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Line 119: − In other cases, particularly in rock extracts, the sample may be contaminated. Plasticizers, for example, are common but are usually easy to recognize. The figure below shows a gas chromatogram of saturated hydrocarbons from a source rock sample contaminated with bits of plastic. The largest peak is dioctylphthalate, derived from contact with the plastic. − + + +
Gas chromatography: data obtained (view source)
Revision as of 14:46, 4 February 2014
, 14:46, 4 February 2014→Limitations due to contaminated samples
==Limitations due to contaminated samples==
==Limitations due to contaminated samples==
[[file:oiloil-and-oilsource-rock-correlations_fig8-19.png|thumb|{{figure number|8-19}}See text for explanation.]]
[[file:oiloil-and-oilsource-rock-correlations_fig8-19.png|left|thumb|{{figure number|15}}See text for explanation.]]
In other cases, particularly in rock extracts, the sample may be contaminated. Plasticizers, for example, are common but are usually easy to recognize. [:file:oiloil-and-oilsource-rock-correlations_fig8-19.png|figure 15]] shows a gas chromatogram of saturated hydrocarbons from a source rock sample contaminated with bits of plastic. The largest peak is dioctylphthalate, derived from contact with the plastic.
==Biodegradation limitations==
==Biodegradation limitations==