trifluoroacetic acid
英
美
网络 三氟醋酸; 三氟乙酸; 三氟代乙酸; 氟乙酸
双语例句
- Trifluoroacetic acid pyridine salt;
三氟乙酸吡啶鎓； - To trifluoroacetic acid as a catalyst, in solvent-free under the condition of the THC for three cyclopentadiene isomerization.
以三氟甲磺酸为催化剂，在无溶剂的条件下对四氢三环戊二烯进行异构化反应。 - Diacetone acrylamide was synthesized with acrylonitrile and acetone as raw material and with trifluoroacetic acid and concentrated sulfuric mixed acid as catalyst.
以丙烯腈和丙酮为原料，探索以三氟乙酸和浓硫酸组成的混酸作催化剂合成双丙酮丙烯酰胺工艺。 - Trifluoroacetic acid ( TFA) is degradation product of some CFCs alternatives, such as HFC-134a, which has some inhibitory effects on plants and soil microbial communities.
三氟乙酸是HFC-134a等氯氟烃替代品的降解产物，对植物和土壤微生物群落的生长有一定抑制作用。 - Preparation and Tribological Properties of TiO_2 Nanoparticles Modified by Trifluoroacetic Acid
三氟乙酸修饰TiO2纳米微粒的制备及磨擦学性能 - For the oxidation reaction, under the conditions of 24h and room temperature, the volume proportion of trifluoroacetic acid and H_2O_2,1 ∶ 10.
氧化反应：室温条件下氧化24h，三氟乙酸与双氧水的体积比为1∶10。 - Nuclear Magnetic Resonance Relaxation of Cohesional Entanglement of Nylon 6 Chains in Trifluoroacetic Acid Solution
三氟乙酸溶液中尼龙6链凝聚缠结的NMR弛豫研究 - In this paper some mixed ligand complexes of rare earth with 1,10-phenanthroline and trifluoroacetic acid were synthesized in aquo-organic solvent. The composition of complexes is Ln ( CF3COO) 3 ·( Phen) 3 · nH2O.
本文在含水溶剂中合成得到稀土三氟醋酸盐与三份邻菲罗啉配位的配合物，确定其组成为Ln（CF3COO）3·（Phen）3·nH2O。 - The mobile phase was ( A) aqueous trifluoroacetic acid solution ( 0.2%) solution and ( B) acetonitrile trifluoroacetic acid solution ( 0.1%). The gradient elution was modified as follows: initial 10% B;
流动相：A相为0.2%的三氟乙酸水溶液，B相为含0.1%的三氟乙酸的乙腈溶液，线性梯度程序为：开始10%B； - Three. Synthesis and application of trifluoroacetic acid
三氟乙酸的制备及应用 - Study on Growth and Properties of Trifluoroacetic Acid Doped TGS Crystals
掺三氟乙酸TGS晶体生长及其性能研究 - The capacitors prepared with PPy-DEHS ( PPy powder doped with di ( 2-ethylhexyl) sulfosuccinate sodium salt) electrolyte in trifluoroacetic acid show high capacitance and low tan δ.
应用PPy-DEHS（2-（2-乙基己基）硫代丁二酸钠盐掺杂聚吡咯，溶剂为三氟乙酸）电解质装配的固体钽电解电容器具有较高的电容量和较低的损耗。 - 03012801 as analytic column, methanol-0.1% trifluoroacetic Acid ( 60 ∶ 40) as mobile phase, the flow rate being 1.0 ml · min~-1, the detection wavelength at 273 nm.
03012801为色谱柱，甲醇∶0.1%三氟乙酸水溶液（60∶40）为流动相；流速：1.0ml·min-1； - Methods 3-Fluoro-4-methoxybenzaldehyde was prepared through the reaction of 2-fluoroanisole with hexamethylenetetramine in the presence of trifluoroacetic acid, and then extracted with anhydrous ether from the mixture after basification with potassium carbonate.
方法以三氟乙酸为溶剂，邻氟苯甲醚与六次甲基四胺发生回流反应，通过无水碳酸钾调节酸碱度、无水乙醚萃取等操作制备3氟4甲氧基苯甲醛。 - An unambiguous assignment of the main 1H NMR resonance of nylon 6 in trifluoroacetic acid ( TFA) solution was carried out by using a combination of 1D and 2D NMR heteronuclear technique ( HMQC).
采用1D和2DNMR技术，归属了三氟乙酸（TFA）溶液中尼龙6链上的主要1HNMR共振信号。 - When SiO2-g-( PCL-b-PtBA) nanohybrids were subjected to hydrolysis with trifluoroacetic acid, pH-sensitive SiO2-g-( PCL-b-PAA) hybrid materials were obtained, whose surface charge numbers and sizes of aggregates at different pH values were quite different.
将SiO2-g-（PCL-b-PtBA）纳米杂化材料进行水解，得到了具有pH敏感性的SiO2-g-（PCL-b-PAA）杂化材料，其表面电荷和聚集体尺寸大小随pH值的改变而显著不同。 - And then used high performance liquid chromatography ( RP-HPLC) to analyze trifluoroacetic acid residues and related substances, and after aseptic testing, we inspected the quality of products.
然后使用反相高效液相色谱（RP-HPLC）对免疫九肽的三氟乙酸残留和有关物质进行分析，之后进行无菌检测，考察了产品质量。 - Finally, in the methylation reaction of S-adenosyl methionine, anisole was used in the extraction process of trifluoroacetic acid, then distilled to recover the trifluoroacetic acid.
在甲基化生成S-腺苷蛋氨酸的反应完成后，用苯甲醚来萃取反应过程中使用的三氟乙酸，萃取液蒸馏后，得到回收的三氟乙酸。 - This method saves the use of drugs trifluoroacetic acid and greatly reducing the cost of MC detection because it can shorten the running time. So the method significantly reduce the cost of MC detection when it is compared with the water method of MC determination of national standards.
此方法较水中MC测定的国家标准方法，不仅省去三氟乙酸的使用，运行时间还得以缩短，大大降低MC检测的成本。 - This study was focused on the determination of trace trifluoroacetic acid ( TFA) with derivation-gas chromatography.
本文研究了水中微量三氟乙酸（TFA）的衍生化-气相色谱检测方法。 - Trifluoroacetic acid can cause redshift of UV-Vis absorption spectra and great enhancement of the fluorescent intensity at 433 nm owing to the effect of protonation.
用三氟乙酸质子化，可引起紫外-可见吸收光谱的红移以及433nm处荧光强度的显著增强。