They appear to have the following characteristics: (1) the residual hydrocarbon amount per unit parent material in the source rocks (total organic carbon, TOC) is represented by S 1/TOC or "A /TOC (Dickey 1975; Hao et al. 1996; Durand 1988).
However, D. arizonae had higher amounts of most hydrocarbons than D. mojavensis and females of both species exhibited greater hydrocarbon amounts than males.
With few exceptions, the oxygen balance of the nitrate ester correlated with the temperature dependence of the products, the CO2/CO ratio, the NO/CO ratio, and the amounts of H2O and total hydrocarbon liberated.
In 2012 total hydrocarbon replacement (including gas) at Shell was a slender 44%.
Total hydrocarbon content was reduced a little by catalytic reforming.
The Scottish share of total hydrocarbon production (including NGLs) was 80%.
We quantified amounts of 36 peaks in each sample after eliminating 18 peaks with areas that accounted for less than 1% of the total hydrocarbon abundance in at least one fly in all populations.
The amount hydrocarbon generated from pyrolysis experiment is greater than free hydrocarbons (S1 > S3).
For all multivariate analyses, we first calculated logcontrasts of the proportions of each hydrocarbon of the total signal intensities to eliminate multicollinearity among sample peak amounts if simple proportions had been used [46].
Biodegradation was calculated as (X0 – X1)/ X0 100%, where X0 is the initial amount of hydrocarbon, X1 the amount of hydrocarbon after biodegradation.
