酚类

Objective: A gas chromatography-mass spectometry method for rapid determination of 29 kinds of alcohols, acetones, esters, phenols and organic acids in the air in a Workplace has been established.

目的：建立工作场所空气中醇、酮、酯、酚和有机酸类混合物共29种混合物的快速测定方法。

It was considered that substances released from rice might be decomposed by microbe or reacted biotically and abiotically with the soil prior to interacting with the target weeds.

在化感水稻叶和根的浸提液中检测到的酚酸类化合物比根系分泌物中的多，说明水稻体内产生的物质与释放出的物质存在明显的差异。

Through reviewing the reproductive toxicity of some major environmental chemical pollutants, including endocrine disrupters, organic phosphor and chlorine pesticides, organic solvents, and some metals such as lead, cadmium, mercury, manganese, the paper finds that all these ECPs have different extents of toxic effects to experimental auimals on procreation, gestation and even on offspring, some of which have been evidenced by the population epidemiological studies.

本文通过对邻苯二甲酸酯类和双酚A等内分泌干扰物、有机磷和有机氯农药、常用有机溶剂以及常见金属的生殖毒性研究的综述，发现它们均在不同程度上造成对实验动物的生殖毒性、妊娠毒性以及对子代的毒性影响，其中部分在人群流行病学研究上得到证实。

GC-MS analysis suggests that the second part contains phenol sour and sulfur alcohol, which best suits further purification and identification.

GC-MS分析表明，鸭粪的抑菌物质主要为酚酸类和含硫醇有机物质，进一步纯化和鉴定有待研究。

For instance, those in the water quality of the influent are as below: excessive surface active matters, lipid compounds, shock of extreme pH values, very high alkalinity and temperature;inflow of phenol ＆ its derivatives, alcohol, organic acids, and heavy metals etc.

在进水水质方面有：过量表面活性物质和类脂化合物，过低或过高的pH值冲击，碱度过高，水温过热，酚及其衍生物、醇、醛、某些有机酸、硫化物、重金属及卤化物等致毒性底物的流入等等。

These elucidated that the catechins products from steaming leaf, had many advantages in yield, purify and activity than those of tea polyphones from green tea.

从&蒸青叶&中分离制备儿茶素类的产率、纯度与活性均优於从成品绿茶中制备的茶多酚。

This, however, does not change significantly under normal N level. Hence the influence of elevated pCO2 on phenolic acid metabolism in winter wheat leaf depends on N supply. It is highly important to determine appropriate fertilization rate in elevated CO2 conditions.

可见，大气CO2浓度升高对冬小麦酚酸类物质代谢的影响受氮水平的调控，在未来CO2浓度升高条件下，选择适宜的施肥水平将显得更为重要。

The red vine leaf is harvested when the leaves have the highest content of nutrients, including 10% polyphenols and flavonoids.

红葡萄叶收获时，叶片的养分含量最高，包括10 ％的茶多酚和黄酮类化合物。

For anti-oxidant capability, it was found that the 140℃ superheated steam-heated sweet potato had the highest contents of total phenol and flavonoids, and the best scavenging ability of DPPH (1, 1-diphenyl-2-picrylhydrazyl) and FRAP (Ferric reducing ability of plasma).

在抗氧化力方面，发现不论总酚、类黄酮、清除DPPH (1， 1-diphenyl-2-picrylhydrazyl)或FRAP (Ferric reducing ability of plasma)值皆以140℃过热蒸汽加热30 min者最高。

The epoxy-based second-order NLO polymer was synthesized through the coupling reaction between p -nitrophenyl diazonium salt and an epoxy-based precursor polymer,which was prepared by the polycondensation of diglycidyl ether of bisphenol-A and aniline Bi-component (BPAN-lA-NT/M2OS) thin films were prepared by spin-coating from the solution of BPAN-lA-NT mixed with certain amount of a cross linking agent M2OS.

通过双酚A-二与苯胺的逐步聚合反应合成环氧树脂类先驱聚合物BPAN ，进一步通过先驱聚合物的后重氮偶合反应，制备了侧链带偶氮生色团的二阶非线性光学聚合物BPAN-1A-NT。

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。