毛细管气相色谱法测定空气中的甲酸甲酯

采用活性炭采集空气样品,用甲醇解吸,经DB-200毛细管色谱柱分离,氢火焰离子化检测器检测,对空气中的甲酸甲酯的溶剂解吸气相色谱测定方法进行分析。本方法操作简便,方法灵敏度和精密度好,检出限低,适用于环境空气和工业废气中甲酸甲酯的监测分析。

First-principles Study of Adsorption and Dissociation of Methanol on the Pt（lO0） Surface

Using first-principles calculations, we studied the interaction of methanol with the Pt（100） surface based on generalized gradient approximation. We found that top sites of Pt（100） surface are the favored adsorptive positions in energy, and methanol molecule interacts with the Pt surface through oxygen atoms. Moreover, we also explored the possible dissociation pathways of methanol on the Pt surface, and suggested that the products of dissociation can be controlled by the external manipulation.

对含氮杂环类金刚烷胺工业废水树脂吸附的研究

本文采用LS-106、LS-200和XDA-1G三种型号大孔吸附树脂对金刚烷胺工业废水进行吸附研究。结果表明,采用XDA-1G型号吸附树脂,调节pH在8左右,吸附流速为1BV/h,吸附效果最好;并且采用甲醇解吸可以取得良好的再生效果。树脂的吸附效果与吸附流速和pH值都有密切关系。