期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
A Study on the Kinetics of the Europium Electrochemistry Reduction 1.The Polarization Properties of Europium Reduced at the Cathode
1
作者 邰德荣 凌小平 马栩泉 《Journal of Rare Earths》 SCIE EI CAS CSCD 1993年第1期19-24,共6页
This article studies the polarization properties of the cathode reduction of Eu in the Sm-Eu-Gd chloride system by using a constant potential method.As the feed concentration,temperature,and stirring rate of the syste... This article studies the polarization properties of the cathode reduction of Eu in the Sm-Eu-Gd chloride system by using a constant potential method.As the feed concentration,temperature,and stirring rate of the system change,the system can gradually turn from chemical polarization to concentration polarization,and there would be a higher limiting current.As to the effects of acidity,only at a rather higher pH there will be a typical polarization property.The study can give some bases for the Eu electroreduction technlolgy parameter selection. 展开更多
关键词 Standard potential Titanium electrode europium chloride Electrolysis reduction Polarization property
下载PDF
Effect of EuCl_3 on Hairy Root Growth of Cassia Obtusifolia and Production of Its Active Principle
2
作者 CHANG Zhen zhan 1, LIU Yun hua 2, LU Kuan ke 3, GUO De an 3, SHEN Xin 4, WANG Sha sheng 4, WANG Kui 3( 1. Department of Biochemistry & Molecular Biology Beijing Medical University, Beijing 100083, China 2. Department of Biology, Heiloujiang 《Journal of Rare Earths》 SCIE EI CAS CSCD 2000年第2期160-160,共1页
Treated with extremely low EuCl 3 (0 001, 0 01, 1 0 mg·L -1 ) in MS medium, the hairy root growth of Cassia obtusifolia was inhibited. The inhibition was strongest at the treatment with 0 001 mg... Treated with extremely low EuCl 3 (0 001, 0 01, 1 0 mg·L -1 ) in MS medium, the hairy root growth of Cassia obtusifolia was inhibited. The inhibition was strongest at the treatment with 0 001 mg·L -1 EuCl 3, and the dry weight of hairy roots was 22% lower than that of control. Treated with rather low EuCl 3 (10 mg·L -1 ) in Murashige and Skoog(MS) medium, the hairy root growth was enhanced, and the dry weight of hairy roots was 27% higher than that of control. In the each treatment with 0 001 to 1 0 mg·L -1 EuCl 3 in MS medium, the total content of six free anthraquinones was lower than that of control. While treated with 10 mg·L -1 EuCl 3, the total content of six free anthraquinones was 26% higher than that of control, 97% higher than the treatment of 1 0 g·L -1 EuCl 3. Treatment with 10 mg·L -1 EuCl 3 in MS medium enhances the growth of hairy root of Cassia obtusifolia and improves the total content and production of six free anthraquinones in them. 展开更多
关键词 rare earths europium chloride Cassia obtusifolia hairy root growth free anthraquinones
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部