硅酸盐态砷主要进入粘土矿物晶格。
Arsenic of silicate mainly comes into crystal lattice of clay minerals.
当前还难以确认有机态砷的化学结构。
However, chemical structure of organic arsenic in coal is still unclear currently.
由手铅、砷污染元素呈偏态分布，故采用偏态分布中的中位数法作了铅、砷自然背景值及含量的统计。
As lead and arsenic pollution element are skew distribution, statistics of a natural background value and a content of lead and arsenic are worked out using median method of skew distribution.
目的：对新疆奎屯地方性砷中毒病区水样中的砷进行价态分析，研究砷中毒的发病机理。
Objective: in order to analyse the valent state of Arsenic in water in KuiTun Xinjiang, and study the pathogenesis of arsenism.
采用氢化物原子吸收法测定样品中痕量砷，对于样品的前处理及采用氢化物法测定砷含量时，砷的不同价态及共存离子的影响，分别进行了探讨。
Determination of trace arsenic from water sample by hydride atom absorption, and effect of valence number of arsenic and varied coexisting ions on the determination were discussed.
结果表明，研究区土壤砷为正偏态分布，经高斯非线性转化后，符合二阶平稳假设。
The soil as of the study area was positive skew distribution, tally with second steps stable supposed, after Gaussian non-liner change.
但总体来看，汞主要以硫化物形态和残渣态存在。砷主要以硫化物形态存在。
It was also found that mercury in coal mainly occurs in bound-sulfide and residue, Arsenic mainly occurs in bound-sulfide.
但总体来看，汞主要以硫化物形态和残渣态存在。砷主要以硫化物形态存在。
It was also found that mercury in coal mainly occurs in bound-sulfide and residue, Arsenic mainly occurs in bound-sulfide.
应用推荐