566 



Annals New York Academy of Sciences 



Table 8 



Mass Spectrum of Benzene Eluate from Silica Gel of the 2-Murray 20-Hour Extract. 



Aromatic Hydrocarbon Fraction 



Total ionization = 38025.84 



Ionizing potential = 12 volts 



Humble aromatic type analysis in percentage 



Alky] benzenes 4.73 



Naphthalenes 3 . 65 



Acenaphthenes 7.72 



Acenaphthylenes 2.81 



Phenanthrenes 6.36 



Diacenaphthylenes 4.75 



Pyrenes 13.14 



Chrysenes 7.57 



Acepyrenes 2 . 93 



Benzpyrenes & other organic compounds 46.34 



Total 



100.00 



