煤焦油中甲苯不溶物与灰分的连续测定

摘要

The analytical method is of extraction of toluene insolubles with organic solvent, continuous determination of ash in coal tar. The results show that the ashing process are simple and easy to operate, re- duce the number of sample spill caused by the re-analysis, shorten the analysis time and reduce environmen- tal pollution, show no significant difference compared with the GB analysis results.%用有机溶剂萃取分离后的甲苯不容物，连续测定煤焦油中的灰分。该方法灰化过程简单易操作，缩短了分析时间，与国标法分析结果对比无显著性差异。