碱性介质
- 网络alkaline medium;alkaline media;NaOH;alkalescence medium
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研究了Co(Ⅱ)在碱性介质中催化过氧化氢氧化二溴羟基苯基荧光酮的新指示反应及影响反应速率的因素,建立了测定痕量Co(Ⅱ)的新方法。
Cobalt (ⅱ) in NaOH ( a.q. ) can catalyze the decolorizing reaction resulting from the oxidation of dibromohydroxyphenylfluorone ( DBH PF ) by H 2O 2 . A new catalytic spectrophotometric method for determining trace Co (ⅱ) is obtained . The factors effecting the speed of reaction are investigated .
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本文基于维生素K3(亚硫酸氢钠甲萘醌)或甲萘醌在碱性介质中与氨基硫脲生成紫色化合物的反应。
The method was based on the reaction of the vitamin K_3 ( menadione sodium bisulfite ) or menadione with thiosemicarbazide to form an violet compound in alkaline medium .
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取部分溶液,在pH≥12.5碱性介质中,以钙试剂为指示剂,用EDTA标准溶液滴定钙量。
In pH ≥ 12.5 basic solution , calcium is titrated with EDTA .
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溶液pH值和温度是方解石溶解度的最直接的控制因素,且方解石的溶解随pH值不同分别在强酸、弱酸和碱性介质中表现出不同的反应方式。
The pH value and the temperature of solution is the main factors to control the solubility of calcite .
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微量In和Bi对Zn在碱性介质中腐蚀行为的影响
Influences of trace indium and Bismuth Addition on Corrosion Behavior of zinc in alkaline solutions
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碱性介质中Au(111)电极上双甘氨肽的吸附和氧化研究
Adsorption and oxidation of glycylglycine on Au ( 111 ) electrode in alkaline solutions
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碱性介质中还原高浓度Cr(VI)细菌的分离及其特性
Isolation and Characteristics of Bacteria Reducing High Concentration of Cr ( VI ) in Alkaline Solution
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碱性介质中纳米薄膜Ru电极上CO吸附的异常红外效应
Abnormal Infrared Effects ( AIREs ) of nm-Ru / GC Electrode Towards CO Adsorption in Alkaline Solutions
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在中性至弱碱性介质中,Cu ̄2+与试剂形成稳定的配合物而使试剂荧光熄灭。
The reagent forms a stable complex with copper in neutral or weak alkaline media which causes a quenching of the reagent fluorescence .
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碱性介质中甘氨酸在Pt电极上解离吸附和氧化反应的原位红外反射光谱研究
In situ FTIR Spectroscopic Investigations of Dissociative Adsorption and Electrooxidation of Glycine at the Pt Electrode in Alkaline Solutions
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功能梯度Ni-P合金镀层在酸性和碱性介质中的电化学腐蚀行为
The electrochemical corrosion behavior of function gradient Ni-P alloy deposit in acidic and alkaline media
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荧光法研究碱性介质中吡哆醛(VB6)与几种氨基酸及谷胱甘肽的相互作用
A Study on the Interactions of Pyridoxal ( VB_6 ) with Several Amino Acids and Glutathione in Aqueous NaOH by Fluorescence Spectrophotometry
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乙醇在碳载Pt纳米薄膜电极上吸附氧化过程研究Ⅰ.碱性介质中循环伏安和原位FTIR反射光谱
Studies of Adsorption and Oxidation of Ethanol on nm-Pt / GC Electrode & I.Cyclic Voltammograms and In-situ FTIR Spectroscopy in Alkaline Media
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运用循环伏安和现场FTIR反射光谱研究了碱性介质中乙二醇在铂电极上的吸附和氧化行为。
The electrooxidation of ethylene glycol ( EG ) in alkaline media has been investigated with in situ FTIR spectroscopy and cyclic voltammetry .
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实验检测到Pd纳米棒在碱性介质中对乙醇电氧化的催化活性比商业Pd黑催化剂提高了一倍多。
It has shown that the Pd nanorods exhibit higher catalytic activity than commercial platinum black catalysts towards the electro-oxidation of ethanol in alkaline solution . 4 .
