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- The catalytic gas liquid isotope exchange reaction is a good method to prepare tritiated triptolid. 采用催化气液同位素交换法制备了氚化雷公藤甲素,探讨了反应时间和反应介质对反应产额的影响。
- isotope exchanger reaction [机] 同位素置换反应
- isotope exchange reaction 同位素交换反应
- A pilot test on performance evaluation of Pt-SDB catalyst for HD(g)-H2O(l) isotopic exchange reaction Pt-SDB疏水催化剂应用于氢-水同位素交换的实验研究
- When Mg2Al-CO3-LDHs was used the anion exchange reaction did not accur. 以Mg2Al-CO3-LDHs为前体，用离子交换的方法不能制备丙烯酸插层水滑石AA-LDHs。
- For this purpose, we have investigated the isotope exchange process for the trace recovery from the imitative residue of the alloy. 利用同位素交换法对模拟液态锂铅合金残渣中的微量氚进行回收。
- isotopic exchange reaction 同位素交换反应
- This complex reaction is characterized by a keto-enol tautomerism eqilibrium and ester exchange reaction. 此螯合反应是由酮一烯醇互变异构平衡过程和酯交换反应组成。
- There is close relation betweenthe ATP_b-Pi exchange reaction andenergy transduction of thylakoid mem-brane. ATP_b-Pi 交换反应与类囊体膜的能量转换有密切的关系。
- The alcohol producing in the exchange reaction reduces the yield of furan phenol by the further by-react... 探讨了呋喃酚环合反应质子酸催化机理。
- Butyl lactate was synthesized by the ester exchange reaction of D,L-lactide and n-butanol under the catalysis of sulfuric acid. 研究了D,L-丙交酯在浓硫酸催化作用下与正丁醇进行酯交换反应合成乳酸丁酯的条件。
- Quaternary ammonium salt of chitosan was synthesized starting from chitosan, triethylamine and ethyl chloroacetate by ester exchange reaction. 以三乙胺、氯乙酸乙酯和壳聚糖等为原料,采用酯交换法合成了壳聚糖季铵盐。
- Takeshi I,Masahiro K,Akihiro P.Process for preparation of glycidyl methacrylate by catalytic ester exchange reaction:JP08239372[P].1996-09-17. 刘亚康;毛优平;金关泰.;丙烯酸缩水甘油酯的合成工艺研究[J]
- After they go through the exchange reaction of macromolecule chain,we obtain polyester-amide hot melt adhesive for textile. 研究了以聚酯胶和聚酰胺胶为原料在催化剂作用下加热共熔,通过大分子链交换反应制备织物用聚酯酰胺热熔胶的方法。
- Preparing fatty acid methyl ester was achieved by reap oil ester exchange reaction by using new type solid alkali catalyst(LDH/LDO). 采用新型固体碱催化剂LDH/LDO进行菜油酯交换反应制备脂肪酸甲酯;产率达98.;5%25以上。
- Chemical Water Treatment Equipment: widely used to produce softened industrial water, desalted water, industrial pure water and urban drinking water through exchange reaction. 化学水处理设备：广泛应用于工业软化水、脱盐水、工业纯水及城市饮用水等方面。通过交换反应，达到水质软化或除盐的目的。
- A radioactive isotope of carbon, especially carbon 14. 放射性碳碳的一种放射性同位素，尤指碳14。
- In this paper,the properties and synthesis process of dimethyl carbonate are systematically reviewed, including ester exchange reaction and methonal carbonyaction. 介绍了碳酸二甲酯的性质及合成方法,包括光气法、酯交换法和甲醇氧化羰基化法及其它方法;
- Could I ask for your reaction to this policy? 我能问一下您对这个政策的反应吗？
- The 18O shift may indi-cate the isotopic exchange between water and rocks and the relict of co-diagenetic formation water. ~(18)O漂移可能表明水与岩石发生了氧同位素交换,也可能有少量同生沉积水残存。
