Pyrazine, tetramethyl-

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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-WaxInnowaxCarbowax 20MDB-WaxCarbowax 20M
Column length (m) 30.30. 30. 
Carrier gas HeHelium He 
Substrate      
Column diameter (mm) 0.320.25 0.25 
Phase thickness (μm) 0.250.50   
Program 45C(5min) => 5C/min => 150C => 10C/min => 240C (10min)40 0C (2 min) 10 0C/min -> 100 0C 3 0C/min -> 160 0C 5 0C/min -> 260 0C (10 min)not specifiednot specifiednot specified
I 1440.1486.1458.1453.1439.
ReferenceKrings, Zelena, et al., 2006Ito and Mori, 2004Vinogradov, 2004Hatsuko, Kazuko, et al., 1992Mihara and Masuda, 1987
Comment MSDC-RI MSDC-RI MSDC-RI MSDC-RI MSDC-RI
Column type Capillary
Active phase Carbowax 400, Carbowax 20M, Carbowax 1540, Carbowax 4000, Superox 06, PEG 20M, etc.
Column length (m) 50.
Carrier gas Hydrogen
Substrate  
Column diameter (mm) 0.32
Phase thickness (μm)  
Program not specified
I 1467.
ReferenceWaggott and Davies, 1984
Comment 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.

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]

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]

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