I found something of gallium for the coal industry, but for zirconium nothing to guide me.

I found what I was looking for in Thompson and Walsh (1989).

Thompson, M., Walsh, J. (1989). Handbook of inductively coupled plasma spectrometry. 2nd ed. Blackie.

Rather, you should undergo training in some good, preferably university laboratory where analysts are fluent in various spectrometric techniques to measure elemental composition, such as ICP-AES spectrometers (same as ICP-OES), ICP-MS spectrometers, and even FAAS and GFAAS. You can, of course, learn to use the ICP-AES spectrometer yourself without anyone's help, but it will be much faster and better if someone helps you. Perhaps this specific analytical task that you have to perform does not require a deep knowledge of the theoretical basis of this measurement technique, but an internship in a good analytical laboratory will always be useful in your professional work, even if in the future you no longer deal with the analysis of elemental composition personally.

Hello. Which matrix do you have for the analysis planned?

Dear colleague,

If you want to determine Ga and Zr by ICP- MS , you must select the corresponding isotopes (69Ga, 71 Ga , 90Zr )[1]. Oxide, hydroxide and other polyatomic ion interfering species can find in Ref. [2, 3]

If you want to determine Ga and Zr by ICP- OES, you will use the corresponding prominent lines of Ga and Zr [4].

References

[1].V.Balaram, S.L.Rmamesh, K.V.Anjaiah, Fresenius J Anal.Chem.(1995)353:176-182

[2]. M.A. Vaughan, G.Horlick (1986), Appl.Spectroscopy 40: 434-445

[3].Thomas W. May and Ray H. Wiedmeyer, A Table of Polyatomic Interferences in ICP-MS, Atomic Spectroscopy, (1998), Vol.19, No5, page 150

[4]. P. W. J. M. Boumans, Line Coincidence Table for Inductively Coupled Plasma Atomic Emission Spectroscopy, Pergamon Press, Oxford (1980), ISBN 0080262430;9780080262437.