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两种Mannich碱对铜在碱性介质中的缓蚀作用与吸附行为
Inhibition Action and Adsorption Behavior of Two Mannich Bases on Copper in Alkaline Medium
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Ni-Co合金电极在碱性介质中的伏安行为及其电催化性能
Voltammetric Behavior of Ni-Co Alloy Electrode and Its Catalytic Action to Glucose Oxidation
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碱性介质中硝基苯在WC及其复合物电极上的还原主要受反应物(或产物)吸附的控制。
The electrochemical reactions of nitrobenzene on WC and its composite electrodes in alkali solution are controlled mainly by adsorption of reactants or products .
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在酸性、中性、碱性介质中AMT对铜都有良好的缓蚀性能,在酸性介质中其缓蚀性能要优于BTA、TTA。
In acidic medium , the inhibition of AMT to copper is superior to BTA and TTA .
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KMnO4在碱性介质中与Na2SO3反应实验的探讨
Discussion of the Experiment about KMnO_4 Reaction with Na_2SO_3 in Alkaline Medium
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本文提出了在碱性介质中,基于Ag(I)-phen-TPPS4配合物的生成而建立高灵敏度测定Ag(I)的分光光度法。
A highly sensitive spectrophotometric method has been developed for the determination of microamounts of silver , based on the formation of Ag (ⅰ) - Phen-TPPS_4 complex in alkaline aqueous solution .
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研究表明,黄铜矿自诱导浮选良好,有较宽的电位和pH范围;弱酸性和碱性介质中,黄铁矿自诱导浮选较差,没有电位范围。
The experiment investigation shows that chalcopyrite has good self-inducing flotability and a wider range of potential and pH , and in weak acid or alkaline medium pyrite has poorer self-inducing flotability and no range of potential .
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本文利用目标因子分析一分光光度法,首次在碱性介质中,以5-Br-PADAP作显色剂,对锌和镉的同时测定进行了研究。
In this paper , the simultaneous determination of Zinc and Cadmium using Factor Analysis-Photometry has been studied in the 5-Br-PADAP .
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在碱性介质中,痕量钴(Ⅱ)能显著催化H2O2氧化水杨基荧光酮的指示反应。
A novel kinetic method for the determination of trace cobalt was established based on the redox reaction between H 2O 2 and salicyl fluorone catalyzed by cobalt in alkaline medium .
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以乙二胺为碱性介质合成了Zr-MCM-41介孔分子筛。
The mesoporous silica molecular sieves Zr-MCM-41 were synthesized in ethylenediamine .
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研究了BPR树脂在碱性介质中对Au(I)的吸附速率、吸附容量、吸附等温线及其分析应用。
The adsorption properties of gold by BPR resin in alkali solution were studied , such as the rate , capacity and the isotherm of the adsorption , and its analytical application is discussed .
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电沉积非晶态Ni-S-Co合金在碱性介质中的析氢反应
Hydrogen evolution reaction of the electrodeposited amorphous Ni-S-Co alloy in alkaline medium
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混合矿的分选表明在pH为6时获得相同的分选效率,双膦酸的浓度只需磷酸的1/200。即使在中性及碱性介质中,也有很好的分选效果。
The mixtion of phosphate and dolomite indicates that to obtain same separation efficiency at pH 6 , only 1 / 200 concentration of phosphoric acid is required for W-10 used as depressant , It also works well even in neutral and alkaline mediums .
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在碱性介质中,铁矿石矿浆中的Fe(OH)3阳胶体与表面呈负电性的填料之间的电性吸引是矿泥向填料吸附的主要机理。
It would be the main principle of slimes adsorption towards packing with the alkaline medium conditions that the electrical attraction between Fe ( OH ) _3 cationic colloids in the pulp of iron ore and packing with negatively charged surfaces was present .
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研究了碱性介质中阴离子表面活性剂十二烷基苯磺酸钠(SDBS)对锌电极钝化行为的影响,组装成锌-空气电池进行了测试。
The influence of surfactant additive sodium dodecyl benzene sulfonate ( SDBS ) on zinc electrode in alkaline solution has been studied in this paper .