苯并

Methods: Glipizide gliclazide glyburide glimepiride gliquidone repaglinide nateglinide pioglitazone rosiglitazone metformin phenformin and tolbutamide added in the blank ground samples were extracted with 80% methanol and were separated from an ACQUITY UPLC DBH C18 column with a gradient mobile phase of acetonitrile - 0.2 % formic acid water solution. A tandem quadrupole mass spectrometer equipped with electrospray ionization source was used in positive ion mode multiple reaction monitoring was performed to quantify above mentioned compounds.

被添加在中成药制剂及其包装物中的二甲双胍、苯乙双胍、罗格列酮、吡格列酮、格列吡嗫娶瑞格列奈、甲苯磺丁脲、格列齐特、格列苯脲、那格列奈、格列美脲、格列喹酮等西药成分用80%甲醇提取，以乙腈- 0.2%甲酸水溶液为流动相梯度洗脱，在ACQUITY UPLC DBH C18色谱柱上分离，串联四级杆质谱检测，MRM方式采集并定量。

Based on present public system of light raw material MEK toluol unit, a heavyraw material MEK toluol unit with two or three isothermal filtering stages wasdesigned to produce microcrystalline wax and path asphalt concocting componentfrom furol extracting oil simultaneously.

本项目是依托现有轻质酮苯装置的公用系统，新建一套重质酮苯脱油装置，采用两段等温过滤加工轻脱油生产微晶蜡，并兼顾加工劣质裂化原料、糠醛抽出油生产道路沥青调合组分、橡胶填充油及优质催化原料。

METHODS: Compound azelaic acid cream was prepared with vitamin E and azelaic acid as principal agents;the content of vitamin E was determined by HPLC while the contents of azelaic acid and vitamin C were determined by volumetry.

目的：制备复方壬二酸乳膏并建立其质量控制方法。相关：癸二酸二辛酯，癸二酸二（2-乙已基）酯已二酯二辛酯，已二酸二（2-乙已基）酯邻苯二酸二辛酯，邻苯二酯二（2-乙已基）酯已二酸二异辛酯

In order to give sufficient data support for the design of terephthalic acid manufacture, corresponding phase equilibria, including solid-liquid equilibrium and vapor-liquid equilibrium, have been determined and studied.Improvements have been made on our former apparatus, which was used for the measurement of solid solubility, for the purpose of getting more precise experimental data in the range of lower solubility. Horizontal stir was changed to magnetic whirly one, which shortened the dissolving time remarkably.

对苯二甲酸生产中相关相平衡的测定与研究学院：化工学院专业：化学工艺指导教师：马沛生教授六级英语证书：有研究生：陈明鸣，于1997年4月在天津大学获工学硕士学位为了给设计单位提供有关对苯二甲酸生产中的相平衡数据，本文着重实验测定并以数学模型描述了以下两方面内容：TA和TA生产中的主要杂质在相关溶剂中的固液平衡，以及对二甲苯氧化反应器的溶剂体系醋酸-PX的汽液平衡。

A crystalline para form of aminobenzoic acid that is part of the vitamin B complex and is widely used in sunscreens to absorb ultraviolet light.

对氨基苯酸一种结晶的氨基苯酸形式，是维他命b复合物的一个组成部分并被广泛地用于过滤剂中以吸收紫外线光

Para'.'' form of aminobenzoic acid that is part of the vitamin B complex and is widely used in sunscreens to absorb ultraviolet light.

对氨基苯酸一种结晶的氨基苯酸形式，是维他命b复合物的一个组成部分并被广泛地用于过滤剂中以吸收紫外线光

One of the reaction products in the solid state reaction between silver behenate and phthalic acid — di-silver phthalate (Ag2PA) was prepared by liquid deposition method, and was characterized with elemental analysis, ICP-AES and FT-IR.

采用液相沉淀法合成了山嵛酸银与邻苯二甲酸的固相反应产物邻苯二甲酸二银，并通过元素分析、ICP-AES、FT-IR等方法对其进行了表征分析。

The photocatalytic oxidation performance and kinetics of the simulated organic wastewater in a circulating slurry photocatalytic reactor was investigated.The effects of operation conditions, such as dosage of photocatalyst, illumination time, initial benzamide concentration, pH value, anions and cations in wastewater, on the photocatalytic oxidation performance were discussed.

采用循环式浆态光催化反应器对苯甲酰胺模拟废水光催化氧化特性和动力学进行了研究，系统地考察了操作条件对模拟污染物光催化降解的影响，并与搅拌式和鼓泡床式浆态光催化反应器中苯甲酰胺的降解效果进行对比。

In the three systems, system realizes the crosslinking of PVC bases on the peroxide crosslinking mechanism, the tensile strength of crosslinked PVC has been improved somewhat, the IR spectrum of gel demonstrates that there are characteristic absorption peaks of n-alcohol that belongs to ethanol amine and benzenoid group. From the analysis of gel structure , deduces that the mechanism of crosslinking reaction: under the initiations of peroxide and high temperature, PVC yields macromolecules free radicals, at the same time , styrene"s polymerization and grafting onto PVC takes place, at last the system forms crosslinking structure through coupling between radicals; confirms that triethanol amine can absorb HC1 produced by degradation of PVC, so improves the crosslinking efficiency of peroxide, decreases the HCl"s promotion for PVC"s degradation; deduces that triethanol amine can activate the PVC macromolecules and prolong the free radicals" life-time of PVC macromolecules; the effect to the PVC macromolecule makes styrenes graft reaction easy, and thus improves the crosslinking efficiency.

三种体系中三乙醇胺/过氧化二异丙苯/苯乙烯体系基于过氧化物交联机理实现了聚氯乙烯的交联，聚氯乙烯交联后拉伸强度有一定提高，凝胶红外光谱分析证实了凝胶结构中含有乙醇胺的伯醇基团特征吸收和苯环的特征吸收，由凝胶结构分析，推断出交联反应的机理：聚氯乙烯在过氧化物和热作用下产生大分子自由基，苯乙烯在过氧化物和大分子自由基的作用下发生聚合和接枝反应，最终通过自由基之间的偶合产生交联；证实三乙醇胺可以吸收聚氯乙烯分解产生的HCl，提高了过氧化物的交联效率，消弱了HCl对聚氯乙烯降解的促进作用；推断三乙醇胺可以活化聚氯乙烯大分子并有可能使聚氯乙烯大分子自由基存在的时间得以延长，对聚氯乙烯大分子的作用使苯乙烯的接枝反应易于发生，从而提高了交联效率。

The rate constant for the chem. reaction of benzoquinone with reduced GOD was measured, and the advantage of benzoquinone over oxygen as a mediator in bioelectrocatalysis was discussed.

测定了苯醌同还原态GOD的化学反应速度常数，并讨论用苯醌代替氧作为生物电催化中的电子传递体的优点。

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。