Abstract
Chemical sample preparation methods (such as high temperature fusion, autoclave decomposition and acid dissolutionin open systems) of catalysts for oil refining processes to determine their elemental composition by using Inductively coupled plasma atomic emission spectroscopy were considered. The influence of HNO3, H3PO4, H2SO4, Н2О2, Li2B4O7 necessaryfor the conversion of the catalysts into an solution on the value of the analytical signal for the some elements was studied.Regularities and features of various methods of sample preparation and their influence on the completeness of the transition of certain elements into solution are established.
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