Method for detecting copper in electronic waste

The invention relates to a method for detecting copper in electronic waste, and belongs to the technical field of chemistry and metallurgy. The method comprises the following steps of: 1) weighing a sample; 2) carbonizing; 3) ashing; 4) transferring the sample; 5) decomposing the sample; and 6) determining the copper content by iodometry. According to the method, organic matters are carbonized bylow-temperature firing so that sample splashing and formation of acid-insoluble salts caused by rapid volatilization are avoided; and then high-temperature firing is carried out so that sufficient andcomplete ashing is guaranteed, meanwhile, toxic substance dioxin caused by incomplete combustion of materials in the electronic waste is avoided, and the operation safety is guaranteed. The method issuitable for detecting the copper in the electronic waste copper material, ensures that the sample can be completely decomposed, and solves the problems of poor repeatability and accuracy of the analysis result of the existing