1) helium family element
氦族元素
2) platinum group element
铂族元素
1.
Neutron activation analysis or platinum group elements in geological materials;
地质样品的铂族元素中子活化分析研究
2.
Two Co-rich seamount crust reference materials(MCPt-1 and MCPt-2) for platinum group elements(PGEs) with ultra-fine particle size were prepared.
2个富钴结壳铂族元素(PGEs)标准物质MCPt-1和MCPt-2的原样分别由中国和俄罗斯取自中太平洋海山和西太平洋麦哲伦海山区。
3) platinum group elements
铂族元素
1.
Comparison of platinum group elements (PGE) between Jianchaling and Jinchuan nickel sulfide deposits and its significance;
煎茶岭与金川硫化镍矿床的铂族元素地球化学特征对比及其意义
2.
Geochemical characteristics of Platinum group elements of the sulfide nickel ores and related rocks in Jianchaling, Lueyang county, Shannxi province, China and their implication for genesis;
煎茶岭硫化镍矿床的铂族元素地球化学特征及其意义
4) main group element
主族元素
1.
The β2-isomer Keggin structure heteropolytungstoarsenate complexes containing main group elements have been prepared and characterized by ICP,UV,IR,XPS,XRD and 183W NMR.
合成了4种主族元素取代的钨砷杂多配合物,通过ICP和TG曲线确定其通式为:K11,12〔M(AsW11O39)2〕。
2.
The results show that the new compounds are of Keggin structure,and the main group elements have already entered into the skeletons of new compounds.
结果表明,新配合物具有典型的Keggin结构,且主族元素进入到配合物的骨架中。
5) PGE
铂族元素
1.
Study on PGE Remobilization in Jinbaoshan PGE Deposit;
金宝山铂族元素矿床铂族元素的热液活动研究
2.
PRE-EARLY CAMBRIAN BLACK ROCK SERIES IN CHENGKOU DISTRICT,CHONGQING:(1)PGE MINERALIZATION POTENTIAL REASSESSMENT;
重庆城口地区早前寒武系黑色岩系研究:(1)铂族元素成矿潜力评估
3.
An improved Carius tube technique for digesting geological samples in the determination of PGEs and Re by ICP-MS;
改进的卡洛斯管溶样等离子体质谱法测定地质样品中低含量铂族元素及铼的含量
6) group-V elements
V族元素
1.
After summarizing in detail the research on p-type doping with group- V elements including N, P and As, this article describes the technology of codoping and presents some areas where more work is needed.
概述了ZnO薄膜V族元素氮、磷、砷(N、P、As)p型掺杂的研究进展,分析对比了3种元素的掺杂和p型转变特性,简单介绍了共掺杂技术,提出了有待进一步研究的问题。
补充资料：氦3-氦4稀释制冷
分子式：
CAS号：
性质：3He-4He混合液在0.867K时出现界限分明的上下两相，上相3He含量高称浓相，下相4He含量高称稀相。稀相中4He的熵比3He的熵小得多，浓相中4He的熵又比稀相中3He的熵小得多。3He从浓相进入稀相或从稀相中抽走都会发生降温。用泵把3He-4He混合室与一个蒸发器和一个冷凝器连接起来就组成稀释制冷器。用抽气泵不断地把蒸发器中的3He抽走，蒸发过程中3He带走大量热量。从蒸发器中抽走的3He经冷凝器液化后再回到混合室。用此法可获得0.0035～0.0055K的超低温。
CAS号：
性质：3He-4He混合液在0.867K时出现界限分明的上下两相，上相3He含量高称浓相，下相4He含量高称稀相。稀相中4He的熵比3He的熵小得多，浓相中4He的熵又比稀相中3He的熵小得多。3He从浓相进入稀相或从稀相中抽走都会发生降温。用泵把3He-4He混合室与一个蒸发器和一个冷凝器连接起来就组成稀释制冷器。用抽气泵不断地把蒸发器中的3He抽走，蒸发过程中3He带走大量热量。从蒸发器中抽走的3He经冷凝器液化后再回到混合室。用此法可获得0.0035～0.0055K的超低温。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条