酸性介质

  • 网络Acidic medium;HAc-NaAc
酸性介质酸性介质
  1. HPLC法研究DNA及其甲基修饰物的酸性介质降解

    Study on the Degradation of DNA in an Acidic Medium by HPLC Using Gradient Elution

  2. 该方法是基于在酸性介质中抗坏血酸和固蓝盐B的反应,产物的最大吸收为420nm。

    The procedure was based on the reaction of ascorbic acid with the fast blue salt B in an acidic medium .

  3. 在酸性介质中用玻璃pH电极作参比电极测定硫离子的新方法

    A Potentiometric Method for Determination of Sulfide Ion with pH Glass Electrode as Reference Electrode in Acid Media

  4. 酸性介质中Mn(Ⅲ)/Mn(Ⅱ)在铂电极上的氧化还原特性

    Redox Characteristics of Mn (ⅲ) / Mn (ⅱ) on Pt Electrode in Acid Solution

  5. 以酸性介质中痕量钒催化溴酸钾氧化甲亚胺H显色反应为对象,利用光度法研究了反应的动力学参数。

    The kinetic parameters of vanadium catalytic oxidation of azomethine H by bromate have been determined by using spectrophotometric method .

  6. 酸性介质中Ti基MnOxD.S.A.稳定性探讨

    Stability of Ti-based MnO_x D. S. A. in Acidic Medium

  7. 酸性介质中1,2-丙二醇在铂电极上吸附和氧化过程的原位FTIR反射光谱研究

    In-situ FTIR studies on adsorption and oxidation of 1,2-propanediol at a platinum electrode in acid solutions

  8. SP-2酸性介质缓蚀剂

    Sp - 2 acid corrosion inhibitor

  9. 乙二醇在铂电极上吸附和氧化过程的现场FTIR反射光谱研究(Ⅰ)&酸性介质

    In Situ FTIR Reflection Spectroscopic Studies of Adsorption and Oxidation of Ethylene Glycol on Pt Electrode (ⅰ)── Acidic Media

  10. 发现酸性介质中,铁蛋白(Ferrtin)催化luminol-H202反应并产生很强的化学发光(CL)信号。

    In acidic medium , Ferritin can catalyze luminol-H2O2 chemiluminescence ( CL ) reaction and produce strong CL signal .

  11. ZnFeRe/Fe在酸性介质中的耐蚀性一般,在中性盐水溶液中的耐蚀性能较好。

    The corrosion resistance of Zn Fe Re / Fe is good in salt solution , but in acid medium the corrosion resistance is commonly .

  12. 在无光照下,B、Q态在中性介质中,蓝膜、P态在酸性介质中均呈高化学稳定性;

    Without no illumination , the B - and Q-state in a neutral medium , as well as blue membrane and P-state in an acidic one , are chemically stable .

  13. CO2饱和高温弱酸性介质中Ni-Cu-P合金、纯Ni和A3钢的电化学行为

    Electrochemical Behaviors of Ni , A3 Steel and Ni Cu P Alloy in CO 2 Saturated Weak Acid at

  14. Pd和Pt具有相似的晶格常数和电子性质,且地壳储量较Pt丰富,同时Pd在酸性介质下对甲醇氧化呈非活性。

    Pd has similar lattice constant and electronic properties with Pt , being more abundant than Pt and inactive toward methanol oxidation under acid medium .

  15. 用电化学循环伏安法和原位FTIR反射光谱法研究了Sb在碳载纳米Pt膜电极(nm-Pt/GC)表面不可逆吸附的电化学特性及酸性介质中乙醇的吸附和电催化氧化特性。

    The electrochemical behavior of irreversibly adsorbed antimony on nm - Pt / GC have been studied by cyclic voltammetry and in-situ FTIR spectrometry .

  16. 研究了在弱酸性介质中微量铜催化H2O2氧化罗丹明B褪色的指示反应,建立了催化动力学测定铜(Ⅱ)的新方法。

    A new method for determination of Copper has been studied . Copper (ⅱ) can catalyze the decolorizing oxidation of rhodamine B by hydrogen peroxide in weak acid medium .

  17. Eosin5NCS在弱酸性介质中的荧光强度明显高于在弱碱性介质中的荧光强度,但荧光强度随溶液pH的变化较敏感,需要小心控制。

    The fluorescence intensity of eosin-ITC in weak acidic medium is higher obviously than that of in weak basic medium , but it is sensitive to change of pH , be careful to use .

