皂化
- 与 皂化 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 distillate stream followed by saponification and acidulation was directly to concentrate VE by molecular distillation.
分子蒸馏馏出液经皂化、盐酸酸化、水洗干燥后作为分子蒸馏浓缩VE原料。
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The distillate stream followed by saponification and acidulation was directly to concentrate V_E by molecular distillation.
分子蒸馏馏出液经皂化、盐酸酸化、水洗干燥后作为分子蒸馏浓缩VE原料。
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Sodium zinc chlorophyllin was prepared from the chlorophyll extracted through the processes of saponification, acidification, ironing and basification.
以松针为原料,利用溶剂从中提取得到叶绿素,经过皂化、酸化、锌代及加碱成盐等过程,制备得到叶绿素锌钠盐,并测定了其对光、热及几种食品添加剂的稳定性。
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Corrosion resistance and adhesive force to coating of works could increase strongly by seal treatment to bluing works in silane coupling agent.
用该封闭剂对发蓝工件进行封闭处理后,能明显提高工件的抗蚀性和对涂层的附着力,解决了因皂化和铬酸盐钝化而带来的涂层附着力较差和环境污染等问题。
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It was found that sodium copper chlorophyllin showed good thermal stability at the temperatures below 90 ℃ and its photo-stability was satisfactory.
以绞股蓝为原料,利用有机溶剂萃取得到叶绿素,经过皂化、酸化、铜代等过程,制备得到叶绿素铜钠盐,并测定了其对光、热及几种食品添加剂的稳定性。
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On the basis of MEBT, a new technique hypothesis of injecting MEBO under the eschar was proposed to have 6 biochemical reactions available, such as hydrolysis, enzymolysis, saponification, rancidify, lipofication, esterification of MEBO with necrotic tissue of the eschar, then to realize liquefaction and quick defluxion of necrotic tissues, This finally to play a role of regenerative action of MEBO in situ to turn potential regenerative cells into skin stem cells that would further proliferate and differentiate to form skin tissues, reaching the goal of physiologically repairing wounds.
最后提出了在烧伤湿性医疗技术正规治疗的基础上,同时进行痂下注射MEBO的新技术设想,其目的是使痂下组织尽早接受MEBO的治疗,痂下发挥MEBO的水解、酶解、皂化、酸败、脂化、酯化六大生物化学反应,促使坏死组织痂下痂外一起液化,尽快脱落;而且在痂下发挥MEBO原位再生作用,使潜能细胞转变成皮肤干细胞,干细胞进一步增殖分化形成皮肤组织,达到创面生理性修复之目的。
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The surface hydroxyl group onto magnetic polyvinyl acetate nanoparticles can be obtained by saponification reaction on their surface.
结果表明,磁性聚苯乙烯颗粒与丁二酸酐发生Freidel-Crafts酰基化反应,可以在颗粒表面引入少量羧基;磁性聚甲基丙烯酸甲酯颗粒分别与乙二醇、二缩三乙二醇、聚乙二醇等发生醇-酯交换反应,可以在颗粒表面接枝不同分子链长度的末端羟基;磁性聚醋酸乙烯酯颗粒经过醇解或皂化反应可以获得表面羟基;磁性聚丙烯酸甲酯颗粒通过乙二胺或1,6己二胺的胺解反应可以得到表面氨基,继而与一氯乙酸反应可以引入亚胺二乙酸基团。
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The yield of borneol and isoborneol was 52.93%,and selectivity for borneol was 60.46%at the conditions of programmed temperatures,reaction time 315 min,saponification time 1h,mass part of catalyst 5%,and terpineol:chloroacetic acid 100∶25.
酯化反应采用程序升温,时间315 min,皂化时间1 h。催化剂用量为松节油质量的5%,松节油∶氯乙酸为100∶25时,龙脑得率为52.93%,正龙脑的选择性为60.46%。
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The chemical method include treating with sulfuric acid,saponification,acylation, esterification, etc.
化学方法包括酸洗法、皂化法、酰化法和酯化法等。
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Firstly, 3-ethylthiobutanal was prepared from crotonaldehyde reacting with ethanehiol in triethylamine with high yield. Secondly, methyl acetoacetate was converted to 6-ethylthiohept-3-en-2-one by three steps via hydrolysis, condensation with 3-ethyltio-butanal and dehydration, then 6-ethylthiohept-3-en-2-one was cycloco ndensed with dimethyl malonate by Michael addition and Claisen condensation, followed by saponification and decarboxylation to give the intermediate of 5-(2-ethylthiopropyl)-cyclohexane-1,3-dione.
首先,以巴豆醛与乙硫醇为原料,在三乙胺的催化作用下高收率制得3-乙硫基丁醛;然后从乙酰乙酸甲酯出发,通过碱水解、与3-乙硫基丁醛缩合、脱水三步反应合成6-乙硫基-3-烯-2-庚酮,接着6-乙硫基-3-烯-2-庚酮与丙二酸二甲酯通过Michael加成和Claisen缩合成环,再通过皂化和脱羧反应生成中间体5-[2-丙基]-1,3-环己二酮;再与丙酸酐反应丙酰化,最后与0-3-氯-2-丙烯基羟胺肟化,得到目标化合物烯草酮。
- 推荐网络例句
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As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.
每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。
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Maybe they'll disappear into a pothole.
也许他们将在壶穴里消失
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But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.
但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。