酚类

The result also showed that, compared with high-resistant variety PAL activity and content of total phenolate and flavoniods in the inoculated spikes of the mutants and their susceptible donors were increased significantly, which were also different within the healthy or inoculated spikes of different genotypes, yet, there was no relationship between scab-resistance and absolute value of PAL activity or content of total phenolate and flavoniods at a certain stage.

生理生化特性研究还表明，不同基因型健康穗或接种穗PAL活性、总酚及类黄酮含量存在显著差异，与材料的抗赤性无一定顺序关系。

Solvent dosage is 10mL/ gram epichlorohydrin. The yield of 5-chloromethyl-2-oxazolidinone was more than 65.2%. 5-Chloromethyl-2-oxazolidinone and sodium phenolate were condensated to give 5-phenoxymethyl-2-oxazolidinone after taking off the sodium chloride in yield of 63.0%~78.0%. Dimethylsulfoxide was used as the solvent, and orthogonal experiment to the reaction condition had been carried out.

用5-氯甲基-2-噁唑烷酮和酚钠缩合，脱去氯化钠后生成5-芳氧甲基-2-噁唑烷酮类化合物，选用二甲亚砜为溶剂，对反应条件进行了正交实验，最佳条件为：反应温度120℃、反应时间20h、物料配比1：1，产率为63.0%～78.0%。

To research the effect of structure modification of phenothiazine dyes,and to find a photosensitizer that can be used for virus inactivation in red blood cells.

目的 筛选用于红细胞病毒灭活的光敏剂，并研究酚噻嗪类光敏剂的构效关系。

It is studied the synthetic conditions of phosphoryl amic type P-N intumescent flame retardant from bisphenol A and phosphorus oxychloride and melamine. And the fire retardance of P-N intumescent flame retardant on poplar wood were studied by thermogravimetric analysis and burning test.

研究了以双酚A、三氯氧磷和三聚氰胺为原料合成磷酰胺类磷氮系膨胀型阻燃剂的反应条件，并用热重分析和灼烧实验方法初步研究了它对杨木粉的阻燃特性。

A high-performance liquid chromatographic method for the simultaneous separation and determination of aryltetralin lignans and flavonoids in Podophyllum emodi Wall.var. chinesis Sprague was developed. The separation was performed on a Kromasil-C 18 column by gradient elution with phosphate buffer-methanol (0-13min, 50∶50, 33min, 30∶70) as mobile phase at a flow-rate of 0.8 ml/min, with detection 270nm.

首次建立了桃儿七中苦鬼臼葡萄糖甙、4-去甲基鬼臼脂素、表鬼臼脂素、苦鬼臼脂素、苦鬼臼酯酮、鬼臼脂素、鬼臼酯酮、去氧鬼臼脂素、去氢鬼臼脂素等9种木脂素以及山柰酚、槲皮素等2种黄酮类组分同时分离测定的高效液相方法。

METHODS 3-hydroxyestrogen reacted with dimethylsulfate in acetone in the presence of potassium carbonate.

方法以含3－酚羟基的雌激素类化合物为原料，丙酮为溶剂，在碳酸钾存在下与硫酸二甲醋反应。

Amino to acetyl phenol, in have technology of two kinds of production domestic and internationally, acetic anhydride craft of the United States, acyl changes temperature to have 75 ℃ only, acyl changes mother liquor not apply mechanically, deputy reaction is little, of production thick tasting is kind of white almost, purificatory craft is very simple, activated carbon dosage only 2~3%, the Kun that its product does not have glow material almost in different third alcohol inferior the sealed impurity of amine impurity and minim, settleclear lightness it may not be a bad idea, the product quality that acetic anhydride craft produces is good, but close rate low, cost is high.

对乙酰氨基酚，在国内外有两种生产工艺，美国的醋酐工艺，酰化温度只有75℃，酰化母液不套用，副反应少，生产的粗品几乎是类白色，精制工艺就非常简单，活性炭用量仅2~3%，其产品在异丙醇中几乎无红光物质的醌亚胺杂质及微量的未知杂质，澄明度也好，醋酐工艺生产的产品质量好，但收率低、成本高。

First, OFF and LTL single crystals were synthesized in different systems, such as traditional conditions, synthesis in the presence of F〓, and in the presence of pyrocatechol.

采用水热合成法，分别在传统体系、F〓体系和邻苯二酚体系中合成了第二类沸石中的OFF和LTL单晶，并考察了碱度、硅铝比、水量、晶化温度等对合成晶体形貌的影响。

Category Ⅰ: lgβ〓=16～19, lgβ〓=28～32, lgβ〓＞32,Δ～12, such as solochrome violet RS and pyrocatechol violet, they can be employed for determination of Al〓 at pH 4～5, while at pH 8～9 the complex ability of reagents increased obviously, so it can be used for the determination of Al〓.

类试剂：累积稳定常数较大。lgβ〓＝16～19，lgβ〓＝28～32，lgβ〓＞32，△～12。如酸性媒染紫、邻苯二酚紫。该类试剂在酸性pH4～5下可测定无机单核铝，而在碱性pH8～9下测定总单核铝；由于lgβ〓均较大，易和铝形成螯合能力极强的1∶3配合物。

Diterpenoid tanshinones have inhibitory effects on autoxidation of pyrogallol. The inhibitory effects are relative to the structures of diterpenoid tanshinones.

一定浓度的丹参二萜醌类化合物对邻苯三酚自氧化反应有抑制作用，其抑制作用的大小与丹参二萜醌的结构有关。

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。