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catalysis wave
相关语句
  催化波
     Polarographic Catalysis Wave of Molybdenum Benzoylphenylhydroxyamine Complex
     Mo(Ⅵ)-N-苯甲酰苯基羟胺络合物的极谱催化波
短句来源
     Vanadium(Ⅳ)is chosen as oxydant to produce a kinetic catalysis wave. The kinetic wave overlapped on the wave of tin-ferrone adsorptive complex, thus the sensitivity of determination enhances.
     用钒(Ⅳ)作为氧化剂产生动力催化波叠加至锡-氟隆络合物吸附波上,使测定灵敏度提高。
短句来源
     Have carried on the preliminary test to the lead’s polarography behavior in a weak acid supporting electrolyte of iodide,through adding vanadium (Ⅳ) as oxidant to produce catalysis wave ,find a relatively high sensitivity,better selecivity and stability supporting eletrolyte.
     对铅的碘化物在弱酸性底液中的极谱行为进行了初步的试验,通过加钒(Ⅳ)作为氧化剂产生催化波,找到了一种灵敏度较高,选择性、稳定性较好的底液。
短句来源
  “catalysis wave”译为未确定词的双语例句
     DETERMINING TRACE SE IN PLEUROTUS SAJORCAJU BY MEANS OF CATALYSIS WAVE POLAROGRAPHY
     催化极谱法测定贵州凤尾菇中痕量硒
短句来源
     There was a sensitive catalysis wave at peak potential -- 0. 855V,and a linear relationship between the peak current and the concentration of titanium over the range of 1~300ng/mL. The determination limit was 0. 5ng/mL.
     钛含量在1~300ng/mL之间有线性关系,最低检出限为0.5ng/mL。
短句来源
  相似匹配句对
     Polarographic Catalysis Wave of Molybdenum Benzoylphenylhydroxyamine Complex
     Mo(Ⅵ)-N-苯甲酰苯基羟胺络合物的极谱催化波
短句来源
     EMOTIONAL WAVE
     情感的风涛——读秀侠
短句来源
     Gold Catalysis
     金的催化作用
短句来源
     L: wave length.
     ,当L→∞时C=-B_0(?)
短句来源
     DETERMINING TRACE SE IN PLEUROTUS SAJORCAJU BY MEANS OF CATALYSIS WAVE POLAROGRAPHY
     催化极谱法测定贵州凤尾菇中痕量硒
短句来源
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The conditions for polarographic determination of tin-ferrone complex was studied. Vanadium(Ⅳ)is chosen as oxydant to produce a kinetic catalysis wave. The kinetic wave overlapped on the wave of tin-ferrone adsorptive complex, thus the sensitivity of determination enhances. The complex of tin with ferrone produces a welldefined and sensitive catalytic wave in 0.08 mol/L sulfuric acid-0.0024 mol/L vanadium (Ⅳ)-0.04 mol/L sodium chloride support solution. The peak potential of derivative...

The conditions for polarographic determination of tin-ferrone complex was studied. Vanadium(Ⅳ)is chosen as oxydant to produce a kinetic catalysis wave. The kinetic wave overlapped on the wave of tin-ferrone adsorptive complex, thus the sensitivity of determination enhances. The complex of tin with ferrone produces a welldefined and sensitive catalytic wave in 0.08 mol/L sulfuric acid-0.0024 mol/L vanadium (Ⅳ)-0.04 mol/L sodium chloride support solution. The peak potential of derivative wave is - 0.45 V(VS. S. C. E.). Linear relationship between wave height and concentration of tin holds in the concentration range of 0.016—0.64 μg Sn per mL. The tin can be saperated from interfering ions by converting into gaseous tin hydride. This method can be applied to the determination of trace amouts of tin in tungstic and molybdic oxides with satisfactory results.

本文研究了锡-氟隆络合物极谱测定条件。用钒(Ⅳ)作为氧化剂产生动力催化波叠加至锡-氟隆络合物吸附波上,使测定灵敏度提高。在0.018mol/L硫酸-0.0024mol/L钒(Ⅳ)-0.04mol/L氯化钠底液中锡与氟隆络合物具有波形好、灵敏度高且稳定的极谱催化波,导数波峰电位-0.45伏(VS.S.C.E.),锡在0.016-0.64微克/毫升范围峰高与浓度呈线性关系。锡与干扰元素的分离采用锡氢化物气化法。用拟定的方法测定三氧化钨及三氧化钼中微量锡,获得了满意结果。

In a supporting electrolyte containing 1.2×10~(-3)M 8-hydroxyquinoline(oxine), 0.01M KCIO_3, at PH 2.7, two sensitive reduction peaks of Molybdenum-oxine adsorption complex onto the hanging drop electrode have been obtaincd by 2.5th order differential neopolarography, preceded by a period of 1 or 2 min of stirred (or stationary) collection at an adsorption potential of -0.25V (vs SCE), using reductive potential scan (v=100mv/s). The peak potentials are located at -0.59V and -0.64V, respectively. Both peaks shift...

