Determination of Carbon Monoxide and Carbon Dioxide in Combustion Product of Black PMMA by Gas Chromatography
In the determination of micro carbon monoxide and macro carbon dioxide in the combustion product of black PMMA by gas chromatography,double gas path and double detectors testing method were established. Chromatographic column temperature was constant in the process of analysis. The gas was pre-separated by Porapak T column using loop for sample injection. Different components flowed into 5A molecular sieve column and Porapak N column by valve switching and column back flushing technology. CO was separated by 5A molecular sieve column and detected by FID detector after methanation with the catalysis of Ni;CO2 was separated by Porapak N column and detected by TCD detector. The standard curve with excellent linear relationship was determined by the peak area. The linear correlation coefficient was 0.999 9 and 0.999 6 for CO and CO2,respectively. Determination of the standard gas by this method,its relative error was less than 2%. The relative standard deviation of determination results was less than 1%(n=5). The method is suitable for the test of smoke toxicity.
gas chromatographycarbon monoxidecarbon dioxidecombustion product
NETL
NSTL
万方数据
维普
