砷的

In this paper, contrast flask bacterial tests of high arsenic gold concentrate with arsenopyrite type and pure arsenopyrite mineral showed that the pyrite in the concentrate promoted the efficiency of dearsenication rate of the mineral, it was significantly higher than pure arsenopyrite.

通过毒砂型高砷金精矿和单矿物纯毒砂的氧化对比摇瓶试验，发现由于金精矿中黄铁矿的存在促进了矿物的脱砷效率，脱砷速度明显高于纯毒砂。

There are other metal arsenates, such as those of Fe,Zn,Cu, and Pb, which are less soluble and more stable in the neutral pH region than calcium arsenates or ferric arsenate, but these have not been seriously considered as disposal forms.

还有其他金属砷酸盐，例如那些 Fe、 Zn、 Cu和 Pb，比起砷酸钙或者砷酸铁来，这些物质在中性的 pH 值范围内很少是可溶并且更稳定的，但是这些物质没被以处理的形式认真慎重地考虑过。

The analysis of X—ray diffraction and scanning electronic microscope indicate that the arsenic powder obtained by this method is noncrystalline i.

本文提出了一种新方法，即在还原砷粉末的酸洗溶液中加入一种还原剂，防止形成β—锡酸，提高了砷粉末的除锡洗涤效果，获得的砷粉末纯度达99.2％。

Anhydrous sodium arseniate was got after stirring the liquid for 3 h at 55℃.

以锑精炼产生的含砷9％、含锑2％、含碱40％左右的二次砷碱渣为原料，在液固比为3：1、90℃以上搅拌浸出3h，过滤后得到砷锑渣和浸出液。

Objective: In order to analyse the valent state of Arsenic in water in KuiTun Xinjiang,and study the pathogenesis of arsenism.

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。

In our experimental results, we have transferred the GaAs solar cells from GaAs substrates onto the mirror-coated copper substrates with the base layer thickness of 1.5 μm. The photovoltaic performance of the orginal GaAs solar cell on a GaAs substrate was also measured. Under AM1.5G and without anti-reflective coatings conditions, it is found that the Jsc can increase from 12.6 mA/cm2 to 13.82 mA/cm2, while the conversion efficiency can improve from 7.91% to 8.53%. As a result, the enhanced Jsc and η data of the GaAs solar cells can be contributed by the AuGe/Au mirror between the GaAs solar cell and copper substrate.

在实验验证方面，本实验室将砷化镓太阳电池由砷化镓基板转移至铜基板上，在基极厚度1.5 μm、AM 1.5G、以及元件未披覆抗反射膜的条件下，短路电流密度可由12.6 mA/cm2提升至13.82 mA/cm2，增加9.7%，而转换效率则可由7.91%提升为8.53%，这结果显示当砷化镓太阳电池基极底部镀有金属反射层时，的确能适度地提升太阳电池的短路电流密度及转换效率。

The results indicate that in the water contenting about 5~40 mg/L arsenic, the efficiency of equilibrium removing arsenic could reach over 99% under condition of the testing.

实验表明，改性高岭土除砷材料具有良好的吸附除砷性能，在含As5~40 mg/L的水中，在实验条件下平衡除砷率可达99%以上。

To investigate the characteristics of arsenic methylating metabolism in population in coal-burning type arsenism endemic area and in control area, and to explore the difference between the two population.

目的 描述燃煤型砷中毒病区人群与非病区人群砷甲基化代谢的特征，比较两区人群砷甲基化代谢水平的差异。

Methods: Forty-three indiviuals who were exposed to arsenic more than 0.05mg/L in well water were chosen and the vein blood and morning urine was collected; The MTHFR C677 polymorphism was analyzed by PCR-RFLP method; Urinary inorganic and methylated arsenic were speciated by high performance liquid chromatography combined with hydride-generation atomic fluorescence spectrometry; Microbiological assay was used to estimate serum folate.

在砷中毒流行区选择饮水史清楚、饮水砷含量高于0.05mg/L的43名居民，采集空腹静脉血并收集晨尿，以聚合酶链反应－限制性长度多态性方法分析MTHFR基因C677T位点多态性，采用高效液相色谱－氢化物发生－原子荧光法检测尿中各种形态的砷，采用微生物法测定血清中叶酸水平。

Besides, entirely avoiding environmental protection of noxious Pb and As, so CR method is a benign environment method, where arsenic product is in the form of copper arsenate, tin product is the concentrate containing 70% Sn by use of adding NH4Cl to enrich tin in washing solution.

环境保护效果好，彻底消除了火法存在的铅毒和砷害，而且砷以用途广泛的砷酸铜形式产出，而锡在CR过程中添加适量氯化铵使锡富集于水洗液从而分离和富集成含Sn 70%的锡精矿。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。