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this method is accurate , reliable and reproducible. it can be used for the assaying of magnolol and honokiol in bao ying dan.

结论本方法准确、可靠、重现性好,可适用于保婴丹中厚朴与和厚朴的含量测定。

Some new results are obtained from the studies: 1 a novel thermokinetic research method, the characteristic reduced parameter method, has been proposed, and the kinetics of oxidation of benzoquinone by hydrogen peroxide has also been investigated with this method; 2 the kinetic mathematical models that the metallomicelles made from the mono-nuclear or dinuclear complexes and surfactants catalyze the phenolic derivant oxidation have been established respectively; 3 the feasibility and mechanism that the metallomicelle, a mimetic model of peroxidase, catalyzes the phenolic derivant oxidation has been discussed.

研究得到如下新的结果:(1)提出了一种新的热动力学研究法——特征对比参量法,用该法研究了过氧化氢氧化苯醌反应动力学;(2)分别建立了由单核和双核金属配合物与表面活性剂形成的金属胶束催化类氧化反应的动力学数学模型;(3)探讨了金属胶束模拟过氧化物酶催化类氧化反应的可行性及其机理。

The experiments also show that adding NaHSO3 into the reaction liquid of hydroxylation reaction can inhibit the catalytic effect of benzoquinone and residual catalyst on the phenolic tars formation caused by oxo-condensation of the diphenols and therefore reduce the tars formation of the diphenols in the reaction solution.

在羟基化反应液中加入亚硫酸氢钠可以抑制对苯醌和残留催化剂对苯二氧化缩合生成焦油的催化作用,从而减少了反应液中苯二的生焦反应。

Under the selected chromatographic operation conditions, the 2,2'-Dihydroxy-1,1'-binaphthyl, 2-Naphthol and other impurities could be separated efficiently.

在选定的色谱条件下,1,1'-联-2-萘和2-萘等杂质之间具有较好的分离效果。

An inclusion complex -BINOL--Omeprazole or -BINOL--Omeprazole was first obtained from racemic omeprazole with chiral host --or --2, 2'- dihydroxy-1, 1'-binaphthyl in high selectivities, and thus both optically pure enantiomers of omeprazole were prepared as syrup with more than 99% enantiomeric excess, the overall yields of both two enantiomers are more than 60%.

首次发现光学纯R--或s--联二萘高效识别并包结R--或S--奥美拉唑,形成包结络合物的现象,并首次将包结拆分法应用于手性苯并咪唑类抗溃疡药物的制备,用一种构型的光学纯联二萘直接拆分奥美拉唑,可同时得到油状或糖浆状e.e。

Eliminating or degrading phenolic contaminants in water was involved not only with the bioplastic and propagation of hydrephily biology but also with drinking safety of mankind and terraneous animals.

鉴于清除或降解水中的类污染物,不仅涉及水生生物及陆生植物的生长繁殖,更涉及到人类及陆生动物的食品饮水安全,因此,研究含废水的高效处理技术,对保护环境具有极为重要的意义。

Poly with sulfonic acid groups were readily synthesized with biphenol and 1,3-bis(4-fluorobenzoyl)benzene in the presence of excess potassium carbonate followed by sulfonation with chlorosulfonic acid.

以二氯二苯甲烷和2,6-二甲基苯为原料合成了含有阻碍基团的双单体,用此双单体和1,3-二(4-氟苯甲酰基苯)在无水碳酸钾存在的条件下反应制得聚芳醚酮,然后用氯磺酸磺化,控制反应条件,使磺酸基团恰好进入苯环对位,制得新型结构的磺化聚芳醚酮。

This experiment chooses a kind to contain 1 % bromine phenol orchid and the methanol solution of 5 % water serve as bromic phenolic chemistry to enhance reagent.

本实验选取一种含有1%溴兰和5%水的甲醇溶液作为溴化学增强试剂。

Resonance light scattering spectrum of cadmium- phenanthorline- bromophenol blue system has been studied. The effects of interference substances and optimization of procedure have been investigated. In the presence of Tris-HCl(pH=9.60),Cd2+ reacts with Phen to form the chelate cation, which further reacts with acid dye of BPB to form an ion-associated complex. Then, the complex molecules are accumulated to particles by virtue of hydrophobic forces and other molecular forces. This results in significant enhancement of RLS intensity, and the enhanced intensity of RLS at 638nm is proportional to the concentration of Cd~(2+).

研究了镉-邻菲罗啉-溴蓝体系在碱性条件下的共振光散射光谱特征,考察了体系的影响因素和最佳反应条件,研究表明,在pH=9.60的Tris-HCl介质中,镉与邻菲罗啉形成络阳离子,再与酸性染料溴蓝形成离子缔合配合物,在疏水力等分子间作用力下,缔合物分子聚集形成缔合微粒,溶液的共振散射光显著增强;在638nm处RLS增强程度与镉浓度成线性关系,线性范围为0-3.20mg/L,检出限为4.50ug/L。

In the first case, the products of the MFW4/31 amplification were loaded when bromophenol blue dye from MFW7/9 sample migrated to a 3-cm distance from the wells, while in the second case, MFW17/26 products were loaded when the dye from MFW13/20 reached 4.5 cm.

在第一种情况下,当溴蓝染料从MFW7/9 样品迁移到离加样穴 3-cm 距离时加入MFW4/31 扩增产物,而在第二种情况下,当溴蓝染料从MFW13/20 样品迁移到离加样穴4.5 cm距离时加入MFW17/26 产物。

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This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。

There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.

双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。