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Mass spectral fragmentation aromatic hydrocarbons

Samples are separated into saturate and aromatic fractions by Method D 2549, and each fraction is analyzed by mass spectrometry. The analysis is based on the summation of characteristic mass fragments to determine the concentration of hydrocarbon types. The average carbon numbers of the hydrocarbon types are estimated from spectral data. Calculations are made from calibration data dependent upon the average carbon number of the hydrocarbon types. The results of each fraction are mathematically combined according to their mass fractions as determined by the separation procedure. Results are expressed in mass percent. [Pg.346]

See other pages where Mass spectral fragmentation aromatic hydrocarbons is mentioned: [Pg.67]    [Pg.7]    [Pg.267]    [Pg.2]    [Pg.84]    [Pg.81]   
See also in sourсe #XX -- [ Pg.413 ]

See also in sourсe #XX -- [ Pg.40 , Pg.151 , Pg.152 , Pg.153 , Pg.154 , Pg.155 , Pg.157 ]

See also in sourсe #XX -- [ Pg.459 ]



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