The author of this article has been engaged in the analysis and research of gas chromatography in 1975. In 1979, he first modified the capillary chromatographic device on domestic instruments for the first time, drawn the glass capillary column and applied the fixing solution, and achieved success. In the past 30 years, the author has done a lot of examples in gas chromatography, published more than 40 scientific papers in domestic and foreign magazines, and was elected as the first director of the Jiangsu Provincial Analysis and Testing Association, and a member of the Chinese Society of Chromatography and Mass Spectrometry.
Men'S No Blade Electric Trimmer,Men'S Beard Shaver,Callus Remover Machine For Feet,Foot Dead Skin Remover Electric
Ningbo Chuangxiang Electrical Appliance Co.,Ltd , https://www.hshaircurler.com