查询词典 BORNEOL
- 与 BORNEOL 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Of the total volatile substances detected; the major volatile compounds were borneol, isoborneol and benzyl benzoate.
主要挥发性组分是冰片、异冰片和苯甲酸苄酯。
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The common chemical constituents were juniper camphor,1,3,3-trimethylcyclohex-1-ene-4-carboxaldehyde,borneol,α-curcumene,α-bisabolol,cis-caryophyllene,benzyl benzoate,methyl β,β-dimethylbenzenepropanoic acid ester,2,4-decadienal and heneicosane in the essential oil of the five cultivars' Hangjuhua.Among them,juniper camphor is most which were composed of 11.96%,10.51%,10.95%,13.28% and 10.77% of the total essential oil,and methyl β,β-dimethylbenzenepropanoic acid ester is second,which were composed of 1.51%,1.86%,2.52%,4.89% and 2.51% of the total essential oil,respectively.
5种栽培类型杭菊花挥发油中共有成分为1,3,3-三甲基环己-1-烯-4-甲醛、冰片、α-姜黄烯、α-甜没药萜醇、顺式石竹烯、桧脑、安息香酸苄酯、β,β-二甲基苯丙酸甲酯、2,4-癸二烯醛和二十一烷;其中桧脑含量最高,分别占挥发油总量的11.96%,10.51%,10.95%,13.28%和10.77%,为5种栽培类型杭菊花挥发油中最具特征的成分;其次是β,β-二甲基苯丙酸甲酯,分别占挥发油总量的1.51%,1.86%,2.52%,4.89%和2.51%。
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So it is necessary to study on the stability of the borneol in the preparations.
因此,研究如何提高冰片在制剂中的稳定性,具有重要的实用价值。
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Objective: To find a new way of synthesizing borneol.
目的:研究一种合成冰片的新方法。
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It was one of mechanisms for borneol opening BBB.
这是冰片开放血脑屏障的作用机制之一。
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OBJECTIVE:To observe the effects of borneol affecting the transdermal amount of drugs.
目的:考察龙脑对多种药物透皮作用的影响。
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Borneol was found, during our research, a special compound in the Traditional Chinese Medicine, which always referred to both borneol and isoborneol.
在研究过程中我们发现,在中国传统的中医药体系里,冰片是一种独特的药物,其主要成分为结构明确的龙脑、异龙脑。
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The yield of product was 56.1% when rare-earth composite solid superacid SO(superscript 2- subscript 4)/ZrO2-CeO2 was used as catalyst at dosage of 3 % of the mass of β-pinene, while mass ratio of borneol to isoborneol in the product reached 46.0:23.2, showing higher borneol selectivity than other catalysts.
当用稀土复合固体超强酸SO(上标 2-下标 4)/ZrO2-CeO2为催化剂,用量3%时,粗龙脑产率为56.1%,但对正龙脑的选择性高于其他催化剂,正、异龙脑比为
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The synthesis of eight compounds ( borneol ester and isoborneol ester) and other esters catalyzed by nanometer solid superacids were also researched. In addition, we still analyzed the distinction of esterification yield of borneol ester and isoborneol ester. The particle size, surface area, changes of profile and acidity of nanometer solid superacids were mensurated and analyzed by TEM, BET, XRD, IR and acid indicator.
对纳米固体超强酸催化合成系列正、异冰片酯及其它酯的反应作了一定的研究,论文分析了正、异冰片酯化反应的差异,并用TEM、BET、XRD、IR及酸标指示剂等方法和手段对纳米固体超强酸的粒度、比表而积、形貌变化及其酸性大小进行了分析和测定,通过IR、~1H NMR、~?
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Thirdly, on the basis of the optimal reaction conditions of synthesis of borneolacetate, using borneol 、 isoborneol, acetic acid, propionate、 butyrate and isobutyric acid as the starting material and nanometer solid superacid (S_2O_8)~(2-)/ZrO_2 or (SO_4)~(2-)/ZrO_2-La_2O_3 as the catalyst ,a series of compounds ( borneol ester and isoborneol ester ) which had six new compounds were prepared.
以合成乙酸冰片酯的最佳反应条件为基准,采用纳米固体超强酸S_2O_8~(2-)/ZrO_2或SO_4~(2-)/ZrO_2-La_2O_3为催化剂,以冰片、异冰片、乙酸、丙酸、丁酸、异丁酸为原料,合成了系列正、异冰片酯(其中6个末见文献报道)。
- 推荐网络例句
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But we don't care about Battlegrounds.
但我们并不在乎沙场中的显露。
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Ah! don't mention it, the butcher's shop is a horror.
啊!不用提了。提到肉,真是糟透了。
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Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.
Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。