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- heterocyclic polyamines 杂环多胺
- An atom other than carbon in the structure of a heterocyclic compound. 杂环原子杂环化合物结构中的除了碳之外的原子
- And the other in Linhai,Zhejiang will mainly develop heterocyclic chemicals. 另一个设在浙江临海,以杂环化学品研发和产品工业化开发为主。
- Robert C. Elderfield. Heterocyclic Compounds [M]. 1952.Volume 4. 502-503. 花文廷.;杂环化合物[M]
- A series of researches indicated: direct linkage of heterocyclic to thio-ace... 一系列的研究说明:刚性杂环直接连硫乙酸是搭建新型材料可行的方法。
- Cyclohexanone and n-butanol as solvents,the process has been investigated to extract polyethylene polyamines. 以环己酮和正丁醇为溶剂,对多乙烯多胺萃取工艺进行了研究。
- Separation and analysis method of polyamines polyphenyl methane (MDA) by the LC ESI/MS was researched. 讨论了应用液相色谱 电喷雾质谱联用 (LC ESI/MS)分析多氨基多苯基甲烷的方法。
- The changes of polyamines during peanut leaf senescence of two different senescent type peanut varieties were studied. 在大田条件下以两个不同衰老型花生品种为材料,研究了叶片衰老过程中多胺的变化。
- Microwave Irradiation Accelerated Detosylations of Poly(P-tosyl) Macrocyclic Polyamines. 魏俊发; 石先莹; 何地平; 马别厚.
- Why the section of polyamines and calmodulin was edited into the chapter of plant growth substances? : 云南师范大学学报(自然科学版) 为什么把多胺和钙调素编入植物生长物质?
- The changes of the content of polyamines (PAs) were also investigated in the leaves of Hydrocharis dubia. 实验同时检测了镍胁迫下水鳖叶片内多胺的含量的变化。
- The chemical behaviour of heterocyclic compounds is governed by the same factors that govern all chemical behaviour. 杂环化合物的各种反应与其它化学反应一样,均为相同的因素所制约。
- We have, therefore, in both of the examples above, heterocyclic compounds with "built-in" or latent functionality. 上述两例中的杂环化合物,都具有“固有的”或潜在的官能基。
- Many constituents are mutagens and carcinogenic such as alkenes, nitrosamines, polynuclear aromatic and heterocyclic hydrocarbons, amines . 烟草的很多成分都会引起有机体突变以及致癌;如烯烃化合物;亚硝胺;多核芳香烃以及多环碳氢化合物和铵.
- It showed that paclobutrazol decreased the polyamines in young leaves, but increased the polyamines in matrured leaves and delayed senescence at the same time. 结果证明多效唑对内源多胺的影响较复杂,多效唑降低了幼嫩叶片的多胺含量,却提高了成熟叶片衰老阶段的多胺含量,并起到延缓衰老的作用。
- Polyamines are a group of physiologically active substances in plants and their metabolic changes have a close relation to flower bud formation and development in high plants. 摘要多胺是植物体内一类生理活性物质,其代谢变化与高等植物的花芽形成和发育关系密切。
- Purine: Any of a class of heterocyclic compounds with a two-ring structure composed of carbon and nitrogen atoms. 嘌呤:嘌呤是对由碳、氮原子组成的双环结构的杂环化合物的统称。
- Azole:a class of organic compounds having a five-membered heterocyclic ring with two double bonds. 氮杂茂:一种由五种杂环元素,两组粘合剂组成的有机化合物。
- Piperazine was separated from ethylenediamine byproduct polyethylene polyamines mixture by refrigeration and azeotrope distillation. 通过冷冻、共沸蒸馏,从多乙烯多胺混合物中分离出哌嗪。
- A class of organic compounds having a five-membered heterocyclic ring with two double bonds. 氮杂茂一种由五种杂环元素,两组粘合剂组成的有机化合物。