1) donor element
施主元素
2) major element
主量元素
1.
Geochemistry of major elements from the Cretaceous Taoqihe Formation-Taipinglinchang Formation sandstones in the Sunwu-Jiayin Basin;
孙吴-嘉荫盆地白垩系淘淇河组-太平林场组砂岩主量元素的地球化学特征
2.
In this paper a method for the direct determination of the major elements(S,Cl,K,Ca)in brine sam- ples by the energy dispersive X-ray fluorescence spectrometry is reported.
用模拟卤水建立一套能量色散X射线荧光光谱法测定卤水中硫氯钾钙主量元素含量的方法。
3.
Major element characteristics of sandstones from different kinds of basin are a function of particular provenance types and tectonic environments, and provenance analysis of basins may be performed using major element diagrams.
一定的砂岩地球化学特征对应于特定的源区和构造环境,利用主量元素图解可以进行盆地物源分析。
3) 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。
4) major elements
主元素
1.
Supergenic geochemical characteristics of major elements in red soils in South China;
华南红土主元素表生地球化学特征
2.
The acid dissolution technique is characterized by low detect limit and available for measurement for all major elements but Si and ca.
报道了采用酸溶和碱熔分解硅酸盐岩石样品、用ICP-AES和ICP-MS联合测定岩石的主元素和微量元素的分析方法。
3.
The results of major elements analysis showed the contents of Al_2O_3,TOFE,CaO,MgO,K_2O,Na_2O and TiO_2 in fluvial-lacustrine facies and paleosols were apparently higher than that in paleo-mobile dune sands;contrary is the contents of SiO_2 for them;and thus these major elements constituted the similar half nine "element cycles".
主元素分析结果显示,该剖面MIS3层序中河流相、湖相和古土壤的Al2O3、TOFE、CaO、MgO、K2O、Na2O、TiO2含量明显高于古风成砂,而SiO2则相反,构成与沉积旋回相应的9。
5) major elements
主要元素
1.
Based on the detailed subzone division for Kujiertai and Wukuerqi uranium deposits, this paper studies the migration regularities of major elements in various subzones of interstratified oxidized zone.
对库捷尔太和乌库尔其铀矿床进行了详细的层间氧化带的分带研究,在此基础上分析了主要元素Si,Al,Fe在层间氧化带各亚带中的迁移规律。
6) Major Elements
主量元素
1.
Comparative Studies on the Sample Digestion Techniques of Alkali Fusion and Acid Dissolution in the Determination of Major Elements and Trace Elements in Stone;
石材主量元素和微量元素测定的酸溶与碱熔分解方法比较
2.
Distribution of major elements in marine sediments and water system was studied in this paper by using a modified sequential extraction procedure according to the methods of Tessier,BCR and so on.
在Tessier以及欧共体标准局BCR等前人顺序提取方法的基础上,采用一套改进的顺序提取法对海洋沉积物以及一些水系沉积物标准物质的主量元素进行逐步提取。
3.
The Ti normalized ratios of the major elements exhibit significant climatecontrolling patterns.
取自南海北部陆坡的ODP1144站沉积物中碎屑组分的主量元素含量表现出气候控制的变化特征,其中在间冰期,碎屑物质表现出较高的Al/Ti、K/Ti、Mg/Ti比值和较低的Na/Ti、Ca/Ti比值,而在冰期则正好相反。
补充资料：第Ⅰ主族元素
包括氢、锂、钠、钾、铷、铯和钫七个元素(见彩图)。其中只有氢是双原子分子组成的气体，主要显非金属性；其余六种元素都是固体，主要显金属性，通称碱金属。碱金属蒸气中大部分是单原子分子，只有少量双原子分子。氢和碱金属都是 s电子充填元素,外层电子同属ns1构型。金属氢的研制和锂键的发现，说明氢与碱金属元素还是相近的。
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