论文部分内容阅读
脉冲电加热惰性气氛熔化测定金属中气体,由于它有设备简单、操作简便和速度快等优点,所以很快地应用到气体分析实践工作中去。目前,国内已经有很多单位应用了这一分析技术。我单位结合实际情况,采用了脉冲加热与气相色谱联合,先建立了测定钽、铌金属中氧和氢的分析方法,经过不断的实践,又进行了一些改革:如缩小了加热室的体积和采用了不带盖的小石墨坩埚,用双气路和同一脉冲电源接双套电极,可交错使用。从而避免了坩埚脱气和做试样互相等待的空闲时间,
Pulse electric heating inert gas melting metal gas determination, due to its simple equipment, easy operation and speed advantages, it quickly applied to gas analysis practice to go. At present, many units in China have applied this analytical technique. My unit combined with the actual situation, using a combination of pulse heating and gas chromatography, first established a determination of tantalum, niobium and oxygen in the hydrogen analysis method, after continuous practice, but also carried out some reforms: such as reducing the size of the heating chamber and Using a small graphite crucible without cover, with double gas circuit and the same pulse power connected double sets of electrodes, can be staggered use. Thus avoiding the deaeration of the crucible and making samples waiting for each other free time,