CPC G01N 21/33 (2013.01) [G01N 1/4077 (2013.01); G01N 33/1833 (2013.01); G01N 2001/4083 (2013.01); G01N 2201/127 (2013.01); G01N 2201/12746 (2013.01)] | 11 Claims |
1. A method for quantifying a crude oil in water, comprising:
selecting an ultraviolet/visible (UV/Vis) wavelength to perform a measurement;
preparing calibration solutions in xylene;
preparing a calibration curve from the calibration solutions;
preparing a sample comprising extracting the crude oil from the water in a two-phase separation with xylene;
measuring an absorbance of the sample in the xylene at the UV/Vis wavelength; and
calculating a concentration of the crude oil in the water from the absorbance.
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