.; Kazuko, H.; Masayoshi, K.; Yoshiaki, I., Improvement of quality of likorine extract by heat treatment, J. Food Sci. Technol., 1992, 39, 11, 976-983, https://doi.org/10.3136/nskkk1962.39.976 . [all data]

Mihara and Masuda, 1987
Mihara, S.; Masuda, H., Correlation between molecular structures and retention indices of pyrazines, J. Chromatogr., 1987, 402, 309-317, https://doi.org/10.1016/0021-9673(87)80029-8 . [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

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