砷的

This article provides the synthesis methods of high purity Arsine by arse nic,zinc and sulfuric-acid.

介绍了用砷、锌和硫酸合成高纯砷烷的方法，产品纯度为99.995%，总收率为85%。

The research also reveals that it is difficult to get blocky metallic arsenic of industrial value by the method of electrodeposition.

因此在较低温度下实现无定形砷As粉末转晶形成块状金属砷As，具有重要的环境保护意义，同时，能源消耗较低。

Species of metallic deposits are quite complicated: Besides commonly-seen pyrite ,chalcopyrite and bornite, there exist varied copper-bismuth sulfosalt minerals(sandber}erite, Bi-tennantite, Bi-tetrahedrite, aikinite, wittichenite),tungsten-tin sulfidesand polymetallic sulfides.

金属矿物种类复杂，除常见的黄铁矿、黄铜矿、斑铜矿外，还有多种铜铋硫盐矿物（锌砷黝铜矿、铋砷黝铜矿、铋锑黝铜矿、针硫铋铅矿、硫铋铜矿）、钨锡硫化物（硫铁锡铜矿、硫钨锡铜矿）及多金属硫化物。

The toxicity of As(superscript 3+) and As(superscript 3+)+Se(superscript 4+) to Elodea nuttalli was studied.

以伊乐藻为试验材料，研究砷、砷＋硒离子对伊乐藻抗氧化酶系统的影响。

A great deal of wastewater was produced in the manufacturing of gallium arsenide wafers,and the main contamination was gallium arsenide particles in suspension.

砷化镓晶片生产过程中，产生大量废水，其中主要污染物是悬浮状态的砷化镓微粒。

Thus, Chinese current standards include 12 heavy metals and harmful substances in apple, such as lead, cadmium, hydrargyrum, abio-arsenic, chrome, arsenic, selenium, copper, fluorine, rare earth, nitrite, nitrate, and also the residue limit of 56 pesticides.

至此，我国现行标准中，共包含了苹果中铅、镉、汞、无机砷、铬、砷、硒、铜、氟、稀土、亚硝酸盐、硝酸盐等12种重金属和有害物质以及56种农药的残留限量。

Because it can protect environment from being polluted, and arsenic can be obtained in a form of innocuity.

其中真空脱砷法处理高砷硫金精矿能保护环境免受污染，同时使As作为对环境无污染产物析出，是一种理想的预处理方法。

One of the most insoluble arsenic compounds is lead chloroarsenate, Pb5(AsO4)3Cl,( the mineral form being mimetite) which has been studied in detail.

最难以解决的砷化合物之一是铅含氯砷酸盐， Pb5(AsO4)3Cl ，已经被详细研究。

The results suggested that the plant cell of pinna had been capable of self-improvement when it was intimidated by arsenic.

本文对砷和钙处理下蜈蚣草羽叶中砷、钙的亚细胞分布、超微结构变化及钙定位进行了研究。

The results of process mineralogy showed that copper mineral of zinc-lead-copper complex sulphide ore existes as chalcopyrite,aftonite-binnite,polybasite and boumonite;and it was relied mainly on chalcopyrite and then aftonite-binnite.

工艺矿物学研究结果表明会理锌矿含铜的铅锌硫化矿中铜矿物以黄铜矿、银黝铜矿-砷黝铜矿、硫锑铜银矿、车轮矿等矿物形式存在，并以黄铜矿为主，其次为银黝铜矿-砷黝铜矿系列矿物。

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。