砷的

2 The analysis step by 25.0mL sample lixivium, moved in the direction of arsenic in the bottle, plus 10 ml of hydrochloric acid and 10 ml of potassium iodide solution and 5 drop acid stannochlor solution, shake the place 10min, together with 2 g of arsenic-free zinc metal, immediately mounted a good lead acetate paper turns red cotton and mercury bromide from log that arsenic tube placed in the 25-38, f μh of the dark side, remove the test strip and standard mercury bromide a color not deeper than standard.

7.2 分析步骤取25.0mL样品浸泡液，移入测砷瓶中，加5mL盐酸、5mL碘化钾溶液及5滴酸性氯化亚锡溶液，摇匀后放置10min，加2g无砷金属锌，立即将已装好乙酸铅棉花及溴化汞试纸的测砷管装上，放置于25～30℃的暗处1h，取出溴化汞试纸和标准比较，其色斑不得深于标准。

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。

Results: The linear ranges for inorganic arsenic, monomethylarsonic acid and dimethylarsonic acid were all from 5.0 to 100.0 μg/L The detection limits of As(superscript 3+), As(superscript 5+), monomethylarsonic acid and dimethylarsonic acid were 0.05 mg/kg. The recoveries of the method were 78%-110%(n=6), and the relative standard deviations were

结果：本方法的三价砷、五价砷、一甲基砷和二甲基砷在5.0~100.0 μg/L范围内有良好的线性，方法的测定低限均为0.05 mg/kg；实验表明方法对不同海产品的回收率在78%~110%之间，相对标准偏差在3.0%~12.2%之间。

By analyzing principle, the investigating project was primarily determined. Then experiments of leaching with hot water, precipitation arsenic by lime milk, solution arsenic by sulfuric acid, reduction, cooling and crystalling white arsenic have been carried out and the optimum conditions of every step have been obtained.

在分析基本原理的基础上，初步确定了研究方案，按照方案分别进行了热水浸出、石灰乳沉砷、硫酸溶砷、还原、冷却结晶白砷等试验，得到了各个工序的最佳工艺条件。

Consequently the objectives of avoiding the generation of virulent arsine , eliminating the secondary arsenic pollution and waste of arsenic resource are resulted by the dregs.

3根据水文、地质的特点，因地制宜科学建含砷渣场，在渣场投加固砷和改性添加剂，可有效治理含砷废渣对土壤的污染。

The arsenic-removal dreg is high with main content As_2S_3 mass fraction 95.4%, which make the dreg is liable to be utilized.

从而有效避免了剧毒物AsH_3的产生、含砷废渣造成的二次砷污染、以及砷资源浪费。

Arsenic-alkali residue, being dangerous to the environment, is a solid waste of antimony production by pyrometallurgy. So it's of very importance to treat and utilize arsenic-alkali residue comprehensively, which can both eliminate the environmental pollution and recycle the resource of arsenic and antimony, with high social and economic benefits.

砷碱渣是火法炼锑加碱除砷过程产生的固体废物，砷碱渣的综合利用不但能消除废渣对环境的危害，而且可回收其中的有价金属砷和锑，因而具有显著社会效益和经济效益。

Results In the first two weeks there was no obvious difference of LD50 between test and control groups, but 12 weeks later, cells continuously exposed to low level sodium arsenite exhibited dramatic resistance to acute arsenite toxicity.

结果 短期诱导，细胞未表现出砷耐受性提高，经过12周NaAsO2诱导后，48 h急性砷毒性实验中，实验组细胞对急性染砷表现出明显的耐受性提高，实验组在各浓度下生存率都明显高于同步对照组。

The results show that the concentration of arsenic in blood of the arsenism mice is higher than that in the control mice.

用本法测定了慢性砷中毒小鼠红细胞中的砷含量，结果表明中毒组小鼠红细胞中砷含量显著高于对照组。

Sodium arsenite group and sodium arsenate group were made by 300 mg/L per day of sodium arsenite and sodium arsenate respectively. The mice were sacrificed after 10 months for liver function and pathologic examination. The expression of MMp-8, TIMP-2, Col-Ⅰ、Col-Ⅲ mRNA were detected with real time flourescence quantitative PCR. The result was controlled with 18s.

亚砷酸钠组和砷酸钠组给予普通饲料和砷溶液。10个月后处死小鼠，血清进行肝功能检测；苏木素－伊红染色部分肝组织；Trizol-酚－氯仿一步法提取小鼠肝组织总RNA，紫外分光光度法测定总RNA浓度及纯度，实时荧光定量PCR法测肝组织中MMP-8、MMP-2、Col-Ⅰ、Col-Ⅲ mRNA的表达，以18S基因作为质控。

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。