By using sulpho acid to dissociate samples, using spectrophotometric method to determine micro-chrome in drainage sedimentary is very easy and simple with low cost.
Palladium can be separated from polyxene by the process of resolving polyxene,removing nitrate,precipitating palladium,etc.The grade of pure platinum obtained from the process is more than 99.95%.
In 1960, Wang Shuizhao had just graduated from Peking University and was assigned to work at the Literature Research Institute of the Chinese Academy of Social Sciences.
Wang Shuizhao couldn't help but lean over to see Qian Zhongshu's notebook, but Qian Zhongshu mischievously closed the notebook and said he couldn't see it anymore, which made Wang Shuizhao really eager.