| abstract |
The invention discloses a method for detecting trace elements in pyrite, which comprises the steps of adsorbing an iron substrate in pyrite by using modified polyurethane foam, measuring the adsorption efficiency of the modified polyurethane foam on the iron substrate by ICP-OES, and detecting the content of the trace elements by ICP-MS and ICP-OES. The modified polyurethane foam is modified by isothiocyanate and/or mercaptan, has high adsorption rate on iron substrates in pyrite, is beneficial to recovering trace elements in pyrite, and ensures that the recovery rate of 17 trace elements in pyrite is 95-103%. The modified polyurethane foam provided by the invention has a specific adsorption effect on iron matrix, and is large in adsorption quantity and acid-resistant, so that the purpose of quickly, accurately and precisely detecting trace elements in pyrite is realized. |