放射

An introduction to environmental level of transuranium elements and a review of the recent advance in radiochemical analyses of them are made.

本文介绍了超铀元素的环境水平，对它们的放射化学分析的进展进行了述评。

In a culture medium, the radiochemical purity of the labeling compounds kept (86±4)% within 2.5h.

细胞培养液中标记物的放射化学纯度在2.5 h中保持在(86±4)%范围内。

Activation analysis and non-radiometric method have been used to measure long-lived fission product nuclides. Their sensitivity is superior to that of traditional radiochemical analysis.

活化分析以及非放射的仪器分析方法被用来测量长寿命裂变产物核素，其分析灵敏度优于传统的放化分析法。

Results The corrected radiochemical yield was about 54%, and the chemical and radiochemical purity was above 95% by high-performance liguid chromatograph...

结果放射化学产率约为54％，用TLC法和HPLC法测定化学纯度均大于99％，放化纯度均大于95％，18F－FDG各项质量控制指标符合药典要求。

Department of Radiochemistry, China Institute of Atomic Energy, Beijing 102413, China

中国原子能科学院放射化学研究所，北京102413

Early in the 1950s, Professor Yang was the pioneer in developing fundamental radiochemistry and its application.

建国初期，在十分困难的条件下，他领导开展了放射化学基础研究和应用研究。

Professor Yang Chengzong is one of the founders of radiochemistry in China.

杨承宗教授是我国放射化学的奠基人。

Researching the adsorption of radioelements on container walls is very significant in radiochemistry.

在放射化学的研究中，研究放射性物质在容器壁上的吸附是一件非常有意义的工作。

Gas chromatography is an important tool for rapid c hemical separations in nuclear and Radiochemistry.

在核化学与放射化学研究中，气相色谱法是一种非常重要的快速分离工具。

It describes the state of interdisciplinary research in radiochemistry, tritium storage, semiconductor fabrication, integration into MEMS and other electronic devices, and much more.

它描述在放射化学，氚贮存，半导体捏造，进备忘录和其他电子仪器，等的综合内的跨学科的研究的状况

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。