CPC G01N 33/2882 (2013.01) [C10L 1/003 (2013.01); G01N 1/4055 (2013.01); G01N 21/64 (2013.01); C09B 11/08 (2013.01); C09B 11/24 (2013.01); C10L 2200/0423 (2013.01); C10L 2230/16 (2013.01); G01N 2001/4061 (2013.01)] | 21 Claims |
1. A method for identifying a hydrocarbon fuel, the method comprising:
obtaining a sample of a hydrocarbon fuel containing a measurable amount of a marker compound, the marker compound having a fluorescence intensity and at least partially soluble in distilled or deionized water;
combining the hydrocarbon fuel with distilled or deionized water to form a fuel-and-water mixture and mixing the fuel-and-water mixture;
after the mixing, allowing the fuel-and-water mixture to separate into a water phase and a fuel phase to at least partially extract the marker compound into the water phase;
subjecting the water phase to light having a wavelength of 250 nm to 800 nm and observing the fluorescence emitted from the marker compound in the water phase; and
wherein the marker compound having a fluorescence intensity has a structure of Formula II:
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