酚的

Learn aminolysis of hydroxyl group on aromatics, including the aminolysis of phenol and naphthol.

了解芳环上羟基的氨解，包括苯系酚和萘系酚的氨解

To compare with the difference between ferrous tartrate method (GB/T 8313-2002) and Folin-Ciocalteu method for the determination of tea polyphenols content, 3 groups of tea samples with 5 samples each group, which were selected randomly from local supermarket, were analyzed.

应用酒石酸亚铁法(GB／T 8313-2002)和Folin-Ciocalteu 法测定其茶多酚的含量，初步比较两种方法在多酚含量测定上的差异。

The experiments also show that adding NaHSO3 into the reaction liquid of hydroxylation reaction can inhibit the catalytic effect of benzoquinone and residual catalyst on the phenolic tars formation caused by oxo-condensation of the diphenols and therefore reduce the tars formation of the diphenols in the reaction solution.

在羟基化反应液中加入亚硫酸氢钠可以抑制对苯醌和残留催化剂对苯二酚氧化缩合生成焦油的催化作用，从而减少了反应液中苯二酚的生焦反应。

Confirm the optimum extraction technics of polyphenol of Humulus lupulus by single factor and orthogonal test: impregnant's concentration 70%, the ratio of materiel and impregnant 1:25, circumfluence temperature 45℃, time 1h and extraction quantity achieve 47.29mg/g dry Humulus lupulus at this condition.

通过单因素和正交试验确定了酒花多酚的最佳提取工艺：浸提剂为70%丙酮，料液比1：25，回流提取温度45℃，提取时间为1h，在此条件下多酚的提取量达到47.29mg/g干酒花。

The electrospray ionization mass spectrometry was used to study the fragmentation pathway of kaempferol. The fragmentation pathway of kaempferol was also theoretically studied by means of Density Functional Theory.

采用电喷雾质谱技术对山奈酚的质谱过程进行了表征，并用量子化学方法对山奈酚的质谱裂解途径进行了理论研究。

Results: Kaempferol activated PXR-mediated transcription of CYP3A4 in a dose, time-dependent manner.

结果：山奈酚能通过活化PXR诱导CYP3A4的转录表达，其诱导能力随山奈酚的浓度增大和处理时间延长而呈增强趋势。

The simultaneous determination of m nitrophenol and p nitrophenol in binary mixtures had been studied with differential pulse voltammetry in the paper.

用微分脉冲伏安法同时测定了水样中含间硝基酚和对硝基酚的混合体系，在 0 1mol·l- 1 乙二胺 0 5mol·l- 1 氯化铵(pH =8 5 0 )底液中于- 0 5 0V和- 0 69V处出现两个灵敏度高且互不干扰的吸附波。

50 g/L propofol has the pharmacodynamic effect similar to that of 10 g/L propofol, but the former can delay the occurrence of serum lipid metabolism.

50 g/L异丙酚与10 g/L异丙酚的药效相似，但能延缓脂代谢紊乱的发生时间。

The degradations of DMP, DEP, ABS and MBS were maximal at the optimal pH values and decreased with the deceasing or increasing of pH value.

在pH3.5-4.5之间，1-萘酚保持较高的降解率，在此酸度范围之外，均不利于1-萘酚的降解。

Results:paracetamol injection solution of 25% was produced through the study on technology.

结果：本实验通过对乙酰氨基酚的工艺研究生产出了25%的对乙酰氨基酚注射剂。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。