Dear Yasir,

from the table provided at the link you may identify the elements by yourself.

Good luck.

It is propably O at about 520eV and C at about 280eV. N should lie in between, but has no (N) peak shows up in your sample.

http://www.med.harvard.edu/jpnm/physics/refs/xrayemis.html

You should perform a reference spectrum with known composition in order to check the energy scaling in the very low energy part.

Dear Yasir,

As Dr. Gerhard Martens said, you can identify the elements from their peak positions in the above spectra. And along with that you can also follow the below link of EDAX company website which provides the interactive periodic table containing the material specific information like energy values, EBSD images, XRF data etc.

All the best.

Link:

http://www.edax.com/resources/interactive-periodic-table

@ Rana,

there should be some software around for that purpose, but I am not familar with that.

However for 'beginners' is is advised ( to my opinion) to do such work by hand, at least in the case of well separated peaks; so one gets a 'feeling' and experience on the subject, e.g. one learns whether such a software is trustworthy.

Dear Prof. Gerhard Martens

Sir As you mentioned that N should lie between C and O there is peak of N in between them just N not written clearly.

And Can anyone clarifly whats the letter written Below C , its not clear to read due to overlapping !

thanks everyone for kind contribution.

Dear Yasir,

it is Ca written there. Here the Ca L lines will pop up ~340eV; please have a look at the link shared by me above.

The second hidden letter (above 'C') is K (Potassium). Photon energies for L-lines of K are rarely found; they are a little bit lower in photon energy than the Ca L lines; around 260eV;

please see the link below:

https://physics.nist.gov/PhysRefData/XrayTrans/Html/search.html

Please select '19 Potassium (K)' in the 'Element column' there and press the 'Get Transitions' button.

Good luck

Final remark: some times the links here on RG do not work properly when clicking on them. In this case please copy the text of the link and paste it into your browser by hand.

Respected Prof. Gerhard Martens

Thanks for your kind help and directions.

Thanks for your time.

I'm much obliged !

Kindly check the attached file "Energy table for EDS analysis for all elements"