一、前言在近代有机化学的研究中,成分分析及结构测定的方法和仪器已普遍发展。对一个未知化合物的性质及结构的确定,已不必象过去那样需要很多的人力,花费很多的时间了。但由于人们在从化学上认识一个化合物时,还是希望首先能知道它的元素组成,特别是对已知结构化合物的验证上,使用元素分析方便得多,因而有机元素分析方法也得到迅速的发展。碳氢是有机化合物中最基本的组成元素,对它的 I. Preface In modern organic chemistry research, the methods and instruments of composition analysis and structure determination have been widely developed. The determination of the nature and structure of an unknown compound does not have to take as much manpower and time as it used to be. However, as people know a chemical compound, but also want to know its elemental composition, especially for the verification of known structural compounds, the use of elemental analysis is much easier, and thus the method of organic element analysis has also been rapid development . Hydrocarbons are the most basic constituent of organic compounds, to which it belongs