Review of Research on Pre-treatment Methods for Trace Element Detection in Petroleum Coke
The petroleum coke was an important raw material for production and manufacturing,and the type and the content of trace elements in petroleum coke affected the performance and quality of the final product.In the determination of trace elements in petroleum coke,it was necessary to pretreat the sample,and the pretreatment method was related to the accuracy of the experimental data.In order to have a comprehensive understanding of the pretreatment methods for the de-tection of trace elements in petroleum coke,we expounded the commonly used pretreatment methods such as wet digestion,combustion,microwave digestion and standard commonly used alkali melting method.Focused on the pretreatment method of wet digestion and the role of the acid used in digestion,we analyzed the advantages and disadvantages of various pretreat-ment methods,and looked forward to their future development direction.According to the advantages and disadvantages of the pretreatment method of the detected elements,the selection of appropriate pretreatment methods could effectively im-prove the accuracy of the detection of elements and maintain the safety of the experiment.
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