Considering an organic chemistry approach to alkaloids using biological and ecological explanation.

OBJECTIVE : To determine content of aconitine type alkaloids in Baoxin decoction.

目的: 测定保心提取液中乌头类生物碱的含量.

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The effective ingredient for opium alkaloids, most main is morphine.

鸦片的有效成分为生物碱, 最主要的是吗啡.

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Aim To optimize the extraction procedure for alkaloids component in Kangfuxin Capsule.

目的研究康复欣胶囊处方中含生物碱成分的最佳提取工艺.

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Asteroidea ( starfish ) contains saponins, sterols, anthraquinones, alkaloids phospholipids and some other components.

海星含皂苷 、 甾醇 、 蒽醌 、 生物碱和脂类等物质.

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They include alkaloids, steroids, phenolics, saponins, tannins, resins, essential oils, various organic acids , and other componds.

它们包括生物碱 、 甾类化合物 、 酚类 、 皂角苷 、 丹宁 、 树脂 、 香精和各种有机酸等.

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It may be composed of allelochemics such as alkaloids or terpenes.

它可以由异种化合物例如生物碱或萜稀组成.

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Respiratory alkalosis may be associated with loratadine overdosage and patients should be monitored for this complication.

呼吸性碱中毒可能超剂量的氯雷他定有关,应当注意病人的这种并发症.

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Chronic respiratory alkalosis ( CRA ) , CRA plus metabolic alkalosis and metabolic acidosis are seldom.

慢性呼吸性碱中毒 、 性呼吸性碱中毒并代谢性碱中毒和代谢性酸中毒是少见的.

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Increased renal excretion occurs with both respiratory and metabolic alkalosis.

在呼吸性碱中毒和代谢性碱中毒中钾离子的肾排泄增加.

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Alkalosis and potassium depletion may be pronounced.

可能有碱中毒和缺钾.

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Recent advance in researches of alkane uptake by microorganisms was reviewed.

综述了近期在烃的微生物摄取机制方面的研究进展.

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According to the heat release rate, the reaction pathway to ignition of sample alkane is analyzed.

利用新型的绝热量热仪研究了两种典型烷烃的自加热过程,采取了增大样品容器体积和加压的方法,得到了正庚烷和正十六烷的初始反应温度 、 大升温速率和最大升温速率对应的温度.

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Conclusion: Volatile components of apple seed are organic acid, olefins, alkane, aldehyde, ketone, phenol.

结论: 苹果籽含有有机酸 、 烯烃 、 烷烃 、 醛 、 酮 、 酚类挥发性成分.

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Esters are the major components , the other chemical constituents were alkane, acids, alcohol, aldehyde and ketone.

主要成分为酯类化合物,同时鉴定出烷烃类 、 酸 、 醇 、 醛、酮类化合物.

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It'shows that alkane decomposes the least and the rate of deactivation is the slowest.

其中饱和烷烃分解率最小,催化剂失活速率最慢,为较佳的反应介质.

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Given this understanding, the authors asked whether a sufficiently long alkane might be hydrophilic.

在此基础上, 论文作者问到,是否足够长的碳链会是亲水的.

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Traditionally, it is considered hat wax is normal alkane with high molecular weight, and higher plant.

但近年来研究表明, 蜡除高分子量正构烷烃外, 还有异构烷烃和环烷烃,甚至有烯烃存在.

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Alkanes undergo reaction such as cracking, alkylation, oxidation, halogenation, nitration and so on.

烷烃能够发生裂解反应 、 烷基化反应 、 氧化反应 、 卤代反应、消化反应等.

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Advances in tungsten carbide alkanes isomerization catalysts, including their preparation and the isomerization mechanism, were reviewed.

综述了用于长链烷烃异构化的碳化钨催化剂的研究进展.

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A method for analysis n-alkanes, steranes and terpanes in oil by internal standard method was established.

采用内标法建立了原油中正构烷烃、生物标志物(甾 、 萜烷类)的分析方法.

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