GB/T 20899.15-2023 "Methods for chemical analysis of gold ores, Part 15: Determination of copper, lead, zinc, silver, iron, manganese, nickel, cobalt, aluminum, chromium, cadmium, antimony, bismuth, arsenic, mercury, selenium, barium and beryllium content" Inductance-coupled plasma Mass spectrometry "specifies a specific method for the determination of copper, lead, zinc, silver, iron, manganese, nickel, cobalt, aluminum, chromium, cadmium, antimony, bismuth, arsenic, mercury, selenium, barium and beryllium content in gold ores by Inductance-coupled plasma Mass spectrometry. This standard applies to the determination of various elements in gold ores to ensure the accuracy and comparability of the determination results. The use of this standard requires practical experience in formal laboratory work, and users should take appropriate safety and health measures to ensure compliance with relevant national regulations.