甲醇
- 与 甲醇 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The factors which cause deactivation of catalysts are different because of the difference in the conditions of catalytic reactions.
合成甲醇的反应条件不同,造成催化剂失活的原因也有所不同。
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The decarbonization gas prepared by shift reaction and decarbonization of coal gas has low H/C ratio.
煤气经变换、脱碳后作为新鲜气生产甲醇,气体中氢碳比偏低。
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By using a vitrating digital densimeter (DMA602/60), the densities of glycine and alanine in aqueous methanol, ethanol and propanol solutions were measured at 298.15 K, and the apparent molar volumes calculated. According to McMillan-Mayer approach, the volumetric interaction coefficients were evaluated.
用DMA602/60型震动管数字密度计测定了298.15 K下甘氨酸、丙氨酸分别在纯水和四个不同浓度甲醇、乙醇和丙醇水溶液中的密度,计算了相应的表观摩尔体积,用最小二乘法拟合了氨基酸在醇水溶液中的标准偏摩尔体积。
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The dynamic characteristics is studied in a fixed bed reactor of inner diameter 1. 56cm, resin packing height 96cm. The effect of mass ratio of methanol to deodorizer distillates, temperature, residence time, and flow rate to conversion of free fatty acids has been studied.
在内径为1.56cm,高度为96cm的树脂床层中考察了固定床连续酯化反应的动态特性,研究了甲醇与脱臭馏出物的配比、反应温度、接触时间和物料流量等因素对脂肪酸转化率的影响。
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In the present study, black soybean koji were first prepared with Aspergillus awamori. The change of total phenolics , isoflavone content and antioxidant activity of black soybean and black soybean koji after heating at various temperature(40,60,80,100℃)for 30 min and storage at 4℃ and 25℃ for 120 days under different packaging conditions(desiccant + deoxidant, desiccant, deoxidant , without desiccant and deoxidant)was investigated. The antioxidant activity examined included DPPH radical-scavenging effect, Fe2+-chelating effect, trolox equivalent antioxidant capacityand reducing power.
本研究以Aspergillus awamori作为菌酛制备黑豆麴,探讨黑豆及黑豆麴经不同温度(40、60、80及100℃)加热30分钟,以及在不同包装条件(乾燥剂+脱氧剂、乾燥剂、脱氧剂及不添加任何食品保存剂)与不同温度(4℃及25℃)下储存120天过程中总酚类化合物含量、总异黄酮素含量及异黄酮素组成及其甲醇萃取物抗氧化活性之变化,抗氧化活性之检测项目包括DPPH自由基清除能力、亚铁离子鳌合力、Trolox equivalent antioxidant capacity及还原力。
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PartⅡTransform the yeast, screen the excellent expression yeast strain, induce the yeast to express the fusion protein and depurate the target protein. The recombination plasmid was transformed into the yeast GS115 successfully by means of electrotransformation. The excellent yeast strain was got by G418 screening. We achived the yeast supernatant including target protein induced by methanol.
第二部分:酵母的转化、蛋白高表达菌株的筛选、重组蛋白的诱导表达及纯化实验利用电转化的方法,成功地将重组质粒pPIC9k-PTD-hA20导入毕赤酵母GS115,并通过G418浓度梯度筛选得到了蛋白高表达菌株,并对蛋白高表达菌株进行甲醇诱导表达,得到了含有目的蛋白的酵母上清液。
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METHODS:Using Dual-wavelength TLC-scanning,the sample was prepared through the column full of D101 macroporous resin with n-butanol extract from the aque ous solution of the granules which had been washed by ether,developer is chloroform-methanol-water(13∶10∶7)(stored at less than 10℃,the lower),detecter is 510nm,reference is 700nm.
双波长薄层扫描法,经乙醚洗涤、正丁醇提取和D101大孔吸附树脂柱层析法制备样品,以氯仿-甲醇-水(13∶7∶2)下层液为展开剂,检测波长为510nm,参比波长为700nm。
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The article puts forward the detecting method of using normal butyl alcohol as outer standard substance, using PEG- 20M as fixation phaseand and hydrogen flame detecter, using methanol as solvent, detecting the content of trace MMA from composite material of artificial skull with gas phase chromatography method.
采用氢气焰离子化检测器,以正丁醇为外标物,PEG-20M为固定相,甲醇作为溶剂,气相色谱法测定复合材料人工颅骨中微量MMA的含量。
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Medthod: Shim-packC18 column was used with a mobile phase of methanol-phosphate buffer 0~3.5min (10:90),3.51~10min (30:70)gradient elution,velocity of flow: 0.8mL·min-1 ;column temperature: 32℃;volume of injection: 20μL; the wavelength of detecter was set at 254nm.
用岛津Shim-packC18分析柱,甲醇:磷酸缓冲液梯度洗脱,0~3.5min(10:90),3.5min后(30:70),流速:0.8mL·min-1,检测波长:254nm,柱温:32℃,进样量:20μL。
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The results indicated that the extracts could inhibit the growth of the larvae of the diamondback moth.
室内测定了沙冬青茎甲醇提取物对小菜蛾幼虫生长发育的抑制作用。
- 推荐网络例句
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This one mode pays close attention to network credence foundation of the businessman very much.
这一模式非常关注商人的网络信用基础。
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Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.
扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。
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There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。