Can I convert the ppm concentration of elements into millimoles per mole, analysed by ICP-AES?

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Aafaq Nazir

Thanks Andrew

Zoltan Sandor

Not!

That is practically impossible. Because you don't know the sum of moles and molecular weights of every components in your otolith sample.

You can convert your results into moles/kg or millimoles/kg (or millimoles/g).

Jesper Allan Frederiksen

I am sorry Andrew, but isn't 100 ppm equal to 0.0001g.? I mean 100/1000000 must be 0.0001.

Correct me if I am wrong.

But as Zoltan writes, it is not that easy to convert from ppm to mmol/mol.

Cheers