酚

Any of a group of amines derived from catechol that have important physiological effects as neurotransmitters and hormones and include epinephrine, norepinephrine, and dopamine.

儿茶酚胺一种从苯磷二酚中获得的胺，具有神经传感和荷尔蒙的重要生理功能，包括肾上腺、去甲肾上腺素和多巴胺

Objective To establish a HPLC method for determination of diethylstilbestrol and chloramphenicol in compound diethylstilbestrol cream .

目的用高效液相色谱法同时测定复方己烯雌酚乳膏中己烯雌酚和氯霉素的含量。

A sensitive spectrophotometric method for the determination of trace amounts of chlorine dioxide based on the fading reaction of chlorophenol red by chlorine dioxide has been developed in the alkaline solution.

在弱碱性条件下，二氧化氯(ClO2 )氧化氯酚红使其褪色，于 5 75nm波长处测定剩余氯酚红的吸光度，当用试剂空白参比时，吸光度的降低值与ClO2 的浓度呈直线关系，其它氧化剂在测定条件下无干扰，方法有较高的灵敏度和很好的选择性。

The results indicated that oxidation of phenol,p\|chlorophenol,p\|aminophenol and hydroquinone by manganese ore particles was enhanced by illumination.

结果表明，pH=3、10±0.04时，苯酚、对氯苯酚、对氨基酚及对苯二酚均能被锰矿砂光催化氧化。

Lidocaine hydrochloride reacts with phenol red or chlorophenol red to form an ion-association complex, the colours of solutions change obviously, the maximum absorption wavelength at 556 nm (PR-LDCI system) and 572 nm (CPR-LDCI system), the adding colours intensity is also proportional to the concentration of lidocaine hydrochloride, to develop spectrophotometric method of determination of lidocaine hydrochloride.

酚红、氯酚红分别与盐酸利多卡因作用，形成离子缔合物，溶液颜色发生明显改变，最大吸收波长分别为556 nm、572 nm，在对应波长处，盐酸利多卡因的浓度与溶液的增色程度呈良好线性关系，从而建立测定盐酸利多卡因的光度法。

The results showed, the IC50 of methyl cinnamate for monophenolase and diphenolase were 0.92 mmol/L and 1.65 mmol/L, and it was a non-competitive inhibitor.

3研究肉桂酸甲酯对蘑菇酪氨酸酶的抑制活性，结果表明，对单酚酶和二酚酶，它的IC50分别为0.92 mmol/L和1.65 mmol/L，是非竞争性抑制剂。

The experimental result showed that the total phenol content and antioxidant capacity of the Claret were largely positive correlation.

干红中总酚含量与还原能力大致成正相关，表明干红的抗氧化能力与其所含有的总酚类物质有关。

Glycine receptor competitive antagonist partially reversed the effects of propofol. When slices were preincubated with GABA〓 receptor and glycine receptor competitive antagonists collaterally or preincubated with GABA〓 receptor incompetitive antagonist and glycine receptor competitive antagonist collaterally, 100μM propofol still decreased the amplitude of EPSCs.

2在膜钳制电压为-70mV条件下，100M丙泊酚明显降低合用GABA〓受体和甘氨酸受体竞争性拮抗剂预孵的大鼠海马脑片CA1区电刺激诱发的EPSC幅值，下降程度小于单纯甘氨酸受体竞争性拮抗剂预孵组，大于单纯GABA〓受体竞争性拮抗剂预孵组；而且，100M丙泊酚更是明显降低合用GABA〓受体非竞争性拮抗剂和甘氨酸受体竞争性拮抗剂预孵的大鼠海马脑片CA1区电刺激诱发的EPSC幅值，下降程度甚至大于单纯甘氨酸受体竞争性拮抗剂预孵组。

1H NMR spectroscopic analysis of aromatic protons combined with theoretical analysis of molecular structures proved the existence of two rotational isomers at 300 K, as well as a rapid interconversion equilibrium at 330 K for both compounds Ⅰ and Ⅱ. However, only one conformer exists for compound Ⅲ and puerarin containing 7-phenolic hydroxyl instead of propyl in A-ring as the case of compounds Ⅰ and Ⅱ. Based on UV-Visible absorption data of neutral and basic solutions, and on the density function calculations, the 7-phenolic hydroxyl group in A-ring was found to be more acidic than the 4'-phenolic hydroxyl group in B-ring. The mechanism of derivation reaction and the structure-reactivity relationship of puerarin as an antioxidant were further discussed.

其中7-丙基葛根素Ⅱ属于新型取代衍生物；变温1H NMR和理论计算结果表明，在300 K时，葛根素和4'-丙基葛根素以单一构型存在；而7，4'-二丙基葛根素和7-丙基葛根素则存在两种核磁可分辨的旋转异构体，当温度升至330 K时，两种异构体可以相互转化；通过对比分析葛根素及其衍生物脱质子产物的紫外可见吸收光谱并结合理论计算，确定了A环上7位酚羟基比B环上4'位酚羟基先脱去质子，并由此进一步阐明了葛根素衍生化反应机理以及在抗氧化作用中可能的活性位点和结构活性关系。

The effects of freezing on the fermentation and speed of infusion of congou black tea was studied.Congou black tea from the fresh and withering tea leaves was performed as follows: deep freezing at -17 ℃ for 2 h,then thawing,rolling,fermenting and drying.

为了使茶多酚氧化酶以可溶形式从完整细胞或组织结构中释放出来，并保持其活性和稳定性，催化多酚类氧化，通常要将茶鲜叶在一定介质中进行充分的细胞破碎，释放出细胞内含物。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。