Rapid determination of sulfur trioxide in coal ash using high frequency combustion infrared absorption method
LI Jian-hong
Abstract：This paper introduced the main equipment, reagents and experimental method when using the high frequency combustion infrared absorption method to do the rapid determination of sulfur trioxide in coal ash,and from aspects such as standard curve, sample weight, quantitative detection limit of the method, accuracy and precision of the method, the determination results were discussed.The results showed that,when the high frequency combustion infrared absorption method was used for determination of sulfur trioxide in coal ash, the pure substance anhydrous calcium sulfate could be used to establish the calibration curve,the relative standard deviations were 0.28% to 2.33%,this method was accurate,simple and rapid.
Keywords：high frequency combustion infrared absorption methodcoal ash compositionsulfur trioxidestandard deviationcalibration curve
Publication Date：2016-01-01
Pages：3( 18-20 )