查询词典 o.d.

To further study the chemical constitutes of lipophilic active parts, we prepared Alc95% and Alc50% according to original literature. 20 compounds were isolated by using macroporous resin, silica gel, polyamide, Sephadex LH-20, Rp-18, preparative TLC and preparative HPLC chromato-graphy. The structures of them were elucidated by means of physical and chemical properties, modern spectroscopic analysis techniques—UV、IR、 EI/MS、ESI/MS、〓H-NMR、〓C-NMR、DEPT、HMQC、HMBC. They are nine anthraquinones: chrysophanol (95-1), physcion (95-2), emodin (95-5), aloemodin (95-7), rhein (50-1), sennoside A or B (50-6),ω-hydroxylemodin (95-10), chrysophanol-8-0-β-D-glucoside (95-12), aloemodin-ω-0-β-D-glucoside (95-13); three phenanthaquinones: tanshinone ⅡA (95-3), cryptotanshinone (95-6), tanshinone Ⅰ(95-4); one isoflavone: 7, 3'-dihydroxyl-5' methoxyisoflavone (95-14) and protocaechuic aldehyde (95-9), protocaechuic acid (95-11), astragaloside Ⅳ(50-4), amygdalin (50-5), 2, 3, 5, 4'-tetrahydroxylstilbene-2-0-β-D-glucoside (50-3),-catechin (50-2), cinnamic acid (95-8). Among them, 3'-dihydroxyl-5' methoxyisoflavone (95-14) is a new compound.

经过溶剂萃取、大孔吸附树脂富集、Sephadex LH-20精制、制备TLC及Semi-pre HPLC等手段从中分离了20个化合物，利用理化性质和波谱技术(UV、IR、EI／MS、ESI／MS、〓H-NMR、〓C-NMR、DEPT、HMQC、HMBC)相结合鉴定了它们的结构，分别为9种蒽醌类化合物：大黄酚，大黄素甲醚，大黄素，芦荟大黄素，大黄酸，番泻苷A或B，ω-羟基大黄素(ω-hydroxylemodin)，大黄酚-8-0-β-D-葡萄糖苷(chrysophanol-8-0-β-D-glucoside)，芦荟大黄素-ω-0-β-D-葡萄糖苷(aloemodin-ω-0-β-D-glucoside)；3种菲醌类化合物：丹参酮ⅡA(tanshinoneⅡA)，隐丹参酮，丹参酮Ⅰ(tanshinone Ⅰ)；1种异黄酮：7，3'-二羟基-5'-甲氧基异黄酮（7，3'-dihydroxy-5' methoxyisofla-vone）以及原儿茶醛，原儿茶酸，黄芪甲苷(astragaloside Ⅳ)，苦杏仁苷，2，3，5，4'-四羟基二苯乙烯-2-0-β-D-葡萄糖苷（2，3，5，4'-tetrahydroxylstilbene-2-O-β-D-g1ucoside），Z—儿茶素，桂皮酸。

RESULTS:12 compounds separated from Dendranthema nankingense were elucidated as cerotic acid,β-sitosterol,ursolic acid,chrysoeriol,luteolin,caffeic acid,daucosterol,chrysoeriol-7-O-glucoside,luteolin-7-O-glucoside,linarin,rutin and potassium nitrate.

结果：从菊花脑中分离得到12个化合物，即正二十六烷酸、β-谷甾醇、熊果酸、金圣草黄素、木犀草素、咖啡酸、胡萝卜苷、金圣草黄素-7-O--βD-葡萄糖苷、木犀草素-7-O--βD-葡萄糖苷、蒙花苷、芦丁、硝酸钾。

The results showed that the-epicatechin-3-O-β-D-allopyranoside extracted from the rhizoma of Drynaria fortunei J.

本实验将从槲蕨根茎经纯化分离出之-epicatechin-3-O-β-D-allopyranoside，已於本实验室证明对骨母细胞有促进增生的作用。

Through spectrographical identification, isoquercitrin prepared by this invention is ascertained that its structure is meletin-3-O- beta-D-glucopyranose, its purity is determined by purity angle which is less than purity threshold. Purity of this compound is above 99 percent through computation, corresponding to requirement of control article.

以本发明制备的罗布麻甲素经过光谱鉴定确证其结构为槲皮素-3-O-β-D-吡喃葡萄糖苷，其纯度经纯度角测定后，纯度角小于纯度阈值，经计算该化合物纯度为99％以上，符合对照品要求。

RESULTS: A new methyl orsellinate glycoside, methyl 2-hydroxy-6-methyl benzoate 4-O-β-D-glucopyranoside (1) and a known methyl orsellinate (2) were isolated from this plant.

结果：从樱草杜鹃中分离得到1个新化合物，鉴定为2-羟基－6-甲基苯甲酸甲酯4-O-β-D-葡萄糖苷(1)，及苔色酸甲酯(2)。

Objective: To study lipid-regulating action of 2, 3, 5, 4′-tetrahydroxy stilbene-2- O-β-D -glucopyranoside from Polygonum multiflorum on experimental model hyperlipidemic rats.

中文摘要：目的：研究何首乌的2，3，5，4′-四羟基二苯乙烯-2- O-β-D -葡萄糖苷对实验性高脂血症大鼠的调脂作用。

In the context of a traffic flow system based on an O-D network, the variation of nonlinear dynamical behaviors and complexity of motion under the variation of uncongested traffic cost and capacity of the roads are discussed through bifurcation diagram and phase plot.

以交通流O-D网络系统为背景，通过分岔图和相图讨论了在无交通阻塞下的交通费用和交通容量变化下系统非线性动力学行为的变化和运动复杂性。

A number of GPIB data acquisition products appeared throughout the 1970s and early 1980s, including voltmeters, digitizers, multiplexers, switches, digital I/O, D/A converters, and simple arbitrary waveform generators.

一定数量的GPIB 数据采集产品出现在70 年代和80 年代初期过程中，包括电压表，数字化器，多重通道，开关，数字式I/O， D/A 交换器，并且简单的任意信号波形发电器。

In/Out:While holding on local design, how does G. O.D deal with the foreign cultures and how do you harmonize the relationship between the two?

里外》：G.O.D在坚持本土化设计的同时，如何对待外来文化，你如何协调这两者的关系？

The valve outlet has a thread size of 0.825 inch O.D.

阀门排气口的螺距为0.825英寸O.D。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。