1)  spatial distribution
元素空间分布
2)  element
元素
1.
Determination of impurity elements in pure copper by constant current electrolysis-ICP-AES;
恒电流电解-ICP-AES法测定纯铜中杂质元素
2.
Simultaneous Determination of 14 Elements in Vegetables by ICP-MS with Microwave Digestion;
微波消解ICP-MS法同时测定蔬菜中14种元素
3.
Determination of 16 mineral elements and acrylamide in barley tea samples produced in three different regions of China;
不同产地大麦茶中16种元素及丙烯酰胺含量分析
3)  elements
元素
1.
A Preliminarry Discussion on the Analysis Methods for Inorganic Elements Used in the National Investigation Program of Soil Pollution;
全国土壤污染状况调查样品元素分析测试技术探讨
2.
To Measure Variety Elements in the Soil and Mud by X-ray Fluorescence Spectrographic;
X射线荧光光谱法测定土壤及底泥中多种元素
3.
Concentration and distribution of elements in coals from DPR Korea;
朝鲜煤中元素含量及分布
4)  beryllium
Be元素
5)  As
As元素
1.
Releasing of As in Coal and Fly Ash of Chongqing Power Plant under Organic Acid Conditions;
重庆电厂炉前煤及飞灰中As元素在有机酸作用下的淋滤行为
6)  Chemical elements
元素
1.
The distribution and abundance of chemical elements in different parts of Navel orange in Fengjie County, China;
奉节脐橙不同器官元素含量分布特征
2.
study on the features of the contents,distributions and accumulations of 11 chemical elements in soils and vegetations was carried out in each of the subalpine meadow zone ,the mountain five-flowered herbosa meadow zone and the evergreen coniferous forest meadow of the Mountain Meadow Natural Reserve in Mt .
本文研究了各生态带土壤和植被中11种化学元素的含量、分布及生物积累特征。
3.
he contents of twenty four chemical elements of several main soil types in the Taklamakan Desert areas were measured and obtained the natural element background values of the soils for those chemical elements.
本文通过对塔克拉玛干沙漠地区几种主要土壤类型中24种化学元素含量的分析测定,搞清了土壤中各种元素的自然含量水平和分布特征,填补了塔克拉玛干沙漠地区土壤元素背景值的空白,同时探讨了影响本地区土壤元素背景值的各种因素。
参考词条
补充资料:稀土元素球粒陨石标准化分布型式
分子式:
CAS号:

性质:样品的稀土各元素含量除以球粒陨石相应元素的丰度值所得比值,称为稀土元素球粒陨石标准化值。将此数据投点于横坐标为按原子序数排列的各稀土元素、纵坐标为球粒陨石标准化对数值的图上,用直线依次连接各相邻元素的投点,得到的形状不同的曲线,称为稀土元素分布型式。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。