气相色谱法测定一些有机化合物的生成热

Determination of Formation Heat for Organic Compou-nds by Gas Chromatography

本文首次用气相色谱法测定了几个同系列有机化合物的生成热。测定原理是根据有机化合物同系列中碳原子数一方面与生成热有线性关系,另一方面又与色谱保留值有线性关系,从而通过碳原子数将生成热与某一中间参数(与保留值有关)相关联,最后通过中间参数的测定来求得生成热。本文测定值与文献值基本一致,通过测定条件的优化,相信可以提高本方法的准确度。

The heat of formation for several homolog seriers of organic compounds has first been determined using gas chromatography method in this paper. The basic principle of determination is that the number of carbon atoms for homolog seriers on the one hand. is proportional to the heat of formation, on the other hand, proportional to the retention values,and therefor the heat of formation for the compound may be linked with certain intermediate parameters related to the retention values through the number of carbon atoms of the compound, so that the heat of formation can be obtained by determing the parameters. The paper shows that values determined is basically consistent with the literature ones. It is convinced that the accuracy for the method may be improved by optimizing testing conditions.