查询词典 ethanol
- 与 ethanol 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Theoretical plates of propyl alcohol is 9.9×10^4 plates/m; resolution of ethanol and propyl alcohol is 4.66; RSD of correction factor of relative mass is 1.67% Good linearity with correlation coefficient 0.999 is observed over the range 45.0%~85.0% of ethanol in solvent. The method recovery for ethanol is 100.4% with RSD 1.69%; he RSD of accuracy is 1.74%.
结果:系统实用性实验测得正丙醇理论塔板数为99000,乙醇与正丙醇分离成4.66,相对质量校正因子的变异系数为1.67%;该方法在乙醇百分含量范围45.0%-85.0%内呈良好的线形关系,相关系数为0.999;平均回收率为100.4%, RSD为1.69%;精密度相对标准偏差为1.74%。
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Mainly engaged in fine chemicals, chemical reagents precious metals, silver nitrate, the acid chloride, potassium cyanide-gold, Sulfite the salt, molecular Silver, silver, industrial ethanol, chemical reagents sulfuric acid, hydrochloric acid, nitric acid, ethanol and 95 percent ethanol and chemical reagents and other electronic products research and production.
主要从事精细化工,贵金属化学试剂,硝酸银,氯金酸,氰化亚金钾,亚硫酸金盐,分子银浆,银粉,工业无水乙醇,化学试剂硫酸,盐酸,硝酸,无水乙醇,95%乙醇等电子和化学试剂产品研究与生产。
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Ethanol inhibition was not affected by 5 nM and 20 nM calyculin A (a phosphatase 1/2A inhibitor). Prior superfusion of 5 nM and 20 nM KT5720 also attenuated ethanol inhibition of NMDA-mediated depolarization. 1 μM and 3 μM chelerythrine, a selective protein kinase C inhibitor or 20 nM calyculin A did not affect ethanol inhibition of NMDA-induced response.
当以表面灌流方式,事先给予5 nM或20 nM KT5720时,同样可以减少乙醇抑制NMDA引发的去极化作用;分别给予1 μM或3 μM chelerythrine或20 nM calyculin A则不会影响乙醇抑制NMDA所引发的反应。
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The experimental results of stepwise ethanol precipitation showed that the yeild represents the increasing trend with increase of the ethanol concentration, their polysaccharides contents have significant changes, and at the ethanol concentration of 30% and 70%, polysaccharides contents are up to maximum. Molecular weights of endopolysaccharides and exopolysaccharides are pockety.
分级醇沉实验表明,各醇沉浓度对应的得率都随醇浓度的升高而呈增加趋势,多糖含量变化起伏较大,醇浓度为30%和70%时所得多糖含量较高,虫草胞内和胞外多糖分子量分布都很不均匀;分步醇沉测定了各部分多糖所占的比例。
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Result: The flux of anemonin permeating through human skin from 30% ethanol, 50% ethanol solution and a combination of 3 % laurocapm -5% polysorbate 20 and 30 % ethanol -3 % laurocapm -5% polysorbate 20 of anemonin was (9.30±0.32),(18.56±0.58),(7.29±0.35),(13.77±0.16)μg·cm-2·h-1 and 7.9, 15.9, 6.2, 11.8 times higher than from saturated water solution respectively.
结果:白头翁素饱和水溶液的稳态渗透速率为(1.17±0.03)μg·cm-2·h-1,含30%、50%乙醇和3%月桂氮酮-5%聚山梨酯20、30%乙醇-3%月桂氮酮-5%聚山梨酯20的白头翁素溶液稳态渗透速率为(9.30±0.32),(18.56±0.58),(7.29±0.35),(13.77±0.16)μg·cm-2·h-1,分别使白头翁素的经皮渗透速率提高了7.9,15.9,6.2,11.8倍。
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The main peaks of the EEG power spectra were in delta and theta frequency range. In the stage of ethanol exposure, the rats exhibited much more act of attack than the control, the alpha waves of EEG decreased, while the delta waves increased. The EEG power spectra analysis showed the delta power increased and the theta power decreased. In the stage of ethanol withdrawal, the rats showed some withdrawal behaviors such as wet dog shakes, sniffing, groomingand tonic-clonic seizures for audiogenic stimulus. Spikes and spike-slow waves were found in the EEG. In power spectra analysis, the delta power decreased while the alpha and the theta power increased, the EEG frequency band moved to the high-frequency rang. These changes were found obviously on the sixth day and disappeared on the 1 Oth day after the ethanol was removed.
