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hydrogen ion
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  “hydrogen ion”译为未确定词的双语例句
     In DC mode the hydrogen ion current can reach 60 mA, and the beam density is 300 mA/cm~(2).
     直流模式引出束流达到60mA,束流密度为300mA/cm2。
短句来源
     At 500 W microwave power, 45 kV extraction voltage and 5 mm of diameter of emittance hole on the plasma electrode, 100 mA peak current of hydrogen ion beam was extracted in pulse mode, corresponding to a beam density of 500 mA/cm2;
     在微波功率500 W、引出电压45 kV及等离子体电极发射孔径为5 mm的条件下,对于脉冲模式,峰值流强为100 mA,柬流密度500 mA/cm2;
短句来源
     at the same conditions 60 mA hydrogen ion current was extracted and beam density was 300 mA/cm2 in CW mode.
     而对于连续模式,流强为60 mA,束流密度300 mA/cm2。
短句来源
     In pulsed mode more than 100 mA peak current of hydrogen ion beam is extracted, which corresponds a beam density of 500 mA/cm~(2).
     脉冲模式引出的氢离子束峰值流强大于100mA,束流密度达到500mA/cm2;
短句来源
     The hydrogen ion conlentration of LDH1,LDH2 and LDH2/LDH1 are as follows:<0.01,<0.05,<0.01 in group One;
     LDH_1、LDH_2、LDH_2/LDH_1的 P 值;
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  相似匹配句对
     ION MTCROPROBE ANALYSIS OF HYDROGEN
     氢的离子探针分析
短句来源
     The energy revision of hydrogen-like ion
     对类氢离子能量的修正
短句来源
     Hydrogen and Home
     氢能进入家庭与环境保护
     Hydrogen Energy
     浅谈氢能
     ION BEEN OXIDATION
     离子束氧化
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  hydrogen ion
The detector allows measurements of the spatial distribution of the energy flux of a high-power hydrogen ion beam to be taken over its cross section.
      
Thermoelectrochemical determination of standard entropy parameters for hydrogen ion in water-methanol solutions
      
The influence of composition of a mixed solvent on the entropy characteristics of the hydrogen ion is analyzed.
      
At potentials of incomplete reduction of chromate ions, the reaction is attendant by a side process (probably, the hydrogen ion reduction).
      
Interrelation between Kinetics of the Hydrogen Ion Reduction on Iron and the Hydrogen Diffusion Flux into Carbon Steel in Acidic
      
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Lecocq first found that the sensitivity of diphenylcarbazide test for molybdate ions in mineral acid medium was 1:2.6×10~5 (it is assumed that he used com- mercial ammonium molybdate),and Schmitz-Dumont reported a value of 1:2 ×10~6 in acetic acid solution.In the present investigation,it is found that the sensitivity is still higher (1:5×10~7) when the test is carried out in the neutral medium (and in test tubes with an inner diameter of 10 mm).Evidently the sensitivity is greatly influenced by the concentration...

Lecocq first found that the sensitivity of diphenylcarbazide test for molybdate ions in mineral acid medium was 1:2.6×10~5 (it is assumed that he used com- mercial ammonium molybdate),and Schmitz-Dumont reported a value of 1:2 ×10~6 in acetic acid solution.In the present investigation,it is found that the sensitivity is still higher (1:5×10~7) when the test is carried out in the neutral medium (and in test tubes with an inner diameter of 10 mm).Evidently the sensitivity is greatly influenced by the concentration of hydrogen ions. The use of the dipbenylcarbazide as a qualitative reagent for tungstate ions has not yet been recorded before.It is found that in the neutral medium the sensitivity of the test is 0.1[D]~5,which is the same as that for molybdate under similar conditions.

本文报告在中性溶液中,对称-二苯基碳酰二胼对钨、钼的灵敏度,两者都是1:5×10~7,或以0.1[D]~5表示之。钨、钼酸根的灵敏度随溶液中氢离子的多寡而不同。

In this article the polarographic behaviours of uranium in phosphoric acid have been studied. In phosphoric acid solutions of moderate concentrations, two distinct waves are observed. These are interpreted as to correspond to reactions the reductions to U~Ⅴ, and to U~Ⅳ. With increasing concentrations of phosphoric acid, U~Ⅴ is less stable and decomposes at the dropping electrode. Therefore the first wave increases, but the total wave height remains unchanged. If the dismutation of U~Ⅴ is complete, or nearly...

