查询词典 reagent

The chemistry and technology of epoxidation of oils from silkworm pupae oil rich in linolenic acids, soybean oil rich in linoleic acids and chemical reagent grade triolein rich in oleic acids were systematically analyzed and experimentally studied.

本论文以富含亚麻酸的蚕蛹油，富含亚油酸的大豆油和富含油酸的化学纯三油酸甘油酯为原料进行了油脂环氧化反应的化学与工艺学研究。

This research aim to develop a highly sensitive HPLC method using the fluorescent reagent, 4-nitro-7-piperazino-2,1,3-benzoxadiazole, for derivatization of oleic acid liberated after triolein being hydrolyzed by LPL without sample extraction.

本研究系发展一套萤光高效能液相层析法，使用萤光衍生化试剂4-nitro-7-piperazino-2，1，3-benzoxadiazole，将LPL与受质作用所产生之游离脂肪酸衍生化后分析，藉此定量LPL的活性。

Objective To evaluate the reliability of ITARON turbidimetric immunoassay reagent kit in measuring C-reaction protein.

目的评价日本CRP试剂盒检测C反应蛋白的可靠性。

A readily available β-sulfonamide alcohol-titanium complex was found to be effective on promoting the asymmetric addition reaction of an alkynylzinc reagent to unactivated simple ketones under very mild conditions.

为此我们合成了一系列β-磺酰胺基醇，并将其作为配体与Ti4一起催化炔基锌对简单非活化酮的不对称加成反应。

The experiment results show that the highest unoiling rate s of SW-1 are 85 6% and 80 4% for 15 # lubricating oil and petroleum respectively, and the unoiling rate increases at first and then decreases with further addition of this reagent.

实验结果表明：SW - 1对 15 #机械润滑油和原油的最高除油率分别为 85 6 %和 80 4 %，且除油率是随着加药量的增大而先增大后减小；在 2 0 0～ 2 0 0 0mg/L的质量浓度范围内，除油率随着油介质浓度的增加而降低；同时SW - 1对循环水系统中的缓蚀剂的缓蚀效果没有明显影响。

R-4-Methyl-δ-valerolactone was transformed into-methyl 5-bromo-4-methylpentanoate (5) which is a stable and easily reserved reagent.

首次利用甾体皂甙元氧化降解废弃物-4-甲基－δ-戊内酯合成了松叶蜂性信息素(25，3S，7S)-3，7-二甲基－2-十五醇乙酸酯(2)和丙酸酯(3)。

The costuslactone and dehydrocostuslactone in the supercritical CO 2 extract of aucklandia were identified by TLC using a mobile phase of petroleum ether,ethyl acetate and benzene (70∶5∶15) and the colour developing reagent of 5% vanillic aldehyde dissovled in sulfuric acid.

用薄层色谱法，以ψ(石油醚∶乙酸乙酯∶苯)=70∶5∶1 5为展开剂，质量分数为 5 %香草醛硫酸为显色剂对木香超临界萃取物中的木香烃内酯与去氢木香内酯进行鉴别；并建立高效液相色谱法同时测定木香烃内酯与去氢木香内酯的含量方法。

He way of observing the level of TNF-αand IL-2 : Take blood samples of patients from peripheral vei n one day before operation and on first, third, seventh, twelfth day after opera tion; Extract serum, then measure the level of TNF-αand IL-2 by Radioimmunoassa y according to specification for reagent-box.

NF-α和IL-2含量测定：抽取正常对照组及食管癌患者术前1天和术后1、3、7、12天清晨空腹外周血，分离血清，用放射免疫的方法按试剂盒说明书进行测定。

Because benzyl alcohol is a common reagent and veratryl alcohol is a special and expensive one, it is very economic to replace veratryl with benzyl alcohol.

鉴于苯甲醇是常用的试剂，用它代替昂贵的藜芦醇在经济上有巨大的效益。

Sodium oleate, as a kind of anion surface active reagent, its modification condition was: pH value was 5, the quantity accounted for 20% of total waterish nanoparticle powder, the temperature was 80 centigrade.

纳米颗粒的改性条件为：pH=5 时，油酸钠的添加量为湿粉质量的20%，添加温度为80℃，得到粒径为15nm 的颗粒。

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。