砷

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。

In this article, the author analyzed arsenic and selenium for drinking water at Xi'an peripheral locality 11 sampling point and found that the arsenic content in drinking water is lower in south and east of Xi'an. In Hu county area west of Xi'an arsenic content in drin king water is higher than other areas obviously and has achieved 0.047mg/L, approaching the mild pollution standard.

摘 要：通过对西安周边地区11个采样点饮用水中砷含量的调查分析，结果表明西安南部秦岭地区和西安东部的饮用水中砷含量较低，西安西部户县地区砷的含量明显高于其他地区，达到了0.047 mg/L，已基本上接近了轻度污染的标准。

The specific aim of this study is to estimate the prevalence of chronic arsenicism among residentsin the BFD-endemic area after the discontinuation of drinking artesian well water. Arsenic exposure and skin lesions including hyperpigmentation, hyperkeratosis and cancer were studied.

本研究的目的在於了解饮水改善后，乌脚病盛行地区的皮肤砷中毒症盛行率；探讨砷暴露指标和皮肤砷中毒症的关系；并评估调整其他危险因子后，累积神暴露量对皮肤瘤的影响。

The contents of inorganic arsenic in three kinds of algae are determined using this method. The result shows that algae have a low content of inorganic arsenic, complying with the results frequently reported in recent years, in which combination of some testing methods such as HPLC-ICP- MS and HPLC-HGAFS are used. Compared with these results, the results obtained from national standard methods are relatively high, due to the inapplicability of atomic fluorescence method.

并运用本法检测了海带、裙带菜、紫菜等三种海藻中的无机砷含量，发现海藻中的无机砷含量并不高，原国标方法检测的结果就相对较高，原因主要是原国标方法中的原子荧光法不适合于海藻类样品，检测结果与近来国内外报道较多的HPLC-ICP- MS、HPLC—HGAFS等联用技术检测海藻类物质中无机砷含量结果基本吻合，结果良好。

According to domestic and foreign reports, psoriasis patients with concurrent Bowen disease, arsenic keratosis, are in the use of arsenic-containing drugs due to its incidence on the total amount of arsenic and applications.

据国内、外报告，银屑病病人并发的Bowen病、砷角化病，均系使用含砷的药物所致，其发病率与应用砷的总量有关。

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％。

The results showed that there was arsenic pollution in soil around the piggery in which roxarsone has been used for a long period.

结果表明，长期使用洛克沙砷的养猪场周围的土壤及用饲喂过洛克沙砷的猪粪作肥料的土壤都存在砷污染。

Methods The selected microorganisms were cultivated at 37℃ in culture media with different concentration of sodium arsenite and counted by microscope, and arsenic content in bacteria was detected by ASA.

采用在培养基中加入不同浓度亚砷酸钠的方法研究各菌株对砷的耐受性，并在显微镜下进行细菌量计数，采用超低温捕获原子吸收分光光度仪测定菌体中砷含量。

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。

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。

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。