醚
- 与 醚 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Zhizi's distillage could promote absorption of hematoma, relieve soakage of microglia, and improve pathologic changes, so that it could improve effects of intracerebral hemorrhage in rats.
栀子提取物有效成份环烯醚萜总甙能显著减轻脑出血大鼠血肿大小、低小胶质细胞的浸润及改善组织病理学变化等,对脑出血有一定改善作用。
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The antifungal activities of these materials were investigated and build foundation to develop low poison plant antifungal products. In experiment, polyphenols were extracted by reflux ectraction method which applyed petroleum ether to degrease and methyl alcohol solvent. Phenolic hydroxyl were examined and inspected by colour-developing reaction and the content of total polyphenols was determined by UV-spectrophotometry. Screening test were performed to the antifungal activities of polyphenol extraction by the tube dilution method to the selected ten pathogenic fungus such as Dothiorella gregaria, Rhizoctonia solani, Phyllosticta pirina, and the minimal inhibitory concentration were measured. The column chromatography and thin layer chromatography were applyed to separate and analyse cortex extracts of Dracaena cochinchinensi Lour.
实验部分采用以石油醚脱脂,甲醇为溶剂的回流提取法来提取植物多酚,用显色反应检识酚羟基;采用紫外分光光度法对多酚粗体物进行总多酚含量的测定;选取了聚生小穴壳菌、立枯丝核菌、梨叶点霉等10株常见农林业致病真菌,采用试管液基稀释法对多酚粗提取物进行了抗真菌活性筛选试验,并测定其最低抑菌浓度;采用柱层析法和薄层层析法对其中抑菌效果较好的龙血竭进行分离分析,根据其中3种化合物的光谱数据UV、IR、~(13C-NMR、1H-NMR和MS鉴定其结构。
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In Granards' reactionof fluorinated β-ketophosphonium salts we found differentGranard reagents give different reaction mechanisms andPhMgBr realized the enolate reaction of fluorinatedβ-keto-phosphonium salts.
在研究含氟β-酮基鏻盐的β位亲核加成反应中,我们利用含氟α-烷氧基-β-酮基鏻盐与有机锂试剂的亲核加成反应一锅法高度立体选择性地合成了E式或Z式三氟甲基的烯醚类化合物。
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The enzymolytic products identified were:diisopro-pylaminoethanethiol through the breakdown of P-S bond, and its oxidized product, N, N'-dithiodiethylene-bis ; and diisopropyla-minochloroethane through the breakdown of S-C bond.
VS与电鳐乙酰胆碱酯酶作用的主要产物是: P—S键断裂产物二异丙氨基乙硫醇,该化合物在水溶液中不稳定,可进一步氧化为N,N'-双二异丙氨基乙基二硫醚;S—C键断裂产物二异丙氨基氯乙烷。
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Tritici with MICs as 80 and 150μg/ml . The MICs of a main secondary metabolite of YS 4108, 3-methylphenol ether against Candida albicans, Tricophyton rubrum, Epidermophyton floccosum, Cunninghaghmella elegans and Aspergillus niger were 10, 30, 20, 20 and 50μg/ml, respectively.
来源于海洋真菌YS 4108的一个甲基酚醚表现出对白色念珠菌、红色毛癣菌、絮状表皮癣菌、雅致小克银汉菌和黑曲霉等五株人类病原真菌的良好抗菌活性,MIC分别为10、30、20、20和50μg/ml。
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It is not known whether this is associated with epileptiform EEG similar to S.
还不清楚是否类似七氟醚伴有癫痫样脑电图。
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A rapid increase in the concentration of desflurane also induces tachycardia but is not associated with epileptiform EEG.
快速增加地氟醚浓度诱发心动过速不伴有癫痫样脑电图。
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Tachycardia during increasing concentrations of D is not associated with epileptiform EEG.
地氟醚浓度增加时伴有心动过速不伴有癫痫样脑电图。
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A rapid increase in the concentration of S frequently induces epileptiform EEG during normoventilation.
七氟醚快速的增加浓度在通气正常时经常可诱发癫痫样脑电图。
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To synthesize the octreotide, Phe-Leu-Glu-Glu-Leu and C_(15)H_(31)-CO-Lys-Thr -Thr-Lys-Ser peptides, the strategies are as followings: Fmoc- group as protective group for α-NH_2; TBTU, DIEA and HOBt as coupling reagent; and ethanedithiol -phenol - thioanisole - H_2O - TFA ( 2.5:5:5:5:82.5 , V/V ) as cleaving solution.
采用Fmoc固相合成法,以苯并三哗四甲基脲四氟硼酸盐、二异丙基乙胺和1-羟基苯骈三氮唑为缩合剂;苯酚—乙二硫醇—苯甲硫醚—水—三氟乙酸(5:5:2.5:5:82.5,V/V)为切割试剂,合成了奥曲肽、Phe-Leu-Glu-Glu-Leu及C_(15)H_(31)-CO-Lys-Thr-Thr-Lys-Ser三种小分子多肽,并对奥曲肽的合成规模进行了放大。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力