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烟碱

na.【化】nicotine
网络nicotinamide; N; Niacin

烟碱

英-汉网络释义

烟碱

nicotine

烟碱(NICOTINE)是烟草的活性成分之一，是一种用途十分广泛的物质，其化学名称为1-甲基-2-（2-吡啶基）吡咯烷，根据N-甲 …

nicotinamide

化工原料翻译资料下载 ... 乳果糖 LACTULOSE 烟碱 Nicotinamide 硫磺酸 sulfuric acid ...

nicotine,N

由于M受体阻滞剂阿托品、烟碱(nicotine,N)受体阻滞剂美加明(mecamylamine)、M和N受体复合阻滞剂三碘季铵酚(gallamine)等…

Niacin

维他命B3---即烟碱 (Niacin)，是一种水溶性维生素。能帮助皮肤促进新陈代谢、排除毒素、减少褐班。

nicotinic

...体主要分布于副交感节后纤维所支配的效应器；另一类是烟碱(nicotinic)ACh受体(nAChR)，自主神经节细胞的突触后膜及运 …

L-Nicotine

CAS 登录号52-66-4 至 57-08-9 - CAS数据库 ... 氯喹 chloroquine 烟碱 L-Nicotine 水杨酸钠 Sodium salicylate ...

Nicotinic acid

Sigma试剂/标准品试剂标准品 sigma Aldrich ... 维生素H D-Biotin 烟碱 Nicotinic acid 维生素E DL-a-Tocopherol ...

例句：

The amount of nicotine in these nicotine substitutes can be enough to excite the heart .

这些尼古丁替代品中的烟碱含量足以刺激心脏。

Flue-curing takes about a week and fixes the natural sugar of the leaf, which has a high sugar and a medium-to-high nicotine content .

熏烟需要约一个星期并且保证烟叶中的自然糖分，这种烟含糖量高，并含中高量的烟碱。

Using MRI scans , we have shown a reduction in the size of artery walls in patients after a year of treatment with nicotinic acid .

在经过烟碱酸类药物治疗 1 年后，通过 MRI 检查发现，患者的动脉壁的厚度下降。

But he never mentions neonincotinioned, widely known to cause nervous system disorders , as a cause .

但他却从来没有提到烟碱这一物质，而很多人认为这一物质是导致神经系统混乱的原因。

The purpose was to confirm the best technology conditions of nicotine extracted from discarded tobacco leaf .

为了确定从低次烟叶中提取烟碱的最佳工艺条件。

The relative error of the spectral prediction models of the nicotine contents by the step regression method are commonly less than 10%.

对于烟碱，用逐步回归法所建模型的预测相对误差一般在 10%以内。

Spinosad depolarizes insect neurons by activating nicotinic receptors , causing widespread hyperactivity in the nervous system .

其作用机制是通过激活烟碱型受体使昆虫神经细胞去极化，引起中央神经系统广泛的超活化。

The invention relates to a composition of novel nicotinamide insecticide nitenpyram .

本发明涉及新型烟碱类杀虫剂烯啶虫胺的组合物。

Any RN, the content of nicotin , N, K, Cl and amylum satisfied the demand of high quality tobacco, reducing sugar was on the other way round .

在任 R_N 下，烟碱、总氮、钾、氯、淀粉的含量均符合优质烟叶要求，而还原糖相反。

Simple and accurate method for water phase extraction and liquid chromatographic determination of alkaloids in tobacco was established .

本文系统地研究了烟草中烟碱的水相萃取，建立了测定烟碱的萃取 -色谱法。

The true alkaloid nicotine in Nicotiana functions as an allomone against many insect species .

烟草属中的真生物碱，烟碱作为利已激素，能防治许多昆虫。

When a person stops smoking , the nicotine levels in the body drop suddenly .

当一个人停止吸烟时，身体里的烟碱量会突然下降。

The nicotine was purified with solvent extraction . Hexane was chosen as the extraction solