安息香酸
- 与 安息香酸 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 result indicates that those four resuscitation-inducing aromatic herbs mainly contain volatile oil ,and all contain alicyclic compounds; the volatile oil of Borneolum Syntheticum and Styrax both contain Sesquiterpenes of caryophyllene; as resin herbs , Styrax and Benzoinum both contain vanillin, resin ester and balsamic acid .
结果表明,四味芳香开窍药主含挥发油,均含有脂环化合物,并存在一些共有成分,如龙脑冰片与苏合香挥发油中均含有倍半萜类成分石竹烯;苏合香和安息香皆为树脂类中药,两者均含有香荚兰醛成分,尚含树脂酯,香脂酸等。
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Furthermore, different methods of storage and preservation (1.0% benzoic acid, 1.0% sorbic acid, 0.05% and 0.5% dialdehyde starch) were compared to conventional preservation procedures.
此外, 存储和保存的不同的方法(1.0%安息香的酸, 1.0%山梨酸, 0.05%并且0.5% dialdehyde淀粉)与常规的保存过程相比。
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Results and Discussion Flavin 2 was synthesized from 3,4-diaminobenzoic acid (3) and alloxane monohydrate (4) in good yield according to standard procedures (Scheme 1).9 The first step afforded flavin 5 in quantitative yield, in 1:1 ratio of the 7- and 8-hydroxycarbonyl regioisomers, and was subsequently methylated by methyl iodide to form flavin 6 in 86% yield, in a 3:2 ratio of the 7- and 8-regioisomers.
结果与讨论黄素二是合成3,4 -二氨基安息香的酸( 3 )和氧嘧啶水合物( 4 )在良好的收益率根据标准程序(计划1) 0.9的第一步,给予黄素五,在定量产量,在1:1的比例, 7 -8 -羟基羰基 regioisomers ,并随后甲基甲基碘形成黄素6月在86 %的产量,在一个3:2的比例, 7 -和8 regioisomers 。
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The result indicates that those four resuscitation-inducing aromatic herbs mainly contain volatile oil ,and all contain alicyclic compounds; the volatile oil of Borneolum Syntheticum and Styrax both contain Sesquiterpenes of caryophyllene; as resin herbs , Styrax and Benzoinum both contain vanillin, resin ester and balsamic acid .
结果表明,四味芳香开窍药主含挥发油,均含有脂环化合物,并存在一些共有成分,如龙脑冰片与苏合香挥发油中均含有倍半萜类成分石竹烯;苏合香和安息香皆为树脂类中药,两者均含有香荚兰醛成分,尚含树脂酯,香脂酸等。中国论文联盟http://www.lwlm.com
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Resolution of benzoin,hydrobenzoin and α- phenethyl alcohol with-phenylglycine based chiral stationary phase(Chirex 3001)in the normal-phase conditions were studied.
正相模式下研究了安息香、氢化安息香及α-苯乙醇在苯基甘氨酸型手性固定相Ch irex 3001上的拆分,探讨了流动相组成及柱温对手性拆分效果的影响。
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This thesis is constituted by four parts: In the first part a summarization is given on the main total synthetic methods of isoflavones, for example, deoxybenzoin method which generally involves two steps wherein a phenol is reacted in the presence of a Lewis acid with phenylacetic acid to generate an intermediate deoxybenzoin which is then cyclized with a one carbon electrophile.
本论文主要工作包括四部分:第一章综述了近年来全合成异黄酮的主要方法:脱氧安息香法,是以多羟基苯酚与苯乙酸或苯乙腈在Lewis酸存在下,反应生成中间体脱氧安息香,然后再与亲电碳试剂进行关环反应生成异黄酮。
- 推荐网络例句
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We will see more and more activist government policies that distinguish economic activities according to the nationality of the actors.
我们将看到越来越多激进的政府政策,这些政策根据企业的国籍来区分经济活动。
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If we can prove the independence of an axiomatic system, then we can guarantee the conciseness of this system, ie.
如果能够证明某个一阶谓词系统的独立性,那么就能够保证该系统的建立是精炼的,即没有任何一条公理或推理规则是多余的。
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You can save 1,200 pounds of carbon dioxide if you cut down your garbage by 10%.
如果能使你的垃圾废物减少10%,就能减少1200磅的二氧化碳排放。