ferrous ion      亚铁离子(35) 铁离子(16) 二价铁离子(4) 亚铁离子的(6)   亚铁离子      Satisfactory quality film was obtained in solutions containing 0. 3 - 2 g/L ferrous ion.      当磷化液中亚铁离子含量为0．3～2g/L时，可获得质量满意的磷化膜层。 短句来源      The optimum conditions are obtained, i.e. using sodium lactate as organic carbon source, initial pH value of 7, 3 g/L sulfate, ~ρ(COD)/ρ(SO~2- _4) of 1.45, ferrous ion free and blasting N_2. The semi-continuous experiment was carried out.      间歇式试验结果表明在以乳酸钠为有机碳源,pH值为7,接种污泥质量为20g,初始硫酸根质量浓度为3g/L,ρ(COD)/ρ(SO2-4)为1.45,不加亚铁离子及通入N2的条件下,硫酸根的去除率最高; 短句来源      Tea polyphenons and ferrous ion can form purple complex, its content is determined by spectrophotometer in 570nm and 540nm.      通过茚三酮比色发,以及茶多酚类物质能与亚铁离子形成紫色络合物,利用分光光度计分别在570nm和540nm处,对它们的含量进行了测定。 短句来源      The various factors affecting the removal of sulfate were investigated, including different carbon sources, initial pH value, amount of sludge inoculum, initial ~ρ(COD)/ρ(SO~2- _4) , ferrous ion and blast of nitrogen.      考察不同有机碳源、体系初始pH值、接种污泥质量、起始硫酸根质量浓度、初始ρ(COD)/ρ(SO2-4)、亚铁离子及通N2方式等因素对厌氧污泥还原硫酸根能力的影响。 短句来源      The results show that the rate and efficiency of CaO_2 oxidation are relative to the pH value and the amount of ferrous ion.      试验结果表明,CaO_2氧化的速度和效果与废水的pH值和亚铁离子投加量有关。 短句来源 更多          铁离子      The densities and viscosities for solutions of FeSO_4-Fe_2(SO_4)_3-H_2SO_4 were determined with density bottle and capillary viscosimeter at 294.75-341.15 K,0.1-0.8 mol/L of hydrogen ion and 0.1-0.8 mol/L of ferric and ferrous ion.      利用密度瓶和毛细管粘度计测量了在不同温度(294.75—341.15 K)、不同氢离子浓度(0.1—8 mol/L)和不同总铁离子浓度(0.1—0.8 mol/L)的FeSO4-Fe2(SO4)3-H2SO4溶液的密度和粘度。 短句来源      The reaction pathway in which OH radical generated from the interaction of Fe 2+ with H 2O 2 was investigated theoretically at the B3LYP/6-311G ** level. The role of ferrous ion in the radical generation was studied.      利用B3LYP方法 ,在 6 3 11G 基组下研究了气相中Fe2 +与H2 O2 作用生成OH自由基的反应途径 ,探讨了铁离子对生成羟基自由基所起的作用 . 短句来源      Based on the catalytic effect of ferrous ion in the oxydizing decolouration of methylene blue by hydrogen peroxide in a medium of pH=7 0, a new catalytic kinetic method is proposed for the determination of trace iron. The optimum conditions of the method has been obtained. The detection limit and the linear range are 7 91×10 -7 and 0～1 5 μg/(25 mL) respectively.      基于在pH =7 0的磷酸盐缓冲体系中 ,铁离子对过氧化氢氧化次甲基蓝褪色反应的催化作用 ,提出了动力学光度法测定痕量铁的新方法 ,研究了该方法的适宜反应条件 ,方法的检出限为 7 91× 10 - 7,线性范围为 0～ 1 5 μg (2 5mL)。 短句来源      f is the ferric ion, and the action of T. f is the oxidation of ferrous ion to ferric ion which has the catalytic oxidation activity.      氧化亚铁硫杆菌酸性铁离子溶液的脱硫起主要作用的是铁离子,细菌主要是起到一个将还原生成的亚铁离子氧化为有催化氧化活性的铁离子。 短句来源      The correlation of the densities and viscosities of mixed solutions with temperatures,concentration of hydrogen ion,concentration of ferric ion and concentration of ferrous ion was determined by the method of the least-square best fit.      利用最小二乘法分别拟合回归出了FeSO4-Fe2(SO4)3-H2SO4溶液的密度和粘度与温度、氢离子浓度、亚铁离子浓度、铁离子浓度的关联式。 短句来源 更多          二价铁离子      Under the varied experimental conditions initial ferrous ion concentration, temperature and inoculation amount, the ferrous ion concentration was examined, and the experimental data was simulated by computer to determine m, K and pb0 / .      利用细菌生长模型，确定了不同二价铁离子初试浓度、温度及接种量下的μ_m，K及ρ_b~0／Y。 