Can use UV-Visible spectroscopy for the same. Hope the below links help you.

https://www.sciencedirect.com/science/article/pii/S0921883117304260

https://www.sciencedirect.com/science/article/pii/S0925346717305505

Thank you Rohini

I will check the mentioned articles

Dear Mohamed Kashbor

You can take advantage of this search

Thanks dear Eman Kareem

"Adsorption reaction mechanism"? - so you assume you will deal with chemisorption.

Either way, you need to perform the experiment and determine the equilibrium concentrations. Having them and confronting them with one of the many adsorption isotherms you may but you may not get information about the mechanism of the phenomenon. You can also do kinetic experiments. Here, however, linking the model to the mechanism of the phenomenon is very difficult. Regards,

One can use a lot of different methods and related instruments both in relation to the adsorbent structure and its surface, as well as phenomena occurring on adsorbent surface. There are at least a dozen or so of such methods. One of them can also be an integrated ASAP2020 system combining a few measuring techniques. However, before that, one should ask the question about the purpose of research and what we are aiming at. Regards,

Thank you for your answer Mr. Grzesik

I am aiming to study the interaction mechanisms of different corrosion inhibitors with the surface metal of pipelines, because all manufacturing companies of these chemicals are hidden the mechanism of the occureded reaction and other significant details that will make their chemical easily synthesised by other companies.

I did not think it was a corrosion process, not an adsorption. Hence my earlier answer regarding the adsorption equilibrium. I know nothing about corrosion inhibitors and their interactions. And that they protect know-how is no wonder. Regards,

Good luck mate