查询词典 arsenate

In this paper, the main work has been focused on the rare reported arsenomolybdates, and nine novel compounds have been synthesized. Sandwich arsenomolybdates:(NH_4)_(12)[Cr_2AsMo_7O_(27_2]·11H_2O (1)(NH_4)_(14)[Cu_2AsMo_7O_(27_2]·13H_2O (2) Double sandwich arsenomolybdates:(NH_4)_(12)Cu(H_2O)_4[As_2Fe_6Mo_(22)O_(85)(H_2O)]·19H_2O (3)(NH_4)_(15)[As_2CoFe_5Mo_(22)O_(85)(H_2O)]·16H_2O(4)(NH_4)_(14)Mn_(0.5)[As_2Fe_5MnMo_(22)O_(85)(H_2O)]·22H_2O(5) Cagelike arsenomolybdate:(NH_4)_(11)[AgAs_2Mo_(16)O_(54)]·9H_2O (6) Organic-inorganic molybdenum arsenate complexes:CuAs_6Mo_6O_(30{[Cu_4]_3[CuAs_6Mo_6O_(30)]}_2·6H_2O (7),[Cu_2]_3[As_3Mo_3O_(15)]_2·2H_2O (8)(NH_4)_(10){Cu(H_2O)_4}[AsMo_6O_(21)(O_2CCH_3)_3]_2·12H_2O (9)All of the above polyoxomolybdates were characterized by IR spectroscopy, TG-DSC, elemental analysis, and single-crystal X-ray analysis to identify their structures and chemical compositions.

本文选择目前报道尚少的砷钼杂多化合物为研究重点，合成了不同结构类型的九个新的杂多化合物：单夹心化合物：(NH_4)_(12)[Cr_2AsMo_7O_(27_2]·11H_2O(1)(NH_4)_(14)[Cu_2AsMo-7O_(27_2]·13H_2O(2)双夹心化合物：(NH_4)_(12)Cu(H_2O)_4[As_2Fe_6Mo_(22)O_(85)(H_2O)]·19H_2O(3)(NH_4)_(15)[As_2CoFe_5Mo_(22)O_(85)(H_2O)]·16H_2O(4)(NH_4)_(14)Mn_(0.5)[As_2Fe_5MnMo_22_O_(85(来源：AbcccBC论文网www.abclunwen.comH_2O]·22H_2O(5)笼状结构化合物：(NH_4)_(11)[AgAs_2Mo_(15)O_(54)]·9H_2O(6)有机配体修饰的化合物：CuAs_6Mo_6O_(30{[Cu_4]_3[CuAs_6Mo_6O_(30)]}_2·6H_2O(7) [Cu_2]_3[As_3Mo_3O_(15)]_2·2H_2O(8)(NH_4)_(10){Cu(H_2O)_4}[AsMo_6O_(21)(O_2CCH_3)_3]_2·12H_2O(9)对上述新化合物进行了瓜光谱分析、元素分析、热分析和X-射线单晶衍射测试，确定了它们的组成和结构，对部分化合物还进行了UV-vis及荧光光谱分析和循环伏安表征。

Dissimilatory arsenate-respiring prokaryotes can reduce As to As,chemoautotrophic arsenite oxidizers and heterotrophic arsenite oxidizers can oxidize As to As.

砷是一种有毒元素，其毒性早在2000多年前就被人们所认识和利用。

Methods Male New Zealand white rabbits were exposed to pentavalent arsenate and trivalent arsenite 5 mg/L for 18 weeks, respectively. Levels of thioredoxin, protein and non-protein sulfhydryl and the activity of thioredoxin reductase and glutathione reductase in liver, and the levels of inorganic arsenic, monomethylarsonic acid and dimethylarsinic acid in blood, urine, and hair were measured after that.

家兔以自由饮水方式慢性暴露于无机3价砷及5价砷，18周后，测定肝脏组织中蛋白巯基、非蛋白巯基、硫氧还蛋白水平，以及硫氧还蛋白还原酶、谷胱甘肽还原酶活性，同时检测血、尿及毛发中无机砷及其代谢产物甲基砷和二甲基砷。

For the propose of finding high energy mid-infrared laser output, a compound cavity kalium titanyl arsenate optical parametric oscillator pumped by an electro-optic Q-switched flash-lamp-pumped 1064nm Nd:YAG laser was experimentally studied.

为了得到高能量中红外激光输出，对电光调Q灯抽运1064nm Nd： YAG抽运复合腔砷酸钛氧钾光学参变振荡器作了实验研究，在工作频率1Hz时得到OPO输出单脉冲能量36mJ，信号光脉宽10ns，闲频光波长3407nm，能量11mJ。

The affecting factors of removal of arsenate As(Ⅴ by bone char were studied in batch and column experiments. The results show that the performance of bone char adsorbing As from drinking water is stable after adsorption—desorption—regeneration—re-adsorption cycles.

摘 要：采用骨炭作吸附剂，通过静态和动态吸附试验，研究饮用水中砷去除的效果及其影响因素，以及骨炭反复吸附—解吸—再生—再吸附后骨炭性能的稳定性。

The removal of arsenic from solution has relied mostly on precipitation and adsorption processes and it has been considered that arsenic is the oxidation state that leads to the most effective removal by precipitation since the simple metal arsenates generally have lower solubility than the arsenites, and also arsenate is more strongly adsorbed on certain substrates, but this is pH dependent.

从溶液中去除砷主要依赖沉淀和吸附过程，并且要考虑+5价砷是氧化态，会导致通过沉淀最有效去除砷，因为简单的金属砷酸盐比亚砷酸盐一般有更低的溶解度，并且砷酸盐在特定情况下有更强的吸附能力，但是这取决于 pH 值。

The addition order of arsenate and chromate influences their uptakes to a certain extent, especially on the surface of hydroxy-Fe-montmorillonite complex.

竞争吸附实验的砷酸根、铬酸根吸附量均高于对其单阴离子的吸附量，此现象在复合体表面最为明显，说明复合体具有独特的阴离子吸附性能。

Besides, entirely avoiding environmental protection of noxious Pb and As, so CR method is a benign environment method, where arsenic product is in the form of copper arsenate, tin product is the concentrate containing 70% Sn by use of adding NH4Cl to enrich tin in washing solution.

环境保护效果好，彻底消除了火法存在的铅毒和砷害，而且砷以用途广泛的砷酸铜形式产出，而锡在CR过程中添加适量氯化铵使锡富集于水洗液从而分离和富集成含Sn 70%的锡精矿。

Many test parameters proposed in these methods have widely accepted in the literature for sample pretreatment, tem-perature, enzyme dose, pH, and reaction time. This study used sodium arsenate (Na2HAsO4E7H2O) and NIST 2710 soil as the standards to investigate the effect of mixing intensity, liquid to solid ratio, extraction time, and extract pretreatment methods for the determination of bioavailability.

文献中对於体外试验操作参数与程序，如样品前处理、温度、酵素添加量、胃肠相pH值与反应时间等参数已渐趋一致，本研究针对尚未深入探讨之重要参数进行试验，以砷酸钠(Na2HAsO4.7H2O)与标准土让(NIST 2710 soil)，探讨蠕动强度、液固比、小肠相萃取时间以及萃取液前处理方式对生物有效性之影响。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。