Tissue Free Water(TFW)of pine needles is separated out through azeotropic distillation of pine needles and toluene, Recovery ratio of TFW is 90%.
本文用生物样品与有机溶剂共沸蒸馏分离法对秦山核电厂附近秦山上松针中组织自由水氚进行测量。
The reaction was not suitable conducted under solvent-free condition, water formed during the reaction was removed by azeotropic distillation with toluene throughout the reaction.
相转移催化环烷基化反应不适合采用无溶剂法来进行，对反应过程中的溶剂效应进行分析后选择甲苯作为溶剂和带水剂。
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