通过沉淀法和相转移法的结合制备纳米催化剂。
Nanocatalysts were prepared by combining the method of precipitation with that of phase transfer.
相转移法合成萘丁美酮具有所用试剂易得,操作方法简便,反应条件温和,成本较低等优点。
CONCLUSION The phase transfer catalyst has advantages of simple starting material, convenient operations and mild reaction conditions.
本试验采用相转移法,通过对溶剂、表面活性剂的筛选和配伍,确定了10%溴虫腈水乳剂的最优配方为溴虫腈质量分数为10%;
Through the screening and assembling of solvent, and surfactant, the optimum formulation of 10% chlorfenapy EW was developed as following by the phase transfer-method.
蛋白质印迹法:蛋白质分子从电泳凝胶转移到固相介质,然后用抗体进行免疫检测的技术。
Western blotting --- A technique analogous to Southern blotting, used for detection of proteins, usually by immunological methods.
方法以苯甲醛衍生物和苯乙酮为原料,弱碱碳酸钾为催化剂,水为溶剂,用相转移催化法合成查耳酮衍生物。
Methods Chalcone derivatives were synthesized from benzaldehyde derivatives and acetophenone by using weak alkali potassium carbonate as based catalyst in water via phase - transfer catalysis.
采用相转移催化法以四丁基氯化铵为催化剂合成了端基含磺胺嘧啶的聚乳酸,将肿瘤导向基团引入了可生物降解药物载体。
Sulfadiazine-polylactide, a tumor targeting drug carrier, was successfully synthesized by the phase transfer catalysis(PTC)with tetrabutyl ammonium chloride hydroxide as catalyst.
方法用高效液相色谱(hplc)法考察疏肝理脾片主要指标成分芍药苷在原生产各环节中(水提液、精制液、干燥品等样品)的提取率、损失率、转移率。
Methods To explore the influences of each links of productive process on the rate of extraction, percentage loss and the transferring rate of paeoniflorin by HPLC.
利用相转移催化法合成香料2-甲基-3 甲氧基吡嗪,并对其反应条件进行探讨,找到较佳的反应条件。
The synthetic method of perfume 2 - methyl - 3 - methoxy pyrazine was investigated and better reaction conditions have been found.
采用相转移催化法合成了1羟基2萘甲酸四乙酰葡萄糖酯,并进行了IR、1HNMR、MS和元素分析,证明了其结构。
Tetraacetyl glucosyl ester of 1 hydroxy 2 naphthoic acid was synthesized by PTC method and confirmed by IR, 1HNMR, MS and elemental analysis.
方法采用高效液相法与紫外吸收光谱法测定提取液中黄芪总苷、 淫羊藿苷含量,通过计算转移率和得膏率,比较两种澄清工艺。
Methods Astragaloside and icariin contents in extracting solution were detected with HPLC and UV-spectrum methods. Metastasis rates and yield were calculated and two techniques were compared.
相转移催化环烷基化反应不适合采用无溶剂法来进行,对反应过程中的溶剂效应进行分析后选择甲苯作为溶剂和带水剂。
The reaction was not suitable conducted under solvent-free condition, water formed during the reaction was removed by azeotropic distillation with toluene throughout the reaction.
相转移催化环烷基化反应不适合采用无溶剂法来进行,对反应过程中的溶剂效应进行分析后选择甲苯作为溶剂和带水剂。
The reaction was not suitable conducted under solvent-free condition, water formed during the reaction was removed by azeotropic distillation with toluene throughout the reaction.
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