水醇的
- 与 水醇的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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UV 254nm, 366nm and anisaldehyde as a chromogenic agent were used for detecting compounds of these strains. Results indicate that the metabolites of these strains were the most abundant when these strains were fermented in No.1 and No.4 media, and only few in No.2 and No.3. Metabolites of each strain were different in different media.
实验结果表明,用1号和4号培养基发酵产生的次生代谢产物的种类最丰富,2号和3号培养基产生的较少;用II号展层系统(氯仿∶甲醇=4∶1)和III号展层系统(正丁醇∶乙酸∶水=4∶1∶5)作TLC层析,检测到的产物最多;3种检测方法以茴香醛检测到的代谢产物最丰富。
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The reaction conditions including the molar ratio of methanol to oil, amount of alkaline catalyst used, and reaction temperature and time were optimized by the mono-factor and orthogonal tests.
通过棉籽现场碱催化转酯化联产生物柴油和无毒棉粕,考察了棉仁中水的质量分数、粒径对产物中脂肪酸甲酯的质量分数和棉粕中游离棉酚质量分数的影响;对反应过程中的醇油摩尔比、反应时间、催化剂用量、反应温度进行了单因素和正交实验考察。
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From the statistical analyses of the descriptors used in the evolution procedure, three of them, including the partition coefficient (APlog98), indicator, E-State key were found to be the principal features affecting the biological activity, which supplies a guide for the design and reconstruction of new Ribonucleotide Reductase Inhibitors.
同时,通过分析在遗传优化过程中分子参数出现的频度,还得到了可能对活性影响较大的几个重要分子参数,它们分别是水/辛醇分配系数(ALogP98)、指示因子以及电性拓扑态指数。对该类抑制剂的设计和改造提供了指导。
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Results Bulbus alkaloids easily formed molecular ions(superscript + in MS and dimerized easily in alcohol solution, which did not dimerize in acidity solution. Collision induced dissociation made these alkaloids easily lose a molecule of H2O. The MS spectra of the extracts of five Bulbu Fritillartae species indicated that the major molecular ions were similar to each other, but different varieties showed very different relative abundances of these molecular ions.
结果 在正离子一级质谱中,贝母生物碱易形成带一个正电荷的准分子离子,并且在中性醇溶液中,贝母生物碱易形成二聚体,在酸性介质中则无此现象;二级碰撞诱导解离易使贝母生物碱脱去一分子水;5种贝母对照药材的总生物碱提取液的一级电喷雾质谱图显示,主要分子离子峰基本相同,但因品种不同相对丰度差异较大。
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The extracts of water and alcohol were separated by ion exchange resin. The eluates of neutral solution were the most effective against hydroxyl radicals and the highest rate of inhibiting hydroxyl radicals was 81%. The eluates of basic solution were also effective, the inhibit rate of which was 60%.
将发酵灵芝粉的水和醇提取物上离子交换树脂柱,依次用酸性、中性、碱性淋洗液洗脱分组,发现中性洗脱部分对羟基自由基抑制作用最强,抑制率最高可达81%;碱性洗脱部分亦具有抑制羟基自由基的效果;酸性洗脱部分抑制羟基自由基的作用不强,且占很少比例。
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In order to accomplish this change, our research have made several important break-through by revising new formulation especially in (1) catalyst mix,(2) adjustment of water content,(3) addition of chain extenders and crosslinkers, and(4) utilization of long-chained polyols. By doing so, the general performances of our new non-yellowing foam products are comparable to those of the traditional TDI based products. In certain mechanical properties in areas such as tensile strength, split tear strength, and elongation our measured values of 1.89 kg/cm2, 1.47 kg/cm, and 355 % respectively have out-performed the old materials.
能在研究中突破的原因,是因针对聚胺酯发泡体配方中的催化剂、水含量、链长剂种类、交联剂及搭配商业之改质长链三元醇,做各式各样之配方调整而成,与传统商业用之芳香族发泡体相比较,基本的成泡指数及性质相比拟上已相近,在抗张(1.89 kg/cm2,比TDI系统增加2.2倍)、撕裂(1.47 kg/cm,比TDI系统增加1.7倍)、延伸率(355 %,比TDI系统增加1.6倍)等机械性质上甚至比芳香族发泡体有更佳的表现。
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The invention relates to a nanometer bone repair material, wherein it comprises hemigydrate calcium sulfate at 100 deals, nanometer hydroxyl agustite at 10-40 deals, accelerant at 0-3 deals, manna sugar at 0-3.5 deals, and solidify liquid at 30-70 deals.
本发明提供了一种新型纳米骨修复材料,含有下列组分:半水硫酸钙100份;纳米羟基磷灰10份~40份;促凝剂0~3份,上述的骨修复材料还含有0~3.5份的甘露醇;也可以含有30份~70份的固化液。
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A ion association complex (maximum absorbance at 550 nm) was formed after the reaction of I-3 and crystal violet to determine DO in water.
连云港金兆水务有限公司,江苏连云港 222005〖摘要〗在碘量法测定水中溶解氧的基础上,利用 I-3与结晶紫在聚乙烯醇存在下结合成电中性的离子缔合物,以碘酸钾为标准溶液,与过量碘化钾反应生成碘,加入结晶紫后在550 nm 处有最大吸收的原理测定水中溶解氧,优化了试验条件,考察了共存离子的干扰。
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Diethylene glycol in toothpaste sample was extracted with mixture of methanol and water(mixed in the ratio of 4 to 1 by vol.),and after centrifuging,the supernatant solution was used for GC analysis.Chromatographic conditions for the determination were studied and optimized.
牙膏样品中的二甘醇用甲醇与水(4+1)的混合溶剂提取,用离心法分相后取上层清液进行气相色谱分析,对色谱测定的条件进行了试验并予以优化。
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Supercritical water oxidation was studied for organic wastewater mainly containing butyl alcohol, acrylonitrile, fumaric acid by a continuous self-built device.
本文利用自建的一套连续式装置进行了三种有机废液(主要的有机污染物成份分别是丁醇、富马酸和丙烯腈)的超临界水氧化研究。
- 推荐网络例句
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Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.
Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。
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I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.
我来只是现在,'歼灭战perfuming自己与胡努特,那麼,他来到和SAT 。
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The shamrock is the symbol of Ireland and of St.
三叶草是爱尔兰和圣特里克节的标志同时它的寓意是带来幸运。3片心形叶子围绕着一根断茎,深绿色。