碱的
- 与 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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The reasonable dewaxing method of prickly ash seed oil should be:① The low wax crude manufacture oil can use surfactant to dewax;② If the wax content is relatively high,progressive dewaxing can be adapted to reduce oil lose in the process;③ To the oil that need alkali refining,the wax can be eliminated with the free fatty acid in the process of alkali refining.
脱除花椒籽油中蜡质的合理方法应是:①含蜡量相对较低的精制粗油可选用表面活性剂法脱蜡;②当含蜡量相对较高时,为降低脱蜡过程中油的耗损率可选用分步脱蜡法脱蜡;③需进行碱炼的油,可在碱炼过程中将蜡质与游离脂肪酸一并除去。
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These conditions included original material source, reagent ratio, base solutions, power of the microwave, reaction time and so on.2, Chitosan obtained from above was modified by Schiff base type macrocycles, which was prepared by the reaction of the reagents of salicylaldehyde, glacial acetic acid, hydrobromic acid, chloroepoxy propane and the others.
反应的最优化条件为:物料比1:25;反应时间20min;NaOH溶液浓度为50%;微波功率为450w。 2、利用原料水杨醛、氢溴酸、冰醋酸等采用四步法合成了含羟基的Schiff碱型大环化合物,然后以取代方法将此Schiff碱型大环化合物负载到壳聚糖上,得到具有特殊结构与性能的壳聚糖衍生物,并得到各中间产物的红外光谱图。
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Abnormity sampling method was adopted and there was 128 sampling points in this field.The statistical laws of soil pH,organic matter,total phosphorus,total nitrogen,alkaline hydrolyzable nitrogen,available potassium and available phosphorus were analyzed, and the results indicated that the variation coefficient of soil nutrients was between 6.3% and 356.1%,pH was 5.3%.Using the geostatistica...
以土壤的pH、有机质、全磷、全氮、碱解氮、速效钾和速效磷含量为研究对象,研究其相应的统计规律,结果表明土壤各养分属性的变异系数在6.3%~35.61%之间,pH为5.3%;采用地统计的半方差函数分析,发现有机质,全氮,碱解氮和速效钾在一定范围内存在空间相关性;采用克立格方法进行最优内插,绘制了养分含量分布图,并对其空间变异进行了初步分析。
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The results indicated that the total surface basic sites was in favor of increasing catalytic activity, while the higher ratio of medium-strength basic sites was good for improving the selectivity of isophorone.
经过镧改性催化剂的表面总碱量增加,可提高催化剂的活性,但增加的碱量主要位于弱碱性位,因而不利于提高催化剂对于异佛尔酮的选择性。
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These results indicated that palmatine had one common binding site on the immobilizedβ_2-AR column,the association constant was 2.93×10~4 L/mol at pH 7.2 and 25℃,while jatrorrhizine had two bingding sites,the association constants at these two sites were 1.93×10~4 and 1.56×10~5 L/mol,respectively.And the molar ratio of weak bingding sites to strong binding sites was 93:7.Palmatine and jatrorrhizine had competed for low-affinity site in immobilizedβ_2-AR.
结果表明,盐酸巴马汀与β_2-AR只有一类结合位点,在流动相pH 7.2,温度25℃时盐酸巴马汀与β_2-AR的结合常数为2.93×10~4 L/mol;盐酸药根碱与β_2-AR有两类结合位点,在这两类结合位点上的结合常数分别为1.93×10~4和1.56x10~5L/mol,两类结合位点数的比值为93:7,且盐酸巴马汀和盐酸药根碱竞争低亲和力的结合位点。
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This paper presents petrological and geochemical data of Au-mineralization-related alkali-rich porphyries in the Beiya gold deposit and its adjacent regions, western Yunnan.
提供了与滇西北衙大型金矿床密切相关的富碱斑岩的主量元素及稀土和微量元素的分析数据,对富碱斑岩的成因、起源条件和源区类型进行了讨论。
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The Schiff base of O-ethylthonophosphoryl-dihydrazine with salicylaldehyde and its Ni, Cu, Zn complexes was synthesized.
合成了O-乙基硫代磷酰二肼的双水杨醛席夫碱(H2L)及以它为配体分别与Ni、Cu、Zn离子形成的配合物,所合成的席夫碱配体及配合物均为未见文献报道的新化合物。
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The 0-40cm soil layer soil mean value looked that mixes by the interlacing broadcasts the lawn soil ulmin, the alkaline hydrolysis nitrogen content to be highest; The fast-acting phosphorus, the fast-acting potassium are highest by the unicast awnless brome lawn content; The colleague mixes broadcasts lawn pH to be biggest.
不同播种方式下土壤有机质、碱解氮、速效磷含量在0-40cm各土层内呈现随着土层深度的增加而降低的趋势,均以0-10 cm土层土壤含量为最大;同行混播和隔行混播草地速效钾呈现降低的变化趋势,单播无芒雀麦草地则呈现先降后增再降的变化趋势,以0-10 cm和20-30 cm土层土壤含量为最大,均为80,并与其它土层间达到极显著差异;pH则呈现出增加趋势。0-40cm土层土壤平均值来看以隔行混播草地土壤有机质、碱解氮含量最高;速效磷、速效钾以单播无芒雀麦草地含量最高;同行混播草地pH最大。
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Meanwhile the novel solid base ,namely CaO-ZrO2[9]solid solution has been reported in recent years, Obviously, the acidic-basic surface and redox properties of zirconia played the significant roles, and the formed solid solution efficiently prevent the active component from lixiviated into the reaction medium.
同时,最近报道了新颖的固体碱,CaO-ZrO2固相溶液,很明显,氧化锆的酸-碱表面和还原性质起了很关键的因素,同时形成的固体溶液有效地阻止了活性成分浸出到反应介质中。
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Chiral ligands mentioned above and their complexes with acetate copper were used as enantio-selective catalysts in asymmetric cyclopropanation reactions of diazoacetate and 1,1-diphenyl ethylene. Investigations indicate that all of them reveal certain optical-selective capability, but chiral C2-symmetric 2,6-bispyridine ligands show better catalytic capability than chiral asymmetric schifF-base ligands.
选择了2个手性2,6-吡啶双噁唑啉配体和6个手性不对称席夫碱配体与醋酸铜形成的配合物作为催化剂,对重氮乙酸乙酯与1,1-二苯乙烯不对称环加成进行催化反应,发现这8个催化剂对1,1-二苯乙烯的不对称环丙烷化反应都表现出了一定的光学活性诱导能力,手性2,6-吡啶双噁唑啉-铜类具有比手性Schiff碱-铜类更好的催化性能。
- 推荐网络例句
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Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".
歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车,和一双合并为一移交&整个lotta爱&。
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This is Kate, and that's Erin.
这是凯特,那个是爱朗。
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Articulate the aims, objectives and key aspects of a strategic business plan.
明确的宗旨,目标和重点战略业务计划。