在工厂中改进生产技术、降低成本的迫切要求下,过去操作过程中的分析方法,往往有许多不适用的地方。例如硫酸厂中一般用古典的龙格法作黄铁矿的分析,在时间上太不经济,远不能与生产相配合。利用了燃烧法后,原来一天才能做出结果的工作,在一两小时内就可以完成了。此外,在铅室或塔式法的硫酸厂以及硝酸厂中,对于氧化 Under the urgent requirement of improving production technology and reducing costs in factories, there are often many unsuitable places for analysis methods in the past. For example, sulfuric acid plant generally used for the analysis of the Runge method for pyrite, in terms of time is not economical, far from being able to match with the production. After using the combustion method, the day before the results of the work can be completed within an hour or two. In addition, in the lead chamber or tower sulfuric acid plant and nitric acid plant, for oxidation