I can analyze your material if you want to send it to the United States. It does not take a month unless it is for Os, Ir, Rh, Ru, Pt, Pd, Au, Ag and in that case, maybe up to 2 months depending on volume.
In any event, the use of ammonium chloride is appropriate in certain circumstances if the lack of sister PGMs, particularly iridium is confirmed.
In any event, the use of ammonium chloride is appropriate in certain circumstances if the lack of sister PGMs, particularly iridium is confirmed.