The GB/T 11066.8-2009 standard specifies a method for the determination of silver, copper, iron, lead, antimony, bismuth, palladium, mg, nickel, manganese and chromium in gold. The method is suitable for gold samples with a gold content of 99.95% to 99.99%. The sample is extracted and separated by ethyl acetate in 3 mol/L muriatic acid medium by mixed acid analysis. The separated aqueous phase is condensed and made into a solution to be tested in muriatic acid medium. Finally, the Inductance coupled plasma Atomic EmissionSpectrometer is used for the quantitative determination of each element. The standard details the required reagents and their configuration methods, including muriatic acid, nitric acid, ethyl acetate, etc., to ensure the accuracy of the analysis.