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lead ion
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  铅离子
     and then adjusting its pH to 8.5 after settling and filtration,the removing rate of lead ion reached up to 98.0%.
     然后沉淀过滤,调节pH值为8.5,铅离子去除率达98.0%。
短句来源
     The removal rate of lead ion containing EDTA was 93.4%, when stirring time was 2 min and pH value was in the range of 1-7, CU2# was 32g to remove 1g lead ion.
     搅拌时间为2min,pH范围为1~7,络合铅离子的去除率可达93.4%,处理1g铅离子需32g的CU2#;
短句来源
     The mechanism of RhB by photoelectrocatalytic degradation was discussed. Sol-Gel method was used to prepare the novel TiO_2 thin films modified by vanadium ion doped (VD_x VT_x, VB_x) and lead ion doped (PbD_x PbT_x) on the glasses.
     采用溶胶—凝胶法在玻璃表面制备钒离子掺杂的TiO_2薄膜(VD_x、VT_x,VB_x),和铅离子掺杂的TiO_2薄膜(PbD_x、PbT_x)。
短句来源
     High Performance Adsorbents for Lead Ion
     高性能铅离子吸附剂
短句来源
     (2) the chemical synthesis of 2'-5'oligo(A),in particular,by the phosphotriester method and the lead ion(Pb~(++))catalytic me-thod;
     (2)2′-5′寡腺苷酸的有机合成,特别是磷酸三酯法和铅离子(Pb~(++))催化法。
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  铅离子的
     For lead ion,the order of maximum uptake capacity was: 0.6SCA8>0.1SCA8>0.6SCA5 >0.1SCA5 >0.6SCA2>SOP>0.1SCA2>0.1CA>AOP>0.6CA>OP.
     对于铅离子的吸附,有以下的顺序:0.6SCA8 >0.1SCA8 >0.6SCA5 >0.1SCA5 >0.6SCA2 >SOP> 0.1SCA2>0.1CA> AOP>0.6CA>OP。
短句来源
     The removal rate of lead ion containing EDTA was 93.4%, when stirring time was 2 min and pH value was in the range of 1-7, CU2# was 32g to remove 1g lead ion.
     搅拌时间为2min,pH范围为1~7,络合铅离子的去除率可达93.4%,处理1g铅离子需32g的CU2#;
短句来源
     Study on Competition Reaction and Replacement Reaction of Metallothioneins with Lead Ion
     金属硫蛋白结合铅离子的竞争反应和置换反应研究
短句来源
     Study on Peat Coat Adsorbing Lead Ion in Polluted Water
     泥炭吸附废水中铅离子的研究
短句来源
     An improved method of determining the solubility product constant of PbI_2 has been proposed. The total concentration of lead ion in solution may be determined by solubility data.
     提出了一个改进的方法测定PhI_2的溶度积常数,可自溶解度数据测定溶液中铅离子的总浓度.
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  “lead ion”译为未确定词的双语例句
     And the apparent rate constant k of non-uniform doped lead ion TiO_2 films was 2.52 times that of pure TiO_2 films whose the rate molar of Pb/Ti is 0.5%.
     Pb/Ti摩尔比为0.5%的非均匀掺铅的TiO_2薄膜光催化降解甲基橙的表观速率常数是纯TiO_2的2.52倍。
短句来源
     The calculations and diagrams show that the mainmechanism of combinating effect of Na_2CO_3-ZnSO_4 is to control the oxidized conditionof Pb-mineral surface and the active effect of lead ion.
     计算和图解表明,NaCO_3-ZnSO_4联合作用的主要机理是控制铅矿物表面氧化状态及控制 Pb~(2+)的活化作用。
短句来源
     The maximum excitation and emission wavelengths of adenine are 308 nm and 441.6 nm,( respectively). Under the optimal experimental conditions, the fluorescence intensity was a linear (function) of concentration of lead ion in the range of 1.0 ~ 60.0 μg/mL and detection limit of lead ion is 0.02 μg/mL.
     腺嘌呤的激发与发射波长λem/λex为308nm/441.6 nm,铅质量浓度的线性范围为1.0~60.0μg/mL,检出限为0.02μg/mL。
短句来源
     The results show that the removal ratio was 99.52% in 50 mL wastewater with the lead ion(Ⅱ) concentration of 25 mg/L when the pH value was keeping at 4,stirring for five minutes at 20℃ by adding 0.03 g the nano-meter X-zeolite.
     结果表明,在50mL质量浓度为25mg L的含铅水样中,投加0 03g纳米X 型沸石分子筛用量在pH约为4 0,温度为20℃,吸附时间为5min,去除率达到99 52%。
短句来源
     The electrode was employed to determine Pb in real waters in 0.2 mol/L NaAc-HAc solution(pH 5),lead ion was accumulated to form Pb-DNA complex on the chemically modified electrode.
     研究表明,该电极在pH 5,0.2 mol/L NaAc-HAc缓冲底液中,可用于测定水中痕量Pb2+。
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  lead ion
The anodic reaction involves the oxidation of galena to lead ion and elemental sulfur, and the cathodic reaction involves the reduction of ferric ion to ferrous ion.
      
Proton NMR was used to study the complexation reaction between lead ion and 18-crown-6 in a number of binary acetonitrile-water mixtures.
      
