羟基酸

本文测定了抗癌药物VP-16及其在体内的代谢产物苦VP-16，苦VP-16羟基酸的第一偶合圆二色谱。

The first couplet CD spectra of anticancer drug VP-16 and its metabolism products picro VP-16 , picro VP-16 hydroxy acid in solution was measured .

对用化学方法确定α羟基酸的构型做了探索并通过NOE差谱，二维谱和圆二色谱确定了α羟酸的构型。

In order to determine the configuration of the α hydroxy acid , several chemical methods were tried and the configuration of the α hydroxy acid was established based on NOE difference spectrum , 2D NMR spectrum and circular dichroism .

温和条件下β-羟基酸甲酯的合成及MS分析

Synthesis of methyl β - hydroxy acid esters under ambient conditions and MS analysis

探讨试剂性质、浓度、pH值等对分离和检测灵敏度的影响及分离检测机理，提出新的高灵敏度羟基酸间接光度色谱方法。

The influence of the property and concentration of reagents on retention and detection sensitivity are described . The new indirect photometric chromatographic method with high sensitivity is offered for the analysis of hydroxy acids .

阐述α－羟基酸（AHAs）促进表皮代谢的作用。

This article reported alpha hydroxy acids ( AHAs ) increased metabolism speed of epidermis .

在合成路线中采用了Clemmensen还原法，将α酮酸成功地还原为α羟基酸，此反应为该合成路线的关键步骤。

In this experiment α - keto acid was successively converted to α - hydroxyacid by the application of Clemmensen reduction which was the key step .

由不同的底物，得到了α羟基酸，二羧酸，醛酸（以Lactol形式存在）和α羟基酮等不同类型的自氧化反应产物。

α Hydroxy acid , dioic acid , aldehydic acid ( in the form of Lactol ) and α hydroxy ketone were obtained from different substrates .

如何阿尔法羟基酸的工作，在皮肤护理呢？

How Do Alpha Hydroxy Acids Work in Skin Care ?

羟基酸的离子相互作用间接光度反相色谱研究

Studies On Ion-Interaction Indirect Photometric Reversed-Phase Chromatography of Hydroxy Acids

羟基酸的络合萃取和萃吸平衡研究

Complexing Extraction of Hydroxy Acids and Their Adsorption Equilibrium in Extracting Resins

手性气相色谱分离α-醇腈和α-羟基酸对映体

Enantiomeric Separation of Cyanohydrins and α - Hydroxyl Acids by Chiral Gas Chromatography

羟基酸气相色谱法的定量分析

Quantitative analysis of hydroxy acid by gas chromatography

废油制作羟基酸型（芯）砂粘结剂的方法与应用

Method and Application of Manufacturing Hydroxy Acid from Used Oil for Mold and Core Sand Binder

α-羟基酸在不同的手性配体交换色谱固定相上分离性能的考察

Direct Optical Resolution of α - Hydroxy Acids on Various Chiral Ligand Exchange Chromatography Stationary Phases

γ，δ-不饱和β-酮酯和羟基酸衍生的酰氯酰化反应

Study on Acylation Reaction of γ,δ - Unsaturated β - Keto Esters and Hydroxy Acid Chloride Derivatives

天然的-羟基酸的产生会帮助牙齿亮白，让你更神采奕奕。

The naturally occurring alpha hydroxy acids will help to gently whiten and brighten and leave you looking good .

新型组织工程支架材料&α-羟基酸与α-氨基酸共聚物的研究进展

Research development of poly (α & hydroxyl acid / α - aminoacid ) - A new kind of polymer scaffolds

动物实验已表明全氟羟基酸能作用于肝脏，改变体内胆固醇水平。

Studies in animals suggest perfluoroalkyl acid can affect the liver , which could result in changes in cholesterol levels .

镰孢霉菌内酯水解酶是一种高效的生物催化剂，主要功能是催化内酯水解生成羟基酸。

Fusarium lactonase is a kind of efficient biocatalyst and its most important capacity is the catalytic hydrolysis of lactones into hydroxyl acids .

本文研究芳香族酸性、碱性、两性紫外检测试剂的羟基酸间接光度反相色谱体系；

In this paper , the indirect photometric re-versed-phase chromatographic systems of hydroxy acids are studied using aromatic acidic , basic and amphiprotic UV-detectable reagents .

并对外消旋的α-、β-氨基酸，外消旋的α-、β-羟基酸和含手性烃基的外消旋胺进行了拆分。

And some racemic α - and β - amino acids , α - and β - hydroxy acids and amines with asymmetric alkyl group wore resolved .

羟基酸铬鞣液中阳、中性络离子增多，高电荷阳络离子减少，耐碱性、稳定性提高；

In solutions masked with salts of hydroxy acids noncationic complexes tend to increase and high-charge complexes to decrease , So its perform high stability to alkali ;

[结果]5种α-羟基酸的回收率在92%～101%，相对标准差为1.7%～5.9%，在标准曲线范围内线性良好。

The recoveries of five AHAs ranged from 92 % to 101 % , their standard deviation ranged from 1.7 % to 5.9 % . Correlation coefficients were good .

介绍了一种用机械油、绝缘油、柴油机油、汽轮机油、汽缸油等各种废油制作羟基酸的方法及其作为型（芯）砂粘结剂的应用。

Method and application of manufacturing hydroxyl acid from used oil for mold and core sand binder is introduced . These oil include motor oil , insulating oil , diesel oil , turbine oil , cylinder oil , etc.

开发了一种快速、简单和实用的系列α羟基酸的合成方法，在微波辐照相转移催化的条件下实现了一锅法α羟基酸合成。

Herein , we describe a rapid , simple and practical procedure for the phase transfer catalytic ( PTC ) synthesis of a wide range of α - hydroxy acids by means of a microwave-assisted addition reaction in one pot .

用凝胶电泳法研究羟基肉桂酸衍生物对DNA的辐射保护效应

Gel electrophoresis study of radioprotective effect of hydroxy cinnamic acid derivatives on DNA

羟基硬脂酸铁多层单分子膜的X射线衍射研究

X & ray diffraction study of hydroxyl iron stearate multilayer films

23-羟基桦木酸对B（16）细胞系的诱导分化作用

Differentiation of B _ ( 16 ) melanoma cells induced by 23 - hydroxyl betulinic acid

研究了系列羟基锡酸盐阻燃剂对半硬质PVC的阻燃消烟作用。

The flame retardant and smoke suppression effect of serial metal hydroxystannates on semi-rigid PVC was studied .

通过均匀沉淀法制备了羟基锡酸锌包覆纳米氢氧化镁并将其应用到聚氯乙烯（PVC）中。

Zinc hydroxystannate coated nano-Mg ( OH ) 2 was synthesized through homogeneous precipitation method and was applied to PVC .