The method for determination of trace oxygen in propylene by gas chromatography was established.

This paper describes a real-time and on-line automatic testing equipment for trace moisture and trace oxygen in high-purity gas,the frame and performance characteristics of the equipment are discussed in detail,including hardware system,software systems,main specifications,the key technologies and innovations resolved in the research process.

Effects of micro-oxygen on quality of grape wine in aging;

The high purity nitrogen was inert diluents gas during preparing the micro-oxygen in nitrogen calibration gases,as a result the content of oxygen in nitrogen was important technical target.

The analysis method was introduced for micro-oxygen in nitrogen calibration gases in this paper,at the same time we have definited the suitable analysis conditions and precision.

The experiment method of preparing micro-oxygen in nitrogen calibration gases by gravimetric method was introduced.

The conditions and methods for the determinating of trace oxygen and hydrogen in metal materials by the impulse-heating inert gas fusion method are presented.