查询词典 Zn

The plant growth and absorption of Zn and Cd by plants in the co-crop were studied in pot experiment with two ecotypes of Sedum alfredii Hance and a low-accumulating crop on heavy metals contaminated-soil.

本论文取得的主要研究成果如下：（1）土壤淋溶液测定结果表明，玉米和超富集东南景天套种能显著降低污染土壤Zn、Cd的淋溶。土壤水溶性Zn、Cd含量在种植植物后显著降低。

The extraction effects of Zn and Cd from chloride medium with primary amine N1923 and 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester are studied.

考察了伯胺N1923与中性有机磷类萃取剂DEH／EHP的混合体系在盐酸介质中对Zn和Cd的萃取效应，研究了萃取机理，并研究了此混合体系对Zn和Cd的分离。

Based on the experiment, the process of doping of Zn/InP Indued by continuous wave laser was analysed.

在实验的基础上，分析表面蒸发Zn的InP样品在连续激光诱导下掺杂Zn过程。

Tang Wen-Xia In order to find out the relationship between the structure and function of copper/zinc superoxide dismutase, and elucidate mechanism of the catalytic dismutation of 〓, we have designed and synthesized two new model compounds of Cu, Zn-SOD, and studied relationship of their structure, properties and biological activity.

为了阐明Cu，Zn-SOD酶活性中心结构和功能的关系，探讨其催化〓歧化作用机理，本文设计并合成了两种不同结构的Cu，Zn-SOD模型化合物及一系列有关化合物，对它们进行了深入研究。1。

SOD is existed in any aerobiccell. According to the metalion contained, SOD is devided into four types: Cu/Zn-SOD, Mn-SOD,Fe-SOD and Ni-SOD. Among the total, SOD is studyed more. SOD can catalyze·O_2~- to take place dismutation reaction.

人们发现所有需氧细胞中都存在SOD，按照所含金属离子的不同，SOD可分为四种类型，即：Cu／Zn-SOD、Mn-SOD、Fe-SOD和Ni-SOD，其中Cu／Zn-SOD研究的最多。

Optimum extraction conditions were selected by the condition experiments and the concentration of Cu, Pb, Zn in main components were also determined for revealing the distribution of the heavy metals in the suspended particulate matters. It was found that hydroxylamine hydrochloride (0.006 mol/L NH2OH·HCl+0.01 mol/L HNO3) can remove most of Mn oxides, and sodium dithionite 0.8 mol/L Na2S2O4

结果表明，0.006 mol/L NH2OH·HCl+0.01 mol/L HNO3萃取30 min可以单独萃取悬浮颗粒物中大部分的锰氧化物，0.8 mol/L Na2S2O4（pH=6.0）萃取40 min可以同时萃取铁、锰氧化物，而对非目的组分的影响较小；悬浮颗粒物对Cu、Pb、Zn重金属有明显的富集作用，其中Cu主要结合在悬浮颗粒物的有机质组分中，Pb主要富集在铁、锰氧化物中，锰氧化物和有机质对Zn的分布起主要的富集作用。

Carbonates also occupy an important component, with E271 from 5.9% to 27.57% and E272 from 6.67% to 38.20%. A few foraminifer fossils were found in the sediment cores. These sediments are rich in Cu, Pb and Zn which are fallout from hydrothermal plume with iron oxides.

热液桩的沉积作用，使Cu、Pb和Zn在沉积物中富集，Cu/Fe、Pb/Fe和Zn/Fe比值低于热液喷口处的颗杜物中值，Pb表现出在海水中运移距离较短或者只有少量Pb随热液柱扩散运移。

It was showed through field trials and pot trials that the content of Zn, Cu and Mn in cole was relational to the total content and bio-available content of that in soils respectively, and the content of As was relational to the total content and bio-available content of As in soils indistinctively, and the content of Cd, Ni, Pb and Cr in cole was under the measure limit.

田间试验和盆栽试验表明，植株中Zn、Cu、Mn含量分别与土壤的Zn、Cu和Mn全量和有效态含量有关，但植株中As含量与土壤T-As和B-As相关性不显著。

DSC-TGA thermal analysis and XRD characterization results demonstrate that Fe is precipitated as Fe3O4 during alkaline decomposition of jarosite. The contents of Fe, In and Zn in decomposition residue are 38.81%, 0.23% and 12.89%, respectively. After selective leaching of In and Zn with dilute HCl solution, the iron concentrates obtained from magnetic separation can be used as raw material for iron smelting.

DSC-TGA热分析和X射线衍射分析结果表明：在NaOH分解过程中，铁矾渣中的铁主要以Fe3O4形式沉淀入渣；分解渣中Fe、In和Zn的含量分别为38.81%、0.23%和12.89%；经稀盐酸选择性浸出铟和锌后，进一步磁选富集可作为炼铁原料。

In this thesis, seed germination and root elongation test, early growth test were performanced by chemical spiked (Cu, Zn, Pb and Cd; Phenanthrenen, Pyrene; and1, 2, 4-trichlorobenzene) in four types of soils (red load soil, meadow brown soil, chestnut soil and dark brown soil) using wheat, Chinese cabbages , tomatoes , turnip and scallion as plants: The toxicity of heavy metals Cu.

本文选择4类典型土壤（红壤、草甸棕壤、暗棕壤和栗钙土），以（小麦、白菜、萝卜、西红柿、大葱）为供试植物，进行了重金属（Cu、Zn、Pb、Cd）、有机氯、多环芳烃污染的植物种子发芽与根伸长抑制试验；植物早期生长试验研究；以草甸棕壤为供试土壤，进行了重金属（Cu、Zn、Pb、Cd）单一、复合污染条件下的蚯蚓急性毒性实验；以草甸棕壤、污染土壤和生物修复土壤进行蚕豆根尖实验和土壤原生动物实验。

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。