查询词典 reagent

However, these expensive in the analysis of reagent consumption will continue to bring high-cost analysis.

然而这些昂贵试剂在分析应用中不断被消耗会导致分析成本变高的问题，使它们的应用受到限制。

The level of tumor necrosis factore alpha, interleukin-6 (IL-6) and interleukin-8 (IL-8) were evaluated using ELISA method. Western blotting was used to detect the protein expression of protein kinase B and lipid phosphatase PTEN. Immunoprecipitations and radioactivity of γ〓P incorporated into its specific substrate histon H〓B was utilized to determine the PKB activation. Phosphate concentration released from PTEN-specific substrat diC16PIP3 was assessed using green reagent method.

以细胞计数、噻唑蓝比色法测定细胞增殖能力，酶联免疫法检测培养上清液中细胞因子TNFα、IL-6、IL-8水平，Western免疫印记定量蛋白激酶B、蛋白磷酸酶PTEN表达水平，免疫沉淀、特异底物组蛋白H2Bγ〓P掺入量测定PKB活性，特异底物dic16PIP3脱磷酸绿色试剂法反应PTEN活性。

The mechanism of Hofmann rearrangement reaction and the effects of alkyl structure and nucleophilic reagent in medium on the reaction are discussed.

讨论了Hofmann 重排反应的机理以及烃基的结构、介质中的亲核试剂对反应的影响，并介绍了此重排在有机合成中的应用。

To obtain the African horse sickness virus VP7 protein, which is used to preparing serological diagnostic reagent and constructing AHS new generation vaccine, the prokaryotic expression is used to express VP7 protein.

为获得非洲马瘟病毒VP7蛋白，以用于制备AHS血清学诊断试剂并为AHS新型疫苗的构建奠定基础，笔者采用原核表达系统表达VP7蛋白。

With its beautiful and vogue appearance, the instrument has such advantages as integration, continuously measuring standard samples, not contacting and damaging the samples in analyzing, no need of chemical reagent, Chinese character display on a large screen, cold cathode back light liquid crystal, human-computer dialogue operation, large data storage capacity and strong software function.

具有一体化、连续测量标准样法、分析时不接触不损坏样品、无需化学试剂、大屏幕中文显示、冷阴极背光液晶、人机对话方式操作、数据储存能力大、软件功能强等优点。

A novel and simple spectrophotometric method for determination of hydroquinone with 1,2-naphthoquinone-4-sulfonate reagent was developed.

建立了用1，2-萘醌－4-磺酸钠分光光度法测定对苯二酚的新方法。

Solvent and reducing reagent play very important roles in the benzene hydroxylation oxidized by molecular oxygen.

以上无论是常压还是高压条件下的苯氧化轻基化反应的结果都大大高于已有的文献报道。

Lamb Ele commit himself to extend the dope reagent, chemical impregnant and electronic in China market. Lamb Ele provided with good service and quality to help customer get the competition.

专业从事涂料助剂、化工溶剂和电子原材料方面的产品推广，致力于提供优质的产品与完善的服务，协助客户提高产品的市场竞争力。

Because the carbonyl in its structure is with strongly absorb-electron effect, so it is a kind of non-proton polarity solvent with high boiling point, high flash point and low melting point, use conveniently for many processing operation such as filtration, distillation, solvent extraction, and so on; it is with very low toxicity, so the harm to human body is inappreciable, and reduce the environment pollution; due to its very strong dissolvability, it can dissolve organic matter, inorganic matter, resin, polymer, etc., and activate all kinds of reagent, mix to dissolve the other high boiling point solvents; it is with very good stability, it is stable under the hot strong alkali and acidity condition, it is with water-resistance and light, oxygen stability.

246℃ m.p：—20℃闪点121℃ flash point： 121℃分子式：C6H12N2O molecular formula： C6H12N2O 分子量128.18 molecular weight： 128.18 二、DMPU的化学性质 Chemical character of DMPU 其结构中由于羰基具有强烈的吸电子效应，因而它是一种非质子的极性溶剂，具有高沸点、高闪点、低熔点，在过滤、蒸馏、溶剂萃取等工艺操作中使用方便；毒性极低，对人体危害微不足道，也减少了对环境的污染；由于它具有极强的溶解性，能溶解有机物、无机物、树脂、聚合物等，并对各种试剂具有活化性质，还能与其它高沸点溶剂混溶；具有极好的稳定性，在热的强碱和酸性条件下都很稳定，还具有耐水性及对光、氧的稳定性。

Methods: Based on the colorreaction of indophenol reagent and ammonia in meat with the presence of sodium nitroprusside in basic medium, react time, maximum absorption wavelength, react temperature and work curve were investigated; The precision and accuracy of analytical method were researched.

研究了靛酚蓝光度法测定的样品中氨的反应时间、反应温度、最大吸收波长，对试验条件进行了优化；对分析方法的精密度、准确度进行了研究。

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。