查询词典 reagents

Acetanilide preparation of micro-experiments, the use of smaller amounts of reagents and shorter time to obtain a satisfactory experimental results.

乙酰苯胺制备的微型实验，利用较少量的试剂和较短的时间获得了满意的实验效果。

In acid pulp, the depressing abilities of reagents on diaspore are in the order of hydroxamic acid starch＞dialdehyde starch＞carboxymethyl starch＞cationic starch＞primary starch. In addition, hydroxamic acid starch and carboxymethyl starch can activate kaolinite without influence on the recoveries of pyrophyllite and illite, so the two reagents have great potential and prospect to be the depressant of diaspore and the activator of kaolinite in bauxite reverse flotation.(3) By oximation of the copolymer of acrylamide and methyl acrylate, hydroxamic acid polyacrylamide is synthesized.

3对丙烯酰胺和丙烯酸甲酯的共聚物肟化制得氧肟酸聚丙烯酰胺，将它同非离子聚丙烯酰胺、阴离子聚丙烯酰胺、阳离子聚丙烯酰胺和两性聚丙烯酰胺分别应用于四种矿物的单矿物浮选试验，结果显示，改性聚丙烯酰胺对一水硬铝石、高岭石和伊利石均具有活化作用，其中，药剂对高岭石的活化最强，使它的回收率在整个pH值范围达到80％左右，在一定pH条件下超过一水硬铝石的回收率，解决了高岭石难浮选的问题。

This invention relates to radiotherapeutic reagents and peptides, radiodiagnostic reagents and peptides, and methods for producing labeled radiodiagnostic and radiotherapeutic agents.

本发明涉及放射性治疗试剂和肽，放射性诊断试剂和肽，和生产这些标记的放射性诊断试剂和放射性治疗试剂的方法。

Standard of national medicines and chemical reagents is a country use medical security for sponsorial body what make effectively appear on the market the requirement of legal quality standard that medicines and chemical reagents must achieve.

国家药品标准是国家为保证人体用药安全有效所制定的上市药品必须达到的法定的质量标准要求。

It is the time to final time limit on one hand already not much , it is on the other hand according to " drug law " regulation , begin to carry out national bureau and provincial bureau by the form of a drug of category of medicines and chemical reagents two class attestation , facing onerous working job and new situation , must sturdy confidence is strong the job , cogent according to " uniform standard , standard is supervised , assure quality , stimulative development " principle , ensure the program goal that achieves GM P of medicines and chemical reagents on schedule , safety of sponsorial civil medicine is effective .

一方面是到最后时限的时间已经不多了，另一方面是按照的规定，开始按药品类别剂型实施国家局和省级局两级认证，面对着繁重的工作任务和新的形势，必须坚定信心扎实工作，切实按照&统一标准，规范监督，保证质量，促进发展&的原则，确保按期实现药品GMP的规划目标，保证人民用药安全有效。

Methods Three serologic methods including domestic-made enzyme-linked immunosorbent assay reagents, the toluidine red unheated-serum test and treponema pallidum particle agglutination test reagents were compared. The transudate fluid of the syphilis patient in genital duct was detected by polymerase chain reaction for analysis of infectivity.

采用国产酶联免疫吸附试验试剂与甲苯胺红不加热血清试验和梅毒螺旋体颗粒凝集试验进行血清学方法比较，采用聚合酶链反应对梅毒患者生殖道皮损渗出液进行检测，分析其传染性。

For the next step, the fluoroalkylated triazo-compounds (RFCH2N3) reacted with triphenylphosphine affording fluoro phosphorous imines, N-Wittig reagents. The reactions of these reagents with CO2 and CS2 were studied.

氟烷基叠氮化合物和PPh3室温下反应得到中间体磷亚胺化合物，并初步研究了与CO2、CS2的氮杂-Wittig反应。

The highest occupied molecular orbit and the lowest unoccupied molecular orbit are calculated, and the energy gap of the two orbits determines the activity of the reagents, and yet, in an alkaline solutions for flotation, the HOMOs of the corresponding ions decide the rigidity of the reagents and therefore determine the reaction activity with different rigidity metal cations in minerals, which vary flotation performance to different minerals, and the experimental results were verified.

药剂与矿物作用的能量计算结果表明：苯氧乙酸类抑制剂与方解石和一水硬铝石作用后的能量变化均为负值，能量变化有利，可以形成稳定的吸附；而与黄铁矿作用后的能量变化为正，能量的变化是不利的，故不能形成稳定的吸附，表现出较弱的抑制作用。

Advances on the development of new oxidation reagents and methodologies and their applications in both target-and diversity-oriented synthesis have been regularly surveyed and constituted one of the most extensively and actively investigated areas of current organic synthesis.1 In this context,a plethora of oxidants,including those small organic molecule-based reagents (such as Dess-Martin periodinane,Swern oxidation,Moffatt oxida- tion,Corey-Kim oxidation,and 三氧化硫/pyridine)and metal-based systems(such as Jones reagent,Collins reagent,pyridinium chlorochromate,pyridinium dichromate,barium permanganate, manganese dioxide,ruthenium tetroxide,silver carbonate,and Oppenauer oxidation),have been identified to be powerful tools promoting conversion of various alcohols into their corresponding aldehyde or ketone products and thus evolved as a most important class of tools in synthetic chemists'arsenal.

关于新的氧化试剂和方法，在两个目标和多样性为导向的发展及其应用合成的进步定期调查，构成一个最广泛，积极探讨在这方面，过多的地区目前有机合成。1氧化剂，包括有机小分子为基础的试剂（如Dess - Martin氧化剂，斯文氧化反应，氧化法特，科里，金氧化，三氧化硫/吡啶）和金属为基础的系统（如琼斯试剂，柯林斯试剂，吡啶氯铬，吡啶铬，钡锰，二氧化锰，四氧化钌，银碳酸盐和开瓶器氧化），已被证实为推动中相应的醛或酮醇转化的各种产品，功能强大的工具，因而作为一个最重要的阶级演变在阿森纳的工具合成化学家。

In the field plot experiment, 6 kinds of reagents were set up for controlling grape downy mildew, and 2 reagents were set up for controlling grape powdery mildew, the medication was applied once every 7 d interval in initial stage of 2 diseases occurring, and applied 3 times totally, the statistics were made for diseased leaf rate and disease index after 7-10 d medication applying, and control effect was analyzed.

方法］在田间小区试验中，防治葡萄霜霉病设6种药剂，防治葡萄白粉病设3种药剂，于2种病害发生初期每隔7 d施药1次，共施3次，施药后710 d统计病叶率和病情指数，分析防治效果。

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。