苯并

A ratio spectra derivative spectrophotometry for simultaneous determination of quaternary mixture of aminopyrine, phenobarbital, caffeine and phenacetin was studied.

提出了可应用于四元混合体系同时测定的比光谱-导数分光光度法，阐述了该方法的基本原理，并将其应用于氨基比林、苯巴比妥、咖啡因和非那西丁四元混合体系中各组分的同时测定。

The supply and demand for trimellitic anhydride at home and abroad were analyzed, and previewed its demand in several years to come.

分析了国内外偏苯三酸酐的市场供需状况，并对我国今后几年的需求进行了分析和预测。

The annulation of stilbene compounds were studied. Phenanthrene derivates-interme diates of tylophorine were synthesized by annulation from-2,3-bis(3,4-dimethoxyphen yl)acrylic acid and-2,3-bis(3,4-dimethoxyphenyl) acrylonitrile with phenyliodine diace tate as a friendly and high efficient catalyzer.The route was first reported, whose application foreground would be promising.The catalyzer will be used to study of synthesi- zing a series of new phenanthrenes.

本文还探索了简单类化合物关环反应，并研究出用廉价高效对环境友好的催化剂-二乙酸碘苯成功地将类化合物－3，4-二甲氧基-α-(3，4-二甲氧苯基)-肉桂酸和-2-(3，4-二甲氧苯基)-3-(3，4-二甲氧苯基)-丙烯关环形成相应的菲环衍生物－娃儿藤碱重要中间体，此方法在国内尚属首次，具有重要的应用价值，此外可用此催化剂研究一系列类化合物的关环反应。

Objective: To study the anticonvulsive action of scorpion alcoholic extraction on phenytoin-resistant convulsive rats made by direct cortical electrical stimulation in order to investigate the mechanism of antagonizing drug-resistance of SAE.

中文摘要：目的：研究全蝎乙醇提取物(scorpion alcohol extraction，SAE)对电刺激大脑皮层点燃耐苯妥英钠大鼠惊厥模型的对抗作用，并探讨其抗耐药作用机制。

The activities of SOD before and after immobilization were determined by pyrogallol autoxidation method, based on which the recovery rate of activity was calculated.

以邻苯三酚自氧化法分别测定溶液酶与固定化酶的活力，并计算回收率。

Purposes:With ethanol, ethyl ether, chloroform, benzene, ether and other immiscible oil, and with some solvents can be formed azeotrope.

用途：与乙醇、乙醚、氯仿、苯、石油醚等混溶，并与可其中一些溶剂形成共沸物。

On the basis of summarizing the rationales for various kinds of delivery systems and comparing their merits and demerits, four novel types of hydrophobically modified hydrogels cross-linked with azobenzene were designed and synthesized.

本文在总结各类传递系统的设计原理、比较其优缺点的基础上，设计并合成了四类疏水改性的偶氮苯交联凝胶。

In this paper, benzaldehyde and its derivatives were prepared by electrosynthetic method with on-line ultrasound; meanwhile the course and the mechanisms were studied.

本论文采用在线超声电合成的方法制备苯甲醛及其衍生物，并对其过程和机理进行研究。

The concentration of benzene series compounds, formaldehyde and TVOC was determined, a survey and analysis of air pollution inside the car was conducted.

于2008年1-7月选择不同车型和车龄的小汽车35辆，进行车内空气中苯系物、甲醛和总挥发性有机物的检测，并分析影响因素。

The major occupational hazards in township paint factories are the organic solvents, especially for benzene series. Therefore, more attention should be given to those factories whose hazards concentrations were higher than the national standard limits and the preventive and control measures should be provided.

在乡镇涂料厂生产过程中的职业病危害因素中，以有机溶剂为重点，其中苯系物为严重的职业病危害因素，特别是对超标的厂家应予重点关注，并提出防治措施的建议。

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。