Determination method for gold and palladium in decoppered slag produced in wet treatment process for copper anode slime

The invention discloses a determination method for gold and palladium in decoppered slag produced in a wet treatment process for copper anode slime. The method comprises the following steps: adding tartaric acid, thiourea and nitric acid into a sample, carrying out heating to a slight boiling for digestion, then carrying out filtering and washing filter residues; transferring the filter residues and filter paper into a crucible for charring and ashing, adding aqua regia, carrying out heating to a slight boiling for digestion, then carrying out filtering and washing filter residues; and determining the contents of gold and palladium in the above two filtrates and subjecting the contents to addition. According to the invention, tartaric acid can eliminate interference of coexisting ions consisting of Fe ions, Pb ions, Zn ions and the like; thiourea can lower adsorption effect of a silver chloride precipitate on palladium; nitric acid is added in stages, which is beneficial for realizing complete digestion and i