Quantitative Gas Analysis of Sulfur Dioxide in Nitrogen by Fourier Transform Infrared Spectrophotometer

摘要

A method for quantitative gas analysis of sulfur dioxide contained in nitrogen using the Fourier transform infrared spectrophotometer has been established. On account of the strong adsorption properties of sulfur dioxide, the measuring method adopted is one in which the sample is made to flow inside the cell and in the sampling system. Measurements were conducted with a total pressure of 3 atm of the sample gas and with a spectrophotometer resolving power of 0.5 cm exp -1 . This method has a range of application to sulfur dioxide concentrations ranging from 15% to 300 ppM, and the precision of analysis (2sigma) was 1.9%. (ERA citation 05:027542)