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- A series of superconductor type cuprates synthesized by citric acid complex method exhibited high catalytic activity in direct hydroxylation of phenol to diphenols. 通过探讨催化剂结构与活性的关系,发现含铜复合氧化物中的非化学计量氧和铜离子的平均价态与苯酚羟化活性和过氧化氢分解活性密切相关。
- citric acid complex method 柠檬酸络合法
- complexing method of citric acid 柠檬酸络合法
- Nano-powders of doped lanthanum chromites were prepared by the aqueous organic-gel method using citric acid as a complex agent and metal nitrate as starting materials. 以柠檬酸作络合剂 ，硝酸盐作起始物，采用有机凝胶法制备掺杂铬酸镧的纳米粉体。
- citric acid complex 柠檬酸络合
- Citric acid anhydrous powdered p. A. 无水柠檬酸。
- Using with citric acid, TBHQ is more effective. 柠檬酸对TBHQ抗氧化作用具有一定增效作用。
- A linear graphic method for the determination of the eguivalence points of citric acid of base titration is presented. 此法介绍用线性作图法测定强碱滴定柠檬酸等当点的方法,采用电位滴定技术,滴定剂分步等量加入。
- Citric acid is an important organic acid and mainly produced by fermentation method. 柠檬酸是一种重要的有机酸,主要通过发酵法生产。
- Buy: maltoflavin, citric acid, phosphate, sucralose, sorbit ... 哥伦比亚公司求购麦牙黄素，柠檬酸，磷酸盐2007-04-06
- An indirect method was used for determing the complex calcium in nitro humic acid complex calcium. 用间接法测定了硝基腐植酸钙中络合钙的含量。
- Citric acid, trisodium salt hydrate, DNAse, RNAse and Protea... 询价 柠檬酸三钠盐水合物；
- The amelioration of application of complex method is described. 第2部分说明应用复形法的若干改进。
- Lemon concentrated juice, Sugar, Citric Acid, Natural spice. 浓缩柠檬汁、砂糖、柠檬酸、天然香料。
- She likes to drink fruit beverages containing citric acid. 她喜欢喝添加了柠檬酸的果味饮料。
- The PZT thin ceramic particulates/stearic acid complex LB films were prepared by PZT sol gained by colloid chemical method and LB techniques. 用胶体化学的方法获得PZT溶胶,利用LB技术制备PZT超细陶瓷微粒/硬脂酸复合LB膜,热处理后得到PZT超薄膜。
- The proposed method has been applied to the spec- trophotometric determination of citric acid in aerated water with satisfactory results. 用此法测定了几种饮料中的柠檬酸含量，结果令人满意。
- The result indicated:(1) ZnFe2O4 thin films were successfully fabricated by sol-gel method, with citric acid and acetylacetone as chelating agent. 结果表明：（1）分别采用柠檬酸和乙酰丙酮作为络合剂，用溶胶－凝胶法都能成功的合成ZnFe2O4薄膜。
- The PMN-PT relaxor ferroelectric thin films were prepared,using inorganic salt as raw material,citric acid and EDTA as complex chelating agent,ethandiol as solvent. 以无机盐为原料,柠檬酸和EDTA为复合螯合剂,乙二醇为溶剂制备PMN-PT弛豫铁电薄膜,研究了复合金属有机盐前驱物的性质对薄膜结构和成膜质量的影响。
- In this paper, nanometer perovskite-type catalysts La1-xSrxMnO3 are prepared by citric acid sol-gel method that add surface-active agent. 本研究采用添加表面活性剂的柠檬酸溶胶-凝胶法制备了纳米钙钛石型氧化物催化剂La1-xSrxMnO3。