短句来源      Under the varied experimental conditions of initial ferrous ion concentration, temperature and inoculation amount, the ferrous ion concentration was examined, and the experimental data were simulated by computer to determine μ m, K and ρ 0 b/Y. Furthermore, the influence of experimental conditions on these parameters was discussed. [      考察了不同二价铁离子初始浓度、温度和接种量时亚铁离子浓度的变化 ,从而确定了各实验条件下的 μm,K及ρ0b/Y值。 短句来源      Using the complex salt forming by ferrous ion with organic acid as reducing agen t in cellulose fiber indigo dyeing at room temperature,determine the K/S va lue,deposition of ferrous ions on fiber and reduction potential. Analyze and discus s the factors Fe(OH) 3,pH,organic acid and dyeing process which influence th e dyeing result,then get a reasonable dyeing process.      在碱性条件下 ,二价铁离子与有机酸形成的络合物作为还原剂 ,对靛蓝染料进行还原 ,再在室温下对纤维素纤维进行染色 ,以K/S值、铁含量、还原电位为测量标准 ,分析并讨论Fe(OH) 2 、pH值、有机酸、染色工艺等因素对染色效果的影响 ,制定合理的染色工艺。 短句来源      The process features,process criterion,preparation of plating bath,functions and control of additives,and production maintenance(including stabilization of ferrous ion,control of iron content in the deposit, control of bath pH and temperature,etc.) were respectively introduced.      对该工艺的特点、工艺规范、镀液配制、添加剂的作用及控制以及生产维护(包括稳定二价铁离子、镀层含铁量的控制、镀液pH和温度的控制等)分别进行了介绍。 短句来源   亚铁离子的      Response Surface Methodology (RSM) was employed to investigate the effect of TOC ratio of high molecular weight organic matter (HMWOM) to low molecular weight organic matter (LMWOM), the LMWOM concentration and hydrogen peroxide to ferrous ion molar ratio on COD removal during the treatment of sanitary landfill leachate with Fenton reagents.      利用响应面法研究了Fenton试剂处理卫生填埋渗滤液过程中诸因素对COD去除率的影响 ,如渗滤液中高分子量有机物 (HMWOM)与低分子量有机物 (LMWOM)的TOC比例、LMWOM浓度以及双氧水和亚铁离子的摩尔比 (H2 O2 /Fe2 + ) . 短句来源      Study on oxidation to ferrous ion by thiobaciiius ferrooxidans and its kinetics      氧化亚铁硫杆菌对亚铁离子的氧化及其动力学研究 短句来源      With computer simulating variation of ferrous ion concentration during the bacteria growth, this model can be used to determine the kinetic parameters of bacteria growth, and the influence of these parameters on bacteria growth can be predicted.      研究了以亚铁离子的氧化来表征氧化亚铁硫杆菌的生长过程 ; 利用该模型 ,通过计算机拟合 ,确定了模型中细菌生长动力学参数 ,并用该模型预示了最大比生长速率 μm,营养物饱和常数K及细菌的初始浓度与得率系数的比值 ρ0b/Y变化时对细菌生长的影响。 短句来源      The action mechanism of ferrous ion was studied.      并探讨了亚铁离子的作用机理。 短句来源      K application on soils low in K can also encourage the rice root to okidize a-naphthandne and ferrous ion, thus increasing the activity of the root.      （7）在低钾土壤上施钾，还能提高水稻根系对α—萘胺的氧化力、亚铁离子的氧化力，对稻根的活力也有明显的影响。 短句来源 更多            查询“ferrous ion”译词为其他词的双语例句   查询“ferrous ion”译词为用户自定义的双语例句     我想查看译文中含有：的双语例句 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法，我们为您准备了出自英文原文的大量英语例句，供您参考。   ferrous ion The multiple antioxidant activity of the polysaccharides was evidenced by significant reducing power, superoxide scavenging ability, inhibition of mice erythrocyte hemolysis mediated by peroxyl free radicals, and also ferrous ion chelating potency. 例句来源       In the presence of a ferrous ion catalyst, all the methanol extracts from the seaweeds show significantly lower peroxide values of the emulsion than the control, and that of a green alga shows the strongest antioxidant activity. 