砷

Contaminant cations such as calcium,magnesium,barium,strontium,and radium and anions such as fluoride ,nitrate,fulvates,humates,arsenate,selenate,chromate ,and anioic complexs of uranium can be removed from water by using ion exchange or adsoption onto activiated alumina.

具有污染能力的像Ca，Mg，Ba，Sr，Ra的阳离子，和像氟化物，硝化物，黄酸物，腐质酸物，砷酸盐，硒酸盐和铬酸盐的负离子以及像铀一样的负离子复合物可以通过离子交换和离子吸附从水中排除。

A comprehensive method for simultaneously detecting species of arsenic and selenium including arsenite As(III, monomethylarsonic acid, dimethylarsinic acid, arsenate As(V, selenocystine, selenomethionine and selenate Se(IV was developed with high performance liquid chromatography-hydride generation-double channel atomic fluorescence spectrometry (HPLC-HG-AFS).

建立了一种利用高效液相色谱-双通道原子荧光检测联用同时进行砷和硒形态分析的方法。

Were sufficiently known to classify it as semimetal.

到了18世纪的属性，金属砷，足以知道它分类为半金属。

But most governments, including the United States and the European Union, have not set legal limits on inorganic arsenic in food.

但是，大多数国家，包括美国和欧盟在内，都没有法律限制食品中无机砷的含量。

Taking a smeltery in Shenyang,Liaoning Province as research object,several alkali chemicals were added to increase the soil pH and reduce leaching toxicity of arsenic in soil impacted by heavy metals.

文章以沈阳某冶炼厂厂区旧址的重金属复合污染土壤为研究对象，通过向土壤中添加不同药剂，研究了不同碱性化学物质对土壤砷稳定化的效果。

Results ①Arsenicals caused inhibition obviously on HL-60 cells growth at the test concentrations,particularly in the groups of 2μmol/L,10μmol/L sodium arsenite,and the groups of 100 μmol/L,300 μmol/L sodium arsenate.

结果①两种无机砷化物对HL-60细胞生长具有抑制作用，特别是高浓度NaAsO2（2、10 μmol/L）和Na3AsO4（100、300 μmol/L）可明显地抑制HL-60细胞的生长

Results When sodium arsenite treatment and cigarette smoke solution treatment were used together or separately, protein expression of Bcl-2 decreased; Protein expression of Bax and the number of apoptotic cells increased.

结果 亚砷酸钠和香烟烟气溶液单独作用或者联合作用都能够使细胞Bcl-2蛋白表达减少、Bax蛋白表达增加、凋亡细胞数增加。

Sodium arsenite (NaAsO2), a potent human carcinogen, has not been clearly understood what its carcinogenesis is.

砷化钠(sodium arsenite； NaAsO2)是一种环境致癌毒物，目前对其致癌的机转仍不清楚。

The interactions were synergistic. Conclusion Sodium arsenite and cigarette smoke solution have interactions on protein expression of Bcl-2 and Bax. The interactions are synergistic.

亚砷酸钠和香烟烟气溶液对大鼠淋巴细胞的Bcl-2蛋白表达、Bax蛋白表达的影响存在交互作用，交互作用方式为协同作用。

Methods According to 2×2 factorial design, rat lymphocytes were divided into 4 groups: sodium arsenite treated group, cigarette smoke solution treated group, sodium arsenite and cigarette smoke solution treated group and control group.

按照2×2析因设计将大鼠淋巴细胞分为4组：亚砷酸钠单独作用组、香烟烟气溶液单独作用组、两者联合作用组和对照组。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。