Hello Raja Mohsin
In inquartation method, you can solve silver and copper.
I will explain you two things which is you already know but you dont want to tell here.
I respect that but i will explain my experience. Not yours.
I used this xrf once, my previous job was training customers. Anyway there are programs to ''not show this metal on report'' option. That is one example that. Maybe its really pure i dont know.
You may refine perfectly inquartation method to remove other metals such as silver and copper maybe other metals too, after you take the metal powder, you wash with nitric acid wash with other chemicals (you can tell us its already written in Hoke).
So, it shows some xrf which is not expensive ones. Shows 99.99%. But same gold with Niton XL3+Goldd device definetly not 99.99%.
In pakistan, there are no so much refiner like india or dubai.
So, We can believe you made 99.99% but i think its not possible my friend. Just because cheap XRF device (15-20K Euros) shows 99.99% doesnt mean it is pure. Once you wanted to produce grams on that, after laminating you will see my point.
You write on this forum people is like born yesterday. We respect your work, you should respect us.
You joined on 11 Jan 2024, and i think you didnt read all the topics. Please read them first because your process maybe already used by some of members maybe 5 years ago.
Thank you
Edit is only for correction my sentence.
I am here for learning more in gold refining etc like aqua regia etc