例句来源       Furthermore, the scavenging activity of 0.60 g/L wheat germ protein hydrolysates against superoxide radical is 75.40%; 0.50 g/L wheat germ protein hydrolysates exhibit 63.35% chelating effect on ferrous ion. 例句来源       The convection-diffusion equation (CDE) used to describe the mass transportation in porous media was solved by characteristic difference method to give the distribution of the concentration of ferrous ion in the ore column. 例句来源       The coal contained ferrous ion which would interfere separation of pyrite from coal by microbial flotation. 例句来源       更多                    Three different homogentisate oxidases have been isolated from the liver extracts of rate by starch electrophoresis. Similar results were obtained with relatively purified enzymes prepared according to a modification of the method described by Tokuyama.The electrophoretic mobility of homogentisate oxidase I surpasses that of serum albumin. The Michaelis constant of this enzyme has the value of 1.4×10~(-3)M for homogentisic acid. In the absence of ferrous-ion this enzyme preparation completely lo...             大白鼠肝脏尿黑酸氧化酶经丙酮,硫酸铵等步骤处理,再经过平板淀粉电泳的分离,此活力可以提高1000倍。利用平板淀粉电泳技术,由大白鼠肝脏中分离出三个具有尿黑酸氧化酶活力的酶蛋白。其中一个在电泳过程中移向正极,该部分酶制剂对反应系统中亚铁离子的要求比较严格,对尿黑酸的米氏常数等于1.4×10~(-3)M,高浓度底物有明显的抑制作用。第二个尿黑酸氧化酶亦趋向正极,但速度较慢,活力较低。第三个尿黑酸氧化酶的电泳位置接近负极端点,即使在没有任何辅因子参加的系统中亦具有一定水平的酶活力。后两个尿黑酸氧化酶对底物的米氏常数均为5.0×10~(-4)M,高浓度底物没有抑制现象发生。证明三个尿黑酸氧化酶催化同一个反应,而彼此的性质有区别,是一个具有多种分子形式的同工酶。本文对尿黑酸的自氧化以及影响自氧化的各种因子进行了分析讨论。 文摘来源          Pure ferrous ion and benzene diazonium fluoroborate will not initiate the polymerization of acrylonitrile, while a small amount of copper ion is present, the polymerization of acrylonitrile will proceed smoothly and its rates of the polymerization will obey the following relationship :The mechanism of the redox initiation may be represented as follows:The polymerization of acrylonitrile can be initiated by p-nitrobenzene diazonium fluoroborate with the pure ferrous salt containing no...             以苯重氮硼氟酸盐与亚铁盐在微量铜离子存在时能引发丙烯腈聚合,聚合速率服从:R∝[φN_2~+]~(1/2)[Fe~(++)]~(1/4)[Cu~(++)]~(1/4),氧化还原引发历程为: Fe~(++)+Cu~(++) Fe~(+++)+Cu~+ φN_2~++Cu~+→φ·+N_2+Cu~(++) φ·+M→φM·→φMM·…该历程符合上述动力学关系。但使用对硝基苯重氮硼氟酸盐时,微量铜离子对聚合反应速率影响不大,与亚铁盐浓度在一定范围呈R∝[Fe~(++)]~(1/2)的关系,因此例的引发历程为: φN_2~++Fe~(++)→φ·+N_2+Fe~(+++) φ·+M→φM·→φMM·…苯环上推电子取代基降低了重氮基的氧化势,如对位取代甲氧基、甲基或没有取代基都不能用纯亚铁盐引发丙烯腈聚合,需有微量铜盐存在才能聚合。而拉电子取代基如对位取代硝基、羧基可用纯亚铁盐引发聚合。 文摘来源          A new method of block eopolymerization by the use of aromatic tetraazonium salts redox initiators has been proposed. The precipitation polymerization of acrylonitrile in aqueous solution was initiated by the redox initiator of 4,4'-diphenyl tetraazonium fluoroborate and ferrous ion at low temperature (0℃). The polyacrylonitrile linked with diazonium groups and trapped free radicals on both ends by the precipitation polymerization was subjected to block-copolymerize with methacrylic acid or acryl...             提供了一种利用芳族双重氮盐进行嵌段共聚的新方法。研究了利用4,4′-联苯双重氮硼氟酸盐与亚铁盐引发丙烯腈低温沉淀聚合,使聚合物末端带上重氮基与包藏自由基,然后与甲基丙烯酸或丙烯酰胺进行嵌段共聚,所得嵌段共聚物为BAB型。研究了4,4′-联苯双重氮硼氟酸盐与亚铁盐引发丙烯酰胺水溶液聚合,使聚合物末端带有重氮基,再与丙烯腈或丙烯酸甲酯嵌段共聚。 文摘来源   << 更多相关文摘         相关查询: ferrous iron ion ferrous-ion excessive ferrous ion stress ferrous and manganese ion ion ferrous transfering percentage of ferrous ion ferrous ion ′ s interference hydronium ion hydroxonium ion protonium ion ion characters  对查询结果不满意

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