Dear Hari Prasath Boopal ,

you should know that XRF is based on the detection of the fluorescence radiation of excited core holes of the atoms of the sample. In contrast to the fluorescence in the optical regime the x-ray fluorescence is not affected by the molecule/atomic bonding. So XRF is solely a detection method for elements and not for componds.

However medium to high atomic number elements in hydrocarbons (starting from about P or S) can be detected; but not the hydrocarbon part itself.

You can find a lot of systems by googling 'XRF hydrocarbon' .

Dear Hari Prasath Boopal ,

you should know that XRF is based on the detection of the fluorescence radiation of excited core holes of the atoms of the sample. In contrast to the fluorescence in the optical regime the x-ray fluorescence is not affected by the molecule/atomic bonding. So XRF is solely a detection method for elements and not for componds.

However medium to high atomic number elements in hydrocarbons (starting from about P or S) can be detected; but not the hydrocarbon part itself.

You can find a lot of systems by googling 'XRF hydrocarbon' .

XRF is solely a detection method for elements and not for compounds.

As already pointed out XRF is not able to determine organic compounds.

Therefore, I would recommend to use gas chromatography coupled with a mass detector (GC-MS).

I recommend using I.R. , C13 and NMR to identification of organic compound