FT-IR 분석에서 NO2 연소가스와 수증기와의 상관성 분석을 통한 정량화방안 연구

초록

This study is to quantify NO2 combustion gases concentration of the polymer materials. FT-IR spectrum of polymer materials for railway car are used to determine the gases concentration generated by BS 6853 B.1. The characteristic wavelength ranges of water and nitrogen dioxide overlapped each other and the nitrogen dioxide dissolved in the water well. To solve the problem, I analyzed the spectrum results after mixing the known gases concentration of NO2 and water using gas dilution devices. As a result of its experiment, the spectrum area of NO2 is decreased 76% by dissolving in the water. Using calibration this consequence, the correlation coefficient between concentration and absorption area improved significantly. Therefore, prediction ability of calibration curve for the combustion gases concentration enhanced.