液氧中痕量烃的测定方法

Determination Method of Trace Hydrocarbon in Liquid Oxygen

为了准确测定液氧中危险杂质痕量烃的含量。应用气相色谱法,建立了液氧中痕量烃的测定方法。该方法的相对标准偏差小于0.81%(n=5),回收率99.4%~100.4%。该方法具有分析耗时少,操作简便的优点,作为控制液氧质量的分析方法,对指导生产工艺的安全性和稳定性起到了保障作用。

The trace hydrocarbons were dangerous impurities in liquid oxygen,and in order to were accurately determined.Application of gas chromatography method,determination method of trace hydrocarbon in liquid oxygen was established.The RSD of the method were less than 0.81%(n=5),and the recoveries were 99.4%~100.4%.And this method has the advantages of less analysis time and simple operation.As an analytical method to control the quality of liquid oxygen,this method can guarantee the safety and stability of the production process.