In a supporting electrolyte containing 1.2×10~(-3)M 8-hydroxyquinoline(oxine), 0.01M KCIO_3, at PH 2.7, two sensitive reduction peaks of Molybdenum-oxine adsorption complex onto the hanging drop electrode have been obtaincd by 2.5th order differential neopolarography, preceded by a period of 1 or 2 min of stirred (or stationary) collection at an adsorption potential of -0.25V (vs SCE), using reductive potential scan (v=100mv/s). The peak potentials are located at -0.59V and -0.64V, respectively. Both peaks shift in negative direetion with increasing PH. The peak height-molybdenum concentration relationship is linear in the range from 0.4 to 24ng/ml, the regression coefficient is over 0.994. The experiment verified that the ions of Mo(Ⅵ) and Mo(Ⅴ) are all electroactive malefials, and the adsorption of oxine is less than of molyb-denum-oxide complex in this system. The results show theft the reduction wave of the adsorption complex in the presenoe of KCIO_3 is a parallel-catalysis wave with adsorptive property.

本文对Mo(Ⅵ)-Oxine-KClO_3体系Mo(Ⅵ)与Oxine配合物在悬汞电极(HMDE)上的吸附特性、催化机理和体系中的电活性物质,籍助2.5次微分新极谱法进行研究。发现该体系中,PH2.7、Eads-0.25V(对SCE)时,钼配合物能够很好地被吸附;搅拌(或静止)富集1~2分钟,阴极扫描,产生两个灵敏的还原峰,峰电位分别为-0.59V和-0.64V。二者均与钼浓度0.4~24ng/ml范围呈良好的线性关系。实验证实,Mo(Ⅵ)和Mo(V)均具有电活性,Oxine在HMDE表面有明显吸附,而钼的配合物吸附较强,其还原过程分两步进行,是一种具有吸附性质的平行催化波。

The chromium's catalysis wave has been measured at—1.76V(vs, SCE) in a base solution which consists 1.5×10~(-3)M 1,2-diaminepropalyene 0.1M natrium nitrite, pH9~9.5; The lowest limit is 8×10~(-10)M(as 0.04ng/ml) with high sensitivity, and the wave height of oscilloscope derivative has an excellent linear relation with the concentration of chromium salt in the range of 0~lng/ml.The electrode pocedure is assumed through the experiments as following: Cr~(6+)+3e→Cr~(3+) Cra~(3+)+y→Cr~(3+)-y Cr~(3+)-y+e→Cr~(2+)-y...

The chromium's catalysis wave has been measured at—1.76V(vs, SCE) in a base solution which consists 1.5×10~(-3)M 1,2-diaminepropalyene 0.1M natrium nitrite, pH9~9.5; The lowest limit is 8×10~(-10)M(as 0.04ng/ml) with high sensitivity, and the wave height of oscilloscope derivative has an excellent linear relation with the concentration of chromium salt in the range of 0~lng/ml.The electrode pocedure is assumed through the experiments as following: Cr~(6+)+3e→Cr~(3+) Cra~(3+)+y→Cr~(3+)-y Cr~(3+)-y+e→Cr~(2+)-y Cr~(2+)-y+NO_3~-→Cr~(3+)-y+NO_2~_ Where y represents 1,2-diaminepropalyene. After a very simple preceeding treatment to tap water, the amount of Cr~(6+) and total amount of chromium in it may be directly measured by using the present method, and the amount of Cr~(3+) is also obtained.

本文报道在0.1M亚硝酸钠,1.5×10~(-3)M的1,2-丙二胺,pH9.0—9.5底液中铬在—1.76伏处(对饱和甘汞电极)产生-催化波,测定范围在0.1ng/ml内,铬的浓度与导数波高成良好线性关系,测定下限为8×10~(-10)M(相当于0.04ng/ml)。经实验证明,在1,2-丙二胺-亚硝酸盐或硝酸盐两体系中,铬都在—1.76伏处产生催化波,因此,可认为铬的催化机理可能与文献[3]报道的在CyDTA-NO_3体系中三价铬产生催化波的机理相似即: Cr~(6+)+3e—→Cr~(3+); Cr~(3+)+y—→Cr~(3+)—y; Cr~(2+)—y+e—→C~(2+)—y; Cr~(2+)—y+NO_3~—→Cr~(3+)—y+No_2~-其中:y代表1,2-丙二胺。将自来水进行简单的前处理后,可以直接应用本法测定水中六价、三价铬的含量以及水中的总铬量。

 
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