以高氯酸锌为催化剂，环氧乙烷和低碳醇反应生成窄分子量分布的乙二醇单低碳醇醚，确定了适宜的工艺条件。
Reaction of lower primary alcohol and ethylene oxide was studied by zinc perchlorate as catalyst, and the products are narrow distributed. The suitable process conditions have been established.
用硝酸-高氯酸体系消解螺蛳和水葫芦样品，采用火焰原子吸收光谱法测定铜、锌、镍、铬，用石墨炉原子吸收光谱法测定铅、镉。
The samples of snail and hyacinth were digested by HNO_3-HClO_4, Cu, Zn, Ni, Cr were detected by flame AAS, and Pb, Cd by furnace AAS.
应用推荐