Replacing lead ions with lanthanum ions would induce a strain in the lattice because the diameter of the lanthanum ion is smaller than that of the lead ion.
      
A nonlinear dependence of glass properties on their composition is established caused by the change of the coordination state of lead ion in glass structure.
      
Total dimer product from racemic ImpA by the lead ion catalyst showed homochiral selectivity.
      
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(1) Gallein forms a blue coloration or precipitate with, lead ions. Sensitivity:0.2γ(1: 5, 000, 000). Cu, Ce, Sb and Sn (Ⅱ, Ⅳ) interfere. (2) The composition of lead galleinate was determined by means of hetero-metric titration method and slope ratio methed. The ratio of reagent to lead inthe compound formed in alcohol medium was found to be 2: 3, while that inaqueous medium (pH 8), 1: 1. (3) Gallein may be used as the reagent in the heterometric titration of lead.Large amounts of other...

(1) Gallein forms a blue coloration or precipitate with, lead ions. Sensitivity:0.2γ(1: 5, 000, 000). Cu, Ce, Sb and Sn (Ⅱ, Ⅳ) interfere. (2) The composition of lead galleinate was determined by means of hetero-metric titration method and slope ratio methed. The ratio of reagent to lead inthe compound formed in alcohol medium was found to be 2: 3, while that inaqueous medium (pH 8), 1: 1. (3) Gallein may be used as the reagent in the heterometric titration of lead.Large amounts of other salts impair the determination. (4) Gallein may be usea as a colorimetric reagent for determination of lead.The color intensity obeys Beer's law in the concentration range 5--150γPb/10ml. (5) Gallein may be used in the standard colorimetric series for visual colori-metric determination of lead.

一、4,5-二羟基荧光黄与铅离子生成蓝色溶液或沉淀。灵敏度:0.2γ(1:5,000,000),Cu~Ⅱ,Ce~Ⅲ,Sb~Ⅲ,Sn~Ⅱ,Sn~Ⅳ,Ti~Ⅳ干扰。二、用悬浮滴定法及斜度比法研究试剂与铅的作用。在酒精中生成组成为R:Pb=2:3的蓝色化合物,在pH8的水溶液中生成R:Pb=1:1的化合物。三、用4,5-二羟基荧光黄可作铅的悬浮滴定和制成标准比色系列进行铅的目视比色。四、用4,5-二羟基荧光黄可作铅的比色试剂。在pH 7-9范围内光密度值恒定。用乙醇为溶剂时当铅的浓度在5-150γ/10 ml之间时,符合比尔定律。生成物稳定,放置二十日仍无变化。

The half wave potential of the lead ions was determined at 25℃ in sodium per-chlorate-sodium acetate mixture,over a concentration range of 0.01—0.13 M acetate ions,and at an ionic strenth 2.5.The succesive stability constants were found to be:K_1=95.5±3.5;K_2=1350±28;K_3=912±18;K_4=501±15.The percentages of the complex ions PbAc~+,Pb(Ac)_2,Pb(Ac)_3~-,and Pb(Ac)_4~= exis-ting in the solution were calculated.The succesive stability constants at 35°and 18℃ were determined by the sametechnique(μ=2.5),and...

The half wave potential of the lead ions was determined at 25℃ in sodium per-chlorate-sodium acetate mixture,over a concentration range of 0.01—0.13 M acetate ions,and at an ionic strenth 2.5.The succesive stability constants were found to be:K_1=95.5±3.5;K_2=1350±28;K_3=912±18;K_4=501±15.The percentages of the complex ions PbAc~+,Pb(Ac)_2,Pb(Ac)_3~-,and Pb(Ac)_4~= exis-ting in the solution were calculated.The succesive stability constants at 35°and 18℃ were determined by the sametechnique(μ=2.5),and the heat content and free energy changes of the reactions werefound to be:△H_1=9.04 Kcal/mol,△H_2=6.87 Kcal/mol;△F_1~°=-2.70,△F_2~°=-4.26,△F_3~°=-4.03,△F_4~°=-3.68 Kcal/mol.

采用徐光宪等的极谱半波电势的方法和作图法,测定铅和醋酸根所成络合物的各级络合常数,在25℃,以高氯酸纳维持离子强度μ=2.5时,测得:K_1=95.5±3.5;K_2=1350±28;K_3=912±18;K_4=501±15。并计算不同浓度醋酸钠溶液中各种络离子的百分组成和热函数与自由能的改变。

The half wave potential of the lead ion was determinted at 25℃ in sodium perchlo-rate-sodium nitrate mixtures over the range 0-2.0 M sodium nitrate at an ionic strength of 3.00. From the data, the existence of Pb (NO_3)_2, Pb(NO_3)_3, in addition to the species.PbNO_3~+ and Pb~(++) as found by previous investigators was revealed. The consecutive stability constants were found to be: K_1=2.34±0.02, K_2=1.30±0.03, K_3 = 3.25±0.12.

采用蒋和徐提出从极谱半波电势求络离子的逐级稳定常数的方法,研究铅离子和硝酸根的络合物,测得PbNO_3~+、Pb(NO_3)~2和Pb(NO_3)_3~-的逐级稳定常数分别为:K_1=2.34,K_2=1.30,K_3=3.25.

 
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