  18. 在聚乙烯醇存在下的酸性介质中,镉(Ⅱ)分别与碘化钾、罗丹明B形成水溶性的三元离子缔合物,据此提出了测定镉的高灵敏度的分光光度法。

    In acid medium with polyvinyl alcohol in existence , cadmium (ⅱ) can form water-soluble ternary ionic association with potassium iodide and Rhodamine B respectively . According to this the paper proposes the high sensitivity spectrophotometry to determine cadmium .

  19. 非酸性介质中SAPO5、SAPO34型分子筛的合成

    Syntheses of molecular sieves SAPO-5 and SAPO-34 in non-acid medium

  20. 本文研究了以Pd/Al2O3为催化剂,在酸性介质中硝基苯选择催化合成对氨基苯酚的反应。

    The selective catalytic hydrogenation of nitrobenzene to p - aminophenol was investigated on Pd / Al2O3 . Addition of DMSO could improve the selectivity of p - aminophenol significantly .

  21. 基于酸性介质中As(Ⅲ)能催化碘酸钾氧化丁基罗丹明B使其荧光猝灭,建立了测定痕量As(Ⅲ)的新方法。

    A new , simple , rapid fluorimetric method has been proposed for the determination of trace arsenic (ⅲ) which is based on the catalytic effect of arsenic (ⅲ) on the reaction between potassium iodate and butyl-rhodamine B in acid medium .

  22. 在酸性介质中N-H伪酸Mannich反应机理的量子化学研究

    Theoretical studies on the mechanism of Mannich reaction involving N-H pseudo acid component in acidic media

  23. 为磷矿石浮选所研制的TS药剂在弱酸性介质中能够反浮选胶磷矿,且价廉、无毒。

    The TS reagent developed for phosphorus ore flotation , with low price and less toxicity , can separate collophanite in a weak acid medium by reverse flotation .

  24. 酸性介质缓蚀剂DMH合成与应用

    Synthesis and application of DMH inhibitor

  25. pH值对H2O2的分解影响很大,在酸性介质中的H2O2漂白,白度增值、H-2O2消耗和漂浆白度都很低。

    The pH significantly affects the decomposition of H2O2 during bleaching process . When the bleaching is carried out in acid medium , the brightness gain and H2O2 consumption are very slow .

  26. 用电化学循环伏安研究了酸性介质中4种有机小分子伯醇(甲醇、乙醇、正丙醇和正丁醇)在Pt电极上吸附和氧化过程。

    The processes of adsorption and oxidation of C1 to C4 primary alcohols ( methanol , ethanol , propanol , 1-butanol ) in acid media on Pt electrode were studied by using cyclic voltammetry .

  27. 室温强酸性介质合成MCM-41介孔分子筛&(Ⅱ)辅助模板剂对MCM-41介孔分子筛孔径的调变

    Synthesis of MCM-41 Mesoporous Molecular Sieves under Strong Acidic Conditions at Room Temperature & (ⅱ) Enlargement of the Pore Size of the MCM-41 with Auxiliary Solvent

  28. 对在不同酸性介质中的硅酸聚合胶凝曲线进行了研究,获得了有酸性介质存在时,不同pH值条件下硅酸的形态分布及转化特征。

    The characteristics of silicic acid polymerization were studied and the gel curves of silicic acid were obtained in different acid medium . The species distribution and transforming characteristics of polysilicate in different pH values was also studied when acid medium exists .

  29. 本文用普通的单高阻输入离子计和PH/S电极对,在酸性介质中测定炼油污水的硫离子,无需使用PH缓冲液。

    An experiment for determination of the total number of sulfide ions in the waste water from petroleum refinery with a single high input impedance ion meter and with a pH glass electrode and a sulfide electrode in acid media is described .

  30. 研究了在酸性介质中柠檬酸存在下,痕量钒(V)催化溴酸钾氧化藏红T的褪色反应及其动力学条件,建立了催化荧光测定痕量钒的新方法。

    A new catalytic fluorimetric mehtod and the kinetic condition have been studied for the determination of trace vanadium based on oxidative discoloration of safranin T with potassium bromate in an acid medium and in the presence of citric acid .