Secondary Measurement Method for Carbon Blank value of Infrared Carbon and Sulfur Analyzer
A secondary measurement method for measuring carbon blank value by infrared carbon sulfur analysis is established.After the internal combustion furnace of the infrared carbon sulfur analyzer is maintained,use reagent with low blank value to reduce and stabilize the blank value.After the reduction and stabilization of the blank value treatment,the carbon blank value is measured after the primary calibration and secondary calibration of the carbon sulfur analyzer using the standard material.The results show that after secondary calibration,the mean value of carbon blank is-0.00002%,and the maximum value is 0.00008%.The influence of carbon blank on sample measurement is completely eliminated by the method of carbon blank secondary measurement.The method has good accuracy and high precision,and can be used to calibrate the blank value in the measurement of carbon elements by high frequency combustion-infrared carbon-sulfur analysis.
infrared carbon and sulfur analyzercarbonblank value
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