In this article the polarographic behaviours of uranium in phosphoric acid have been studied. In phosphoric acid solutions of moderate concentrations, two distinct waves are observed. These are interpreted as to correspond to reactions the reductions to U~Ⅴ, and to U~Ⅳ. With increasing concentrations of phosphoric acid, U~Ⅴ is less stable and decomposes at the dropping electrode. Therefore the first wave increases, but the total wave height remains unchanged. If the dismutation of U~Ⅴ is complete, or nearly so, then only one wave results, because U~Ⅳ forms stable complex with H_3PO_4, and does not show a reduction wave before hydrogen is discharged. The effect of various factors on the rate of dismutation has been examined, whereas the formation of UO~(++) (or UO_2~(++)) complex is more effective than the increase of hydrogen ion concentration. The influence of temperature is still less pronounced.

本文研究在磷酸中铀的极谱行为,并说明当磷酸浓度小时,U~Ⅴ歧化不完全,可在电极上还原为四价,此时得到两个波,当磷酸浓度增大,U~Ⅴ歧化完全或接近於完全,则仅得一还原波。形成UO~(++)(或UO_2~(++))的络合物,较之增大氢离子浓度对歧化速率影响大。改变温度,对歧化作用影响较小。U~Ⅳ的磷酸溶液在氢波出现前无还原波。经分析波的性质,在稀磷酸中两波均系不可逆波,第一波同时受溶液中化学反应及扩散所控制,随磷酸浓度加大,受扩散控制的影响更显著。由於UO_2~(++)在磷酸中能形成络合物,故K_sη~(1/2)不为常数。本文还提出极谱分析铀的方法,卽利用五价铀歧化完全的还原波,在强酸中可作铀的极谱测定。并建议用磷酸作底液,分析U~Ⅵ或同时测定同一样品中U~Ⅵ及U~Ⅳ含量的方法。

Diphenylamine has been found to be an excellent coupling agent for the identification of aromatic amines. Also, due to the facts that the coupling reaction can take place in an acidic medium and that the reagent itself is rather stable, the effect of hydrogen ion concentration and the change of redox potentials to the coloration can also be tested. The mechanism of the formation and the change of the coloration are discussed, the wrong conclusion appearing in the literature having been pointed out. This...

Diphenylamine has been found to be an excellent coupling agent for the identification of aromatic amines. Also, due to the facts that the coupling reaction can take place in an acidic medium and that the reagent itself is rather stable, the effect of hydrogen ion concentration and the change of redox potentials to the coloration can also be tested. The mechanism of the formation and the change of the coloration are discussed, the wrong conclusion appearing in the literature having been pointed out. This paper also deals with the properties of the produced dyes-derivatives of Tropaeolin ○○ type——as the acid-base, adsorption and redox indicator. From a practical point of view none of these compounds seems to have any distinct advantage over the existing indicators in acid-base titrations. Interesting is the behavior of them as an adsorption indicator. In direct titration of chloride in a weakly acidic medium, the property is similar to bromophenol blue and metanil yellow. It is concluded that in the field of oxidation-reduction indicators concerning the reversible color change in titrations with sodium nitrite in an acidic medium, the using of them as the internal indicator for diazotization titration warrants further study.

1.本文推荐了二苯胺作为鉴芳胺化合物的偶合剂,其优于β-萘酚之点在于在酸性介质中即可偶合,试剂稳定便于貯藏,尚可进一步进行酸硷颜色变化试验及氧化还原颜色变化试验。 2.讨论了色素形成及颜色变化的机构并指出文献中错误的推论。 3.讨论了这一类型的偶氮染料用作酸硷吸附及氧化还原指示剂的可能性,和用作重氮滴定内指示剂的优点,并认为应进一步研究。

 
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