- 更多网络例句与含碱的相关的网络例句 [注:此内容来源于网络,仅供参考]
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Macerate 1.0g of the powdered sample with 20.0 ml of chloroform plus 0.3ml of 25% NH_4 OH in a glassstoppered flask overnight.
本文报道用不含粘合剂的氧化铝薄层,以二甲苯-丙酮-无水乙醇-二乙胺(50:40:10:0.6)为展开剂分离茄科植物中的莨菪碱、东莨菪碱、山莨菪碱、樟柳碱及红古豆碱等五种莨菪烷生物碱,用改良Dragendorff试剂-Wagner试剂(1:1)显色,定量收集莨菪碱、东莨菪碱及山莨菪碱的斑点,莨菪碱和东莨菪碱用氨甲醇洗脱,蒸干洗脱液后分别用pH 5.6及pH 4.5的溴甲酚绿溶液作比色测定;山莨菪碱用4%醋酐氯仿洗脱,蒸干洗脱液后用pH 5.6的溴甲酚绿溶液作比色测定。
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Most importantly, with analyzing the calcined cinder by X-ray powder diffraction and scanning electron microscope, it was clear that at an appropriate calcination temperature, the activated SiO2 and Al2O3 in alkaline coal-cinder would react with the decomposed fused Na2CO3 to form a new neutral matter nepheline(NaAlSiO4)and other amorphous silicate compounds,causing an obvious reduction of the alkali content in coal-cinder.
采用X射线粉晶衍射及扫描电镜对煅烧后的灰渣进行表征,揭示了含碱灰渣煅烧脱碱过程的实质,即在适宜煅烧温度下,含碱灰渣中被活化的主要矿物质SiO2、Al2O3和熔融并分解的Na2CO3(分解为修饰网络氧化物Na2O)等发生化学反应转变为中性物质霞石(NaAlSiO4)及其他无定形复合硅酸盐,从而降低了灰渣中的碱含量。
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Flushes is cool when should take down the jewelry, meets 碱 a kind of product by against jewelry, after specially contains the chlorine bleaching agent and the silver contact, can have the chlorination to respond, causes the silver personal ornament rapid nigrescence.
冲凉时应取下首饰,以防首饰遇到碱类产品,特别是含氯的漂白剂和银接触后,会起氯化反应,使银饰迅速变黑。
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The nitrocellulose filters are then placed on wet filter paper containing alkali, which denatures the DNA.
再将硝酸纤维素滤膜置于含碱的湿滤纸上,碱的作用是使DNA变性。
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We discussed the syntheses of two different types of plant alkaloids in this thesis. In part A, we aimed at total syntheses in two kinds of aporphine alkaloids, lirioferine and boldine. In part B, we developed a tactic about radical cyclization in polyhydroxylated piperidine synthesis.
中文摘要本篇论文中探讨了两种不同种类植物碱的合成,在A部分中,我们针对阿朴吩类天然物中的鹅掌楸啡碱与波儿丁碱做了各自的全合成研究;在B部分中,我们发展了一种自由基环化策略运用在含多羟的哌啶类化合物之合成上。
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The nitrocellulose filter s are then placed on wet filter paper containing alkali, which denatures the DNA
再将硝酸纤维素滤膜置于含碱的湿滤纸上,碱的作用是使DNA变性。
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The cobalt blue bulb glass manufactuerd by soda-lime silicate is substituted for different proportion of potassium, sodium and lithium.
透过这些钴蓝玻璃的灯泡发光钨丝呈现不同的颜色,含大离子半径碱的呈红黄混合色,含小离子半径碱的呈纯正红色。
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A plant adapted to living in a dry, arid habitat; a desert plant .
旱生植物适应在干燥含碱的土壤里生长的植物;沙漠植物
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This paper describes the effect of alkaline admixtures on AAR of concrete.
本研究介绍了混凝土含碱外加剂对混凝土碱—骨料反应的影响,并定量地提供了含碱外加剂对混凝土碱—骨料反应影响作用的大小。
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Or crossing the great desert, the alkaline plains, I beholdenchanting mirages of waters and meadows
或者横渡大沙漠和含碱的平原,我看见海浪和草地的迷人的蜃
- 更多网络解释与含碱的相关的网络解释 [注:此内容来源于网络,仅供参考]
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alcoholic potash:钾碱醇液 氢氧化钾的酒精溶液
alcoholic poisoning | 醇中毒 | alcoholic potash | 钾碱醇液 氢氧化钾的酒精溶液 | alcoholic | 含酒精的 酗酒者, 酒鬼
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colubrine:可鲁勃林
[化学成分]成熟种子含生物碱1.5~5%,其中主要是番木鳖碱(Stry-chnine,士的宁),约占总碱的35~50% ;其次为马钱子碱(Brucine),含量与番木鳖碱大致相等;并有少量可鲁勃林(Colubrine)、番木鳖次碱(Vomicine)等;又含番木鳖甙(Loganin).
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alkali feldspar:碱长石
alkali fastness 耐碱性 | alkali feldspar 碱长石 | alkali ferous 含碱的
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theobromine:可可豆碱
并含微量的可可 豆碱(Theobromine),茶碱(Theophylline)和黄嘌呤(Xanthine).绿茶中含缩合糅质 (多酚化合物)约10-24%,红茶因经过发酵,糅质含量减少,一般仅有6%左右.
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alkaliferous:含碱的
alkalic?calcic rock sreies 碱钙性岩系 | alkaliferous 含碱的 | alkalimeter 碱度计
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alkaliferous:含碱
alkalifast 耐碱的 | alkaliferous 含碱 | alkalifybasification 碱化
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cupreine:铜色树碱
cuprate | 铜酸盐 | cupreine | 铜色树碱 | cupreous | 铜的, 铜色的, 含铜的
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hydrofluoric:[化]含氢和氟的,含氟化氢的,氢氟酸的
parthenicine 银胶菊碱 | hydrofluoric [化]含氢和氟的,含氟化氢的,氢氟酸的 | tachygenesis 简捷发生(昆虫幼期的紧缩发生) 加速发生
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coal-bearing:含煤的
coal-alkali reagent 煤碱剂 | coal-bearing 含煤的 | coal-bed gas 煤层气
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coniine:毒芹碱
各具有不同的结构式,因此彼此间的性质会有所差异.但生物碱均为含氮的有机化合物,总有些相似的性质,如: 1)形态:大多数生物碱是结晶形固体;有些是非结晶形粉末;还有少数在常温时为液体,如烟碱(Nicotine),毒芹碱(Coniine)等.