Changes

file:oil-and-condensate-analysis_fig4.png|{{figure number|4}}Gas chromatogram showing drilling mud contamination to a biodegraded oil.

file:oil-and-condensate-analysis_fig4.png|{{figure number|4}}Gas chromatogram showing drilling mud contamination to a biodegraded oil.

file:oil-and-condensate-analysis_fig5.png|{{figure number|5}}(a) Gas chromatographic data can be displayed as chromatograms at different attenuations, (b) as star diagrams of selected peak height ratios, or (c) as data tables of peak height ratios. The star diagram is a polar plot of the peak height ratio data from the table, which shows data from the chromatographic trace for peaks between ''n''-C₁₇ and ''n''-C₂₅.

file:oil-and-condensate-analysis_fig5.png|{{figure number|5}}(a) Gas chromatographic data can be displayed as chromatograms at different attenuations, (b) as star diagrams of selected peak height ratios, or (c) as data tables of peak height ratios. The star diagram is a polar plot of the peak height ratio data from the table, which shows data from the chromatographic trace for peaks between ''n''-C₁₇ and ''n''-C₂₅.

The most common analyses done to determine molecular composition are as follows (see <ref name=pt05r1>Altgelt, K. W., Gouw, T. H., 1979, Chromatography in Petroleum Analysis: New York, Marcel Dekker.</ref>, and <ref name=pt05r154 />, for a description of these analyses and their applications):

The most common analyses done to determine molecular composition are as follows (see <ref name=pt05r1>Altgelt, K. W., Gouw, T. H., 1979, Chromatography in Petroleum Analysis: New York, Marcel Dekker.</ref>, and <ref name=pt05r154 />, for a description of these analyses and their applications):