砷

Methods By real-time PCR, the damages of exon 5 and 8 of p53 gene were probed in 37 workers exposed highly to, 16 manager and logistic employees exposed less to an arsenic mill in Yunnan province, and also 25 local people who did not contact with any white arsenic in near past time. At the same time, the urinary total and organic arsenic of workers were detected.

选择云南某砒霜厂－线工人37例、管理和后勤人员16例和当地近期无毒物接触人员25例为研究对象，应用实时荧光定量PCR检测人群p53基因第5和第8外显子损伤，同时检测尿中总砷和有机砷含量，评价人群对砷的代谢转化与p53基因损伤的相关性。

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

The main problem of arsenic in the north part of Xinjiang is the endemic arseniasis. The endemic arsenniasis in the north part of Xinjiang is related to the exploitation of deep groundwater.

北疆砷的问题主要是地方性砷中毒，北疆地方性砷中毒主要与深层地下水的开发有关。

The content of arsenic in the anhydrous sodium arseniate product reached to 24%.

产品锑酸钠中锑含量在40％左右，碳酸钠中砷含量小于1.5％，砷酸钠中砷含量在24％以上。

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。

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。

Objective To investigate whether high-arsenic area and endemic arsenism area exist in Anhui province in China.

目的了解安徽省是否存在水源性高砷区及地方性砷中毒区，为地方性砷中毒防治提供依据。

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。

Abstract］objective: to explore the relationship between arsenism and trace elements in hair of arsenism patients caused by coal-burning, so as to provide bases for theoretical study, diagnosis, and intervention of arsenism.

目的：检测燃煤污染型砷中毒患者头发中微量元素含量，探讨其与砷中毒的关系，为砷的毒作用机制分析及辅助性诊断和干预提供参考依据。

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。

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。