本研究发现:1、对照组大鼠行为无异常,伏核EEG以α节律为主,散在出现δ和θ节律;功率主峰在δ和θ频段范围,整个过程中未发现手术对伏核EEG及脑电功率谱有影响。2、在慢性饮酒过程中,大鼠攻击性行为增加,伏核 EEG的α节律明显减少,散在出现的高幅慢活动δ波逐渐增多,功率谱分析表明δ频段功率百分比明显增加,而θ频段功率百分比明显减少,总功率减少。3、停饮后,大鼠出现湿狗样抖动、打喷嚏等撤药综合症,并且高频声音刺激能引发惊厥;伏核EEG出现棘波和棘慢综合波,并持续增多,功率谱分析显示δ频段功率百分比 5 南京医科大学硕士学位论文逐渐减少,而0和以频段功率百分比逐渐增加,总功率增加。
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In order to explore the mechanism of 'brumal jujube' of maturation and scenescence and ethanol accumulation, We not only studied the quality and the post-harvest physiological and biochemical changes of 'brumal jujube' after treatment with hormone during storage, but also investigated the effects of CAi (C027%~10%02+ 2~5%C02) and CA2:(7%~10%02, C02 2%) on the changes of fermentation volatiles, activity of enzymes , the kind and content of sugar and organic acid during storage in this paper. Firstly announced the reason of ethanol accumulation under higher C02 level and discussed the mechanism of ethanol accumulation during the end of storage.
本研究以冬枣为试材,采后采用激素进行处理,通过对贮藏期间果实品质、生理生化指标、果实衰老相关指标和酶活性的测定,系统探讨了外源激素处理对果实采后品质及衰老的调控作用;另外对点红冬枣采用CA_1:(7%~10%O_2+2~5%CO_2)和CA_2:(7%~10%O_2、CO_2≤2%)进行气调贮藏,通过测定冬枣果实品质、乙醇发酵相关酶活性及代谢产物、糖酵解底物及参与三羧酸循环代谢的有机酸含量和种类,研究了冬枣贮藏后期乙醇积累的机制,探讨了枣果不耐高浓度CO_2贮藏的原因。
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The antimicrobial test and researched was done on wide distillation of different solvents on Terpenoid, polarity separation of ethanol distillable substance, thin layer chromatography of different polarities and distillation of amylase. The results showed that the active substance distilled by 95% ethanol and V methanol: toluene=3:1 had stronger antimicrobial activity on Agaricus blazei Murrill. The antimicrobial activity of ethyl acetate was stronger than wide distilling substance with ethanol, but the water part has not antimicrobial effect. Two straps of ethyl acetate phase(Rf0.57、Rf0.63)(0.1g/ml)had stronger antimicrobial activity on Agaricus blazei Murrill, the antimicrobial zone on Pseudomonas was 19.3mm. The bacteriostatic activity of chromatography strap of water phase was rather weaker, the water solution (0.5g/g) of amylase had better effect on pathogenic fungus of Agaricus blazei Murrill, its antimicrobial zone on Aspergillus niger, Citrinin, Trichoderma viride were 10.8 mm, 7.9 mm, 5.3 mm.
通过对日本凹顶藻以不同溶剂的粗提、乙醇提取物的极性分离、不同极性的薄层层析和多糖的提取,进行抗菌试验的研究,发现95%乙醇和V甲醇:甲苯为3∶1的提取的活性物质具有较强的抗姬松茸的病原细菌活性,乙酸乙酯相对病原细菌的抑菌强于乙醇的粗提物,而水相基本无抑菌效果,乙酸乙酯相的两个带(Rf0.57、Rf0.63)浓度为0.1g/ml具有较强抗姬松茸病原细菌的活性,对假单孢杆菌抑菌圈达到19.3mm,水相层析带的抑菌活性较弱,多糖的粗提物配成0.25g/g的水溶液对姬松茸病原真菌有较好的抑菌效果对黑曲霉、桔青霉和绿色木霉的抑菌圈分别达到10.8 mm、7.9 mm、5.3 mm。
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The condition factors in ethanolysis reaction,namely the reaction of rapeseed oil with ethanol catalyzed by lipase LVK,to produce bio-diesel were investigated,and the factors included molar ratio of ethanol to oil,catalyst dosage,reaction temperature,reaction time,and so on;the effect of organic solvent and the procedure of ethanol addition were also investigated.
得出脂肪酶催化菜籽油乙醇解制备生物柴油的最佳反应条件为:醇油摩比5:1、催化剂用量10%、反应温度40℃、反应时间为36 h、正己烷15%。
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Five Co-B amorphous alloy catalysts were prepared by chemical reduction in different media, including pure water and pure ethanol as well as the mixture of ethanol and water with variable ethanol content. Their catalytic properties were evaluated using liquid phase furfural hydrogenation to furfuryl alcohol as the probe reaction.
采用化学还原法在不同介质中制备了5种Co-B非晶态合金催化剂,反应介质包括水、乙醇以及不同乙醇含量的乙醇-水混合溶液,并以液相糠醛加氢制备糠醇为探针反应考察了其催化性能。
- 推荐网络例句
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Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
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In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。