亚砷酸

Copper arsenite prepared from waste acid containing arsenic was applied in copper electrolyte purification.

利用含砷废酸制备亚砷酸铜，并将所得亚砷酸铜应用到铜电解液的净化。

Aims: To investigate the roles of arsenious acid (As2O3) on inducing differentiation of hepatoma cell line BEL-7402 and to provide experimental data for clinic utilization.

目的：研究亚砷酸(As_2O_3)是否有诱导肝癌细胞分化的作用并探讨其可能机制，为亚砷酸作为新的诱导分化剂用于肝癌治疗提供科学的实验依据。

When cathodic potential is negative enough,arsenic acid, arsenious acid and element arsenic co-discharge and AsH3 is evolved.

在铜电解液净化工序中，砷酸优先于亚砷酸析出砷化氢，当阴极电势足够负时，三者共同放电析出砷化氢。

The traditional process of Cu and As separation employs an insoluble anode. When arsenic acid is reduced in the cathode,simultaneously arsenious acid is oxidized in the anode.

得知：在采用不溶性阳极电积脱铜脱砷传统工艺流程中，砷酸在阴极发生还原反应形成亚砷酸，亚砷酸又与阳极产生的氧气发生氧化反应形成砷酸。

The treatment of cancer liquid in thorax by using Chinese traditional medicine and arsenious acid is better than only using As2O3 in recent curative effect.

中药配合亚砷酸胸腔内注射治疗癌性胸水，近期疗效优于单纯应用亚砷酸。

Oxygen that is evoluted in the anode and arsenic acid will have oxidation-reduction to produce arsenic acid. It can evolute a great amount of hydrog...

在铜含量较低时阴极析出大量氢气，阳极析出氧气，极大地浪费了电能；在析出氢气的同时逸出砷化氢，砷酸、亚砷酸在阴极直接发生还原反应也产生砷化氢气体，从而严重地污染了环境。

Results With different concentration of sodium arsenite 0.5 ～ 5.0 μmol/L, the skin fibroblasts were markedly stimulated, and a dose effect relationship was observed.

结果与对照组比较，皮肤成纤维细胞经不同剂量的亚砷酸钠诱导后，吸光度值均有改变，存在剂量效应关系（P〈0.01）。0.5～5.0μmol／L浓度的亚砷酸钠对皮肤成纤维细胞有明显的增殖作用，而10μmol／L浓度的亚砷酸钠产生明显的毒性作用。

The results demonstrate that a greatly increased bioavailability of As under the flooded conditions is the main reason for an enhanced As accumulation by flooded rice, and growing rice aerobically can dramatically decrease the As transfer from soil to grain.

这两种硅运输蛋白都在根部表达，其中一种称为Lsi1的蛋白是亚砷酸盐进入水稻的门户，而另一种称为Lsi2的蛋白控制着从根部到茎再到谷粒的流动。这组研究者还发现硅酸—含有硅、氢和氧—会干扰亚砷酸盐的摄取。他们提出，增加土壤中可利用的硅，可能会减少从土壤和灌溉用水到水稻的砷的运输。（生物谷Bioon.com

This anion pump is composed of two subunits, the catalytic 63KDa ArsA, a hydrophilic protein, when purified, exhibits oxyanion-stimulated ATPase activity, the hydrophobic 45. 5KDa ArsB protein, located in the inner membrane of E. coli, is the putative anion translocating channel and also serves as the anchor for ArsA to attach on the membrane.

ArsATP酶由水溶性的63KDa的ArsA蛋白和膜整合的46KDa的ArsB蛋白组成，ArsA蛋白是催化亚基，具有亚砷酸盐和亚锑酸盐激活的ATP酶活性，ArsB蛋白则构成转运亚砷酸盐和亚锑酸盐的阴离子通道，同时作为ArsA蛋白在膜上的结合位点。

The removal of arsenic from solution has relied mostly on precipitation and adsorption processes and it has been considered that arsenic is the oxidation state that leads to the most effective removal by precipitation since the simple metal arsenates generally have lower solubility than the arsenites, and also arsenate is more strongly adsorbed on certain substrates, but this is pH dependent.

从溶液中去除砷主要依赖沉淀和吸附过程，并且要考虑+5价砷是氧化态，会导致通过沉淀最有效去除砷，因为简单的金属砷酸盐比亚砷酸盐一般有更低的溶解度，并且砷酸盐在特定情况下有更强的吸附能力，但是这取决于 pH 值。

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。