砷酸盐

含铁砷酸盐在碱性水泥投入混合时也不稳定。

Ferric arsenate is also not stable in alkaline cement cast admixes .

土壤吸附砷酸盐动力学的初步研究

A primary study on kinetics of arsenate adsorption by soils

其中以IAA抑制红细胞的乳酸生成和氧耗的效应最强，NaF次之，亚砷酸盐最弱。

The inhibition of lactic acid production and oxygen consumption was the strongest in the case of iodoacetic acid ( IAA ), with sodium fluoride ( NaF ) ranking next , and arsenite third .

硫化物矿床氧化带砷酸盐矿物的地质找矿意义

Geological significance of arsenate minerals in oxidation zone of sulphide deposits

两种砷酸盐均可引起染色体畸变。

Chromosome aberrations were induced with both arsenic compounds .

光致转化是影响水中亚砷酸盐垂直分布差异的一个因素。

Photo-transformation is one of important factors affect-ine the vertical distribution of arsenite .

亚砷酸盐对小鼠细胞遗传学效应的实验研究

Studies of cytogenetic effects of sodium arsenite on mouse bone marrow cells in vivo

离子色谱法测定饮用水及底泥中砷酸盐和亚砷酸盐

Determination of Arsenate and Arsenite in Drinking Water and Bottom Mud by Ion Chromatography

三羟甲基氨基甲烷砷酸盐单晶的研究

Tri ( hydroxymethyl ) aminomethane arsenate single crystal

单斜铜泡石&云南东川发现的一种含水的铜的砷酸盐新矿物

Clinotyrolite & a new mineral of the hydrous copper arsenate discovered in dongchuan , Yunnan

广西德保铜锡矿床氧化带产出的砷酸盐矿物

Arsenate minerals occurred in the oxidized zone of the Debao Cu-Sn ore deposit in Guangxi

最近，水稻砷酸盐还原酶基因已经被克隆和表征。

Two rice arsenate reductase genes ( OsACR2s ) have been cloned and characterized recently .

文章提供了这16种砷酸盐矿物的矿物学参数，并对该类矿物的形成条件进行了初步的探讨。

Finally , the paper makes a preliminary discussion on the formation conditions of arsenate minerals .

另外我们知道，在某些控制剂量下，亚砷酸盐有治疗价值。

In addition , we know that under certain controlled doses , arsenite has therapeutic value .

关于砷酸盐矿物的初步研究

Preliminary studies on arsenate minerals

几种土壤对砷酸盐的吸附

Adsorption of arsenate by soils

GB/T4701.4-1984钛铁化学分析方法过硫酸盐-亚砷酸盐容量法测定锰量

Methods for chemical analysis of ferrotitanium & The persulfate-arsenite volumetric method for the determination of manganese content

加入脂肪酸和羟基取代的脂肪酸，可不同程度地加速亚砷酸盐的反应。

The arsenite reactions can be variously accelerated by the addition of aliphatic acids and hydroxy-substituted aliphatic acids .

根据砷酸盐矿物的组合类型可较快速地确定原生矿床（体）的工业类型和找矿方向。

They may help to define the industrial type of primary deposit and prospecting by the association type of arsenate minerals .

研究试验表明：（1）高温焙烧后废渣中的砷转化为高价态的化合物，利用传统固砷技术，砷以难溶的砷酸盐形式得以沉淀；

Test results showed that ( 1 ) Arsenic was transformed into arsenate compounds after a high temperature roasting , and precipitated .

对我国产出的铀酰砷酸盐矿物的矿物学特征、形成环境和环境矿物学意义进行了较系统的综合论述。

Mineralogical characteristics , formation environments and environmental mineralogical significance of uranium acyl arsenate minerals in China are discussed systematically in this paper .

在与大气和游离氧接触的氧化带中，常形成砷酸盐，而且砷与氢氧化铁一起沉淀。

The arsenate is usually formed in oxidation zones in contact with the atmosphere and free oxygen , and arsenic will precipitate with ferric hydroxide .

本文讨论了铁、钙和钡的砷酸盐在水环境中的溶解度与稳定性，着重分析了砷酸盐在水中发生不一致性溶解与稳定性的关系。

The solubility and stability of Fe , Ca and Ba arsenates were discussed . Especially the relationship between arsenate stability and incongruent dissolution in water was analyzed .

砷酸盐矿物在世界上已发现达160余种之多，但在我国对其发现和研究得较少。

There are over 160 known species of arsenate mineral in the world , but only a small fraction of them have been found and studied in China .

砷对水环境的污染会极大地危害人类的健康，而水环境对砷酸盐的吸附和对亚砷酸盐的氧化又可以明显降低砷的生物有效性。

Arsenic contamination of the water environment will greatly endanger human health , and the adsorption of arsenate and arsenite oxidation can significantly reduce the bioavailability of arsenic .

亚砷酸盐是稻田土壤中砷的主要存在形式，而木质部把营养从根部运输到植株。

Here we report that two different types of transporters mediate transport of arsenite , the predominant form of arsenic in paddy soil , from the external medium to the xylem .

为了解煤燃烧过程中痕量元素砷的释放行为、富集规律与控制因素，对贵州高砷煤和加入不同含砷酸盐的平顶山烟煤进行了沉降炉燃烧实验。

For understanding the enrichment and controlling factors of trace element As in coal combustion , experimentize coal combustion on drop furnace with Guizhou lignite coal and Pingdingshan bituminous coal adding different arsenide .

同时，以传统方法种植水稻，往往需要灌溉整片农田，这种方式更容易产生水解砷化合物亚砷酸盐，并在水稻植株中传输。

And the traditional methods of growing rice , which often involve flooding a field , encourage formation of a soluble arsenic compound , arsenite , that is readily transported by the rice plant .

在亚砷酸盐处理中，并且低硫预处理的水稻根系中亚砷酸盐积累量低于高硫预处理，但低硫预处理的水稻地上部中亚砷酸盐浓度显著高于高硫预处理的水稻地上部。

In the arsenite exposure treatment , low sulphate-pretreated rice accumulated less arsenite than high sulphate pretreated plants , but the arsenite concentrations in shoots of low sulphate pretreated rice were higher than those of high sulphate pretreated .

砷酸盐矿物是主要产出于硫化物矿床氧化带中的次生矿物，在自然界中已发现250多种，我国目前仅发现该类矿物38种。

Arsenate minerals are the secondary minerals , which are mainly formed in the oxidation zone of sulphide deposits . More than 250 arsenate minerals have been identified in nature , but only 39 arsenate minerals in China .