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copper     
相关语句
  
    Structural Chemistry of Copper, Cobalt and Nickel Complexes with β-ketoxime and β-hydrazono-oxime Ligands
    、钴、镍的β-酮肟和β-腙肟配合物的结构化学
短句来源
    Synthesis of Binuclear Copper(I) Complexes Containing Polyimidazoles and Catalytic Oxidation of Benzoin and Exogenous Phenol with High Selectivity
    多咪唑双核酶模型物的合成和催化安息香及酚类的高选择性氧化
短句来源
    Self-Assembled Monolayers on Gold, Platinum and Copper Single Crystal Surface: ECSTM and Molecular Simulation Study
    金、铂、单晶面上自组装单层膜的ECSTM与分子模拟研究
短句来源
    THE STABILITY OF COMPLEX COMPOUNDS FORMED BY N-ARYLGLYCINES WITH COPPER(Ⅱ)AND NICKEL(Ⅱ)
    N-苯氨基乙酸和 N-α-萘氨基乙酸与(Ⅱ)和镍(Ⅱ)络合物的稳定性
短句来源
    DETERMINATION OF TRACE OF COPPER BY ITS CATALYTIC ACTION ON THE PHOSPHOMOLYBDIC ACID-SODIUM THIOSULFATE REACTION
    利用催化硫代硫酸钠还原磷钼酸的反应测定微量
短句来源
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  铜的
    Anodic Stripping Voltammetry with Hanging Mercury Drop Electrode Ⅰ.Determination of Traces of Lead and Small Quantities of Copper in Pure Cobalt
    悬汞电极阳极溶出伏安法 Ⅰ.金属钴中微量铅及少量铜的测定
短句来源
    BCO METHOD FOR DETERMINARION OF COPPER IN WASTEWATER
    废水中铜的BCO光度测定法
短句来源
    Determination of Copper in One Drop of Blood Serum
    一滴血清中铜的测定
短句来源
    Application of PHTTT Reagent in Photometric Determination of Micro-amounts of Copper
    PHTTT试剂应用于微量铜的光度测定
短句来源
    A SPECTROPHOTOMETRIC METHOD WITH BIS-ACETALDEHYDE-OXALYLDIHYDRAZONE Ⅲ. DETERMINATION OF COPPER IN HAIR
    双乙醛草酰二腙分光光度法——Ⅲ.头发中铜的测定
短句来源
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  铜离子
    Determination of Copper(Ⅱ)in Human Hair and Urine Using the Potentiometric Titration with a Copper Ion-Selective Electrode
    用铜离子选择性电极电位滴定法测人发和尿液中的铜
短句来源
    Copper(Ⅱ)-Selective Electrode as End-point Detector in Complexometric Titrations-with Cu(Ⅱ) -EDTA as Indicator
    铜离子选择性电极作为络合滴定的终点检测器—用CU(Ⅱ)-EDTA为指标剂
短句来源
    Study on Chromatograpby of Amino Acids on Dynamically Modified Silica with Alkanesulfonate and Copper Ions
    氨基酸的烷基磺酸盐和铜离子改性硅胶色谱研究
短句来源
    DETERMINATION OF TRACE AMOUNT OF COPPER IN PLANT WITH COPPER ION SELECTIVE ELECTRODE
    应用铜离子选择电极测定植物中微量铜的探讨
短句来源
    Copper Ion-sensitive Membrane Electrode Based on Thiuram Derivative as Carrier
    秋兰姆衍生物作中性载体的铜离子敏感电极
短句来源
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  金属铜
    DETERMINATION OF TRACES OF Bi AND Pb IN HIGHLY PURR COPPER BY ANODIC STRIPPING SEMIDIFFERENTIAEL ELECTROANALYSIS
    阳极溶出半微分电分析法测定金属铜中痕量铋铅
短句来源
    SURFACE-ENHANCED RAMAN SCATTERING STUDY ON OXIDATION OF COPPER IN AIR
    表面增强喇曼散射光谱研究金属铜在空气中的氧化及防护
短句来源
    Studies on Solid State Reactions of Coordination Compounds LXVII.Constitution of M-S(M=Mo,W)Cluster Compound Films on the Copper Surface
    固相配位化学反应研究LXVII.金属铜表面M-S(M=Mo,W)簇合物膜的组成
短句来源
    STUDY OF COPPER REDUCTION ——POTASSIUM DICHROMATE TITRATION MEASURING TOTAL IRON
    金属铜还原-重铬酸钾滴定法测定总铁的研究
短句来源
    Dressing and Oxidation of Copper Colloid
    金属铜胶体的表面修饰与氧化研究
短句来源
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      copper
    The copper complexes of the above ligands were used in catalytic asymmetrical Henry reactions.
          
    Comparison of antibacterial ability of copper and stainless steel
          
    In this paper, the electro-analysis and spectrophotometric analysis methods were used to study the antibacterial ability of copper and stainless steel materials.
          
    coli) and photo-bacteria were used as samples, the antibacterial effect of stainless steel was very weak, while the percentage of bacteria dying from exposure to metallic copper for 30 min was over 90%.
          
    The antibacterial ability of copper has a potential application in the field of disinfection, food packaging and piping of drinking water.
          
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    The extent of coprecipitation of copper with ferric hydroxide in the am- monium chloride-ammonia process has been studied. Pentavalent arsenic and antimony may be present up to 10 mg, and phosphate, 50 mg. Aluminum exerts little effect. It is found that this method yields satisfactory results. The amount of copper coprecipitated in the ferric hydroxide precipitate is negligible in practical analysis.

    用氫氧化銨及氯化銨以分離銅與鐵,結果很好。氫氧化鐵中所留銅量,在實用分析上,已少至毋須考慮。用此法自多量鐵中分離少量銅份,可直接用此色法测定。五價砷與銻存在時,如不超過10毫克,或磷酸根不超過50毫克時,不影響銅與鐵的分離。鋁對分離更無影響。

    p-Nitro-acetophenone was prepared by diazotizing p-amino-acetophenone in fluoroboric acid solution and replacing the diazonium fluoroborate group by the nitro group in presence of finely divided copper as catalyst. Yield 55-60%; m.p. 76-78℃. Recrystallization from alcohol gave a product of m.p. 80℃.

    從乙醯苯胺、醋酸酐與氯化鋅作用,經水解後製得對胺基苯乙酮。在氟硼酸水溶液中重氮化之,再在亞硝酸鈉的水溶液中以銅粉為觸媒,將此重氮團置換成爲硝基,即得對硝基苯乙酮。

    p-Nitrobromobenzene was prepared from the sodium salt of α-p-Nitrophe-nyl-β-acetyl-hydrazine by bromination and subsequent addition of copper catalyst.Similary,α-p-nitrophenyl-pyridine was obtained by adding pyridine instead ofcopper catalyst.

    (一)α-对硝基苯-β-乙醯肼钠盐溴化后,加进铜催化剂,即有放氮效应,产品为对硝基溴苯。(二)用吡啶代替铜催化剂,亦放出氮气,产品为α-对硝基苯吡啶.

     
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