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作者用丝状液晶体气-液相色谱层析法分析了印度新德里火力发电厂1983年1～12月排出的煤炭飘尘中多环芳烃的成分。从静电除尘器中收集到飘尘后,过400目筛,再用索氏萃取器以光谱纯的苯萃取24小时,在室温下通干燥氮气流使蒸发,得棕色提取物,溶于少量光谱纯苯中,-20℃保存供分析用。气-液相色谱层析的条件是火焰离子鉴定器,线性温度程序,色谱柱用大量丙酮和氯仿清洗后,充填以2.5％(W/W)BBBT,置270℃过夜。开始烘箱温度190℃,最后265℃,鉴定器温度270℃,注入器温度270℃,氮气流
The authors used filamentous liquid crystal gas chromatography - liquid chromatography analysis of the New Delhi coal-fired power plant in India from January to December 1983 discharge of coal dust particles in the composition of PAHs. After the fly ash was collected from the electrostatic precipitator, it was passed through a 400-mesh sieve and then subjected to spectroscopic pure benzene extraction for 24 hours using a Soxhlet extractor. The mixture was evaporated to dryness under nitrogen at room temperature to obtain a brown extract, which was dissolved in a small amount of spectral purity Benzene, -20 ℃ for analysis. Gas-liquid chromatography was performed on a flame ionization detector with a linear temperature program. The column was washed with copious amounts of acetone and chloroform and filled with 2.5% (w / w) BBBT at 270 ° C overnight. Begin oven temperature 190 ° C, final 265 ° C, applier temperature 270 ° C, injector temperature 270 ° C, nitrogen flow