烟碱
- 名nicotine
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[nicotine] 俗称尼古丁。一种极毒的挥发性的弱碱性液体生物碱C 10 H 14 N,构成烟草的主要有效成分
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这些尼古丁替代品中的烟碱含量足以刺激心脏。
The amount of nicotine in these nicotine substitutes can be enough to excite the heart .
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大鼠烟碱依赖对脑皮层M、N胆碱能受体的影响
Effect of nicotine dependence on m , n cholinergic receptors in rat brains
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烟草中游离烟碱与其pH值之间的关系
Relationship between Free Nicotine in Tobacco and its pH Value
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卷烟烟气pH与烟气总粒相物中游离烟碱的关系
Studies on the relationship between pH value and free nicotine in cigarette smoke
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结果表明:烟碱含量与施N量呈正相关。
The results showed that there was positive correlation between nicotine content and nitrogen level .
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B,Mg,Mn能显著提高烟碱含量。
B , Mg , Mn can increase remarkably the content of nicotine .
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烟末水浸液pH值与烟碱蒸出率的相关性
Relationship Between pH Value of Aqueous Infusion of Tobacco Fine and Distillation Rate of Nicotine
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烟碱石墨涂膜电极及PVC膜电极的研究
Studies on Nicotine Graphite Coated-Membrane and PVC Membrane Selective Electrodes
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钾、维生素C、镁、烟碱酸、和硫胺是这果实的良好来源。
This fruit is a good source of potassium and also contains vitamin C , magnesium , niacin , and thiamine .
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中枢烟碱乙酰胆碱受体与Alzheimer病的研究
Studies on the relationship between CNS nicotinic acetylcholine receptors and Alzheimer 's disease
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泛酸、烟碱酸和腺嘌呤对紫外线照射后大肠杆菌(EscherichiacoliB)恢复作用的初步研究
Preliminary studies on the restoration of ultra-violet irradiated Escherichia coli B by calcium pantothenate , nicotinic acid and adenine
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进行了抽吸间隔时间的长短对卷烟抽吸口数、烟气焦油、烟碱和CO释放量的影响实验。
The variation of puff number and tar , nicotine , and CO deliveries of cigarette smoke with puffing interval was tested .
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与传统的蒸馏萃取法比较,超临界CO2流体萃取提取物中含较多的松油醇、烷烃、烟碱等物质。
As compared with traditional distillation extraction , the extracts of SFE had more terpineol , alkane and nicotine .
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在清醒自由活动状态的大鼠上,肌醇磷酸酶抑制剂氯化锂、M受体激动剂氧化震颤素和N受体激动剂烟碱均可剂量依赖性地降低体温;
In conscious rats , inositol phosphatase inhibitor lithium chloride , muscarinic receptor agonist oxotremorine and nicotinic receptor agonist nicotine produced hypothermia in a dose dependent manner .
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不同浓度IAA对烤烟酶活性及钾和烟碱含量的影响
Effects of IAA on Enzyme Activity , Potassium and Nicotine Content of Flue-cured Tobacco
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dHβE作用于烟碱识别位点而非烟碱受体离子通道。
DH β E take action on the recognition sites of nicotine rather than on non-nicotine receptor ion channel .
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结论:烟碱依赖大鼠脑皮层c-fos的表达增强。
Conclusion : Nicotine dependence can increase the c-fos gene expression of cortex in rats .
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神经型烟碱性胆碱能受体α4亚单位基因多态位点1860(C→T)与吸烟的相关性以流行病学和病例调查为基础的抽样调查
Correlation of polymorphisms in the neuronal nicotinic acetylcholine receptor alpha 4 subunit gene 1860 ( C → T ) with cigarette smoking : Sampling survey based on epidemiology and case investigation
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N:K2O为1:1的处理烟叶烟碱含量较高,其处理在生育后期总氮处于相对较高的水平。
Whereas the treatment with the N : K2O ratio of 1:1 could yield high level of nicotine and total nitrogen .
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目的:观察钙离子在烟碱诱导的大鼠海马脑片CA1区长时程增强中的作用。
AIM : To observe the effects of Ca2 + on hippocampal long-term potentiation ( LTP ) induced by nicotine in CA1 region of rat hippocampal slice .
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烟碱、高温及其联合作用对大鼠肝GST、Cp和脂质过氧化反应的影响
Effects of nicotine and ( or ) hyperthermia on GST , Cp and lipid peroxidation in hepatocyte of rats
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结果表明,该菌降解烟碱的最适条件为接种量5%,温度30℃,初始pH值6.5。
The results showed that the optimum temperature of nicotine degradation by O. intermedium was 30 ℃, the pH value was 6.5 and a mount of inoculum was 5 % .
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采用由高转化系和非转化系杂交的F1植株为材料进行试验,发现烟碱转化百分率随烟碱含量下降的趋势更加明显。
The trend is more obvious when using the F1 hybrid crossing from high converter line and non-converter line .
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烟碱(Nicotine),俗名尼古丁,是一种存在于茄科植物中的生物碱,也是烟草的重要成分。
Nicotine is present in the Solanaceae ( Solanum ) of the alkaloid , is also an important component of tobacco .
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新霉素抑制PC12细胞烟碱受体介导的反应
Neomycin inhibits nicotinic receptor-mediated response in pheochromocytoma ( PC12 ) cells
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拜耳作物科学公司生产新烟碱杀虫剂,公司发言人JackBoyne对这些发现表示异议。
Bayer CropScience makes neonicotinoid pesticides . Company spokesman Jack Boyne disputed the findings .
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其中2.5%楝素.烟碱乳油、16000IU/mgBt可湿性粉剂、10%烟碱乳油又为生物源农药,应大力推广使用。
Toosedarin · nicotine 2.5 % EC , 16000 IU / mg BT WP and nicotine 10 % EC should be spreaded vigorously for biogenic insecticides .
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FT-NIR光谱分析技术测定烟草中总氮、总糖和烟碱
Determination of Total-Nitrogen , Total-Sugar and Nicotine in Tobacco by FT-NIR Spectrometry
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利用15N示踪技术,试验研究了N肥不同用量和留叶数对烤烟烟叶N吸收、分布及烟碱含量的影响。
By using the () ~ ( 15 ) N technique , the effects of nitrogen application and remained leaves on the N uptake and nicotine content of flue-cured tobacco were studied .
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在吸烟机上,研究了不同抽吸条件下,卷烟主流烟气中苯并[a]芘以及TPM、烟碱和CO释放量的差异。
The difference of deliveries of Benzo [ a ] pyrene , TPM , nicotine , and CO in mainstream smoke was studied with alternative puffing regime using smoking machine .