论文部分内容阅读
概述稀有气体、永久气体以及低碳烃类气体等的分析检测,是近代工业和环境保护中的一个重要问题。随着生产和科研事业的迅速发展,我国已经开始广泛地采用色谱技术来解决这类课题。用气相色谱法分析上述气体,一般采用分子筛、硅胶和活性碳等作为分离柱。但这些吸附剂往往由于分离能力或柱寿命的限制,不能满意地应用。后来发展的高分子多孔小球虽然对某些气体有较好的分离能力,但对于复杂的多组分混合物仍需较繁杂的操作条件。近年来合成的碳分子筛对某些无机气体和低碳烃类的分离显示了良好的性能。这些新型固定相的发展使上述气体的分离效果有了显著的提高。
Overview Rare gases, permanent gases and low-carbon hydrocarbon gases, such as the analysis and testing, is an important issue in modern industrial and environmental protection. With the rapid development of production and scientific research, our country has begun to adopt the chromatographic technique extensively to solve such problems. Gas chromatography gas chromatography, the general use of molecular sieves, silica gel and activated carbon as a separation column. However, these adsorbents are often not satisfactorily applied due to their separation capacity or column lifetime. Later development of polymer porous beads, although some gases have better separation ability, but for complex multi-component mixture still need more complicated operating conditions. In recent years, the synthesized carbon molecular sieve shows good performance for the separation of some inorganic gases and low-carbon hydrocarbons. The development of these new stationary phases has greatly improved the separation effect of the above gases.