The difference between different digestion and determination methods of silver in silver ore was studied in detail,and a simple,fast,cost-effective and reliable method was selected.The digestion procedure mainly studied three systems:hydrochloric acid-nitric acid-electric hot platedigestion,hydrofluoric acid-nitric acid-hydrofluoric acid-perchloric acid-electric hot platedigestion,and nitric acid-hydrochloric acid-hydrofluoric acid-hydrogen peroxide-super microwave digestion.The determination methods mainly include flame atomic absorption spectrometry,inductively coupled plasma emission spectrometry and inductively coupled plasma mass spectrometry.By comparison,it was found that(nitric acid-hydrochloric acid-hydrofluoric acid-hydrogen peroxide)ultramicrowave digestion-inductively coupled plasma emission spectrometry can achieve low detection limit,fast detection speed,high accuracy,good precision,wide linear range,and simultaneous determination of multiple elements.The results are satisfactory,which isworthy of research and application.
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