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Isolation and Identification of Klebsiella ozaenae from Pigs
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猪臭鼻克雷伯氏菌的分离与鉴定 |
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Isolation and Identification of Nodulin Genes Involved in Symbiotic Nitrogen Fixation of Astragalus Sinicus L.
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紫云英参与共生固氮的结瘤素基因的分离与鉴定 |
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Isolation and phylogenetic analysis of an alkaliphilic strain of the genus Kocuria
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株嗜碱克氏菌属菌株的分离及系统发育分析 |
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Isolation and purification of rat islets
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大鼠胰岛分离和纯化 |
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Isolation of Newcastle viruss and Identification of its Biology Character
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鸡新城疫病毒的分离及生物学特性的鉴定 |
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Isolation of Thermophilic Bacteria Thermus sp. YBJ- and Cloning of Amylase Gene
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嗜热菌Thermus sp.YBJ-的分离和淀粉酶基因的克隆 |
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Isolation of the Stains Degrading Chlorobenzene
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氯苯降解菌株的选育 |
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Isolation, Purification and Structural Elucidation of EPS-Ⅰ,an Extracellular Polysaccharide from Enterococcus durans
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Enterococcus durans产胞外多糖EPS-Ⅰ的分离纯化和结构分析 |
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Isomers and Synthesis of Benzene
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苯的异构体及其合成 |
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Isoquinoline alkaloids of Litsea euosma were studied for the first time and compounds were obtained. The structure of these compounds were elucidated as boldine ,norisoboldine ,reticuline ,β-sitosterol and β-daucosterol by spectral analysis.
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首次对清香木姜子(LitseaeuosmaW.W.Smith)中的异喹啉生物碱进行了研究,采用硅胶柱层析、重结晶等分离手段从中分离纯化得个化合物,通过现代波谱技术及与标准品对照等方法鉴定了它们的结构,包括 个异喹啉生物碱和β 谷甾醇及β 胡萝卜甙. |
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Isosafrole was synethesized through the isomerization of safrole with KOH and NaOH above the temperature of 00℃. 9% safrole was converted and the yield was 9%, the purity of the product was 99%.
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在NaOH与KOH作用下 ,在 0℃以上使黄樟油素异构化 ,合成了异黄樟油素 ,转化率达 9% ,收率达 9 % ,产品纯度 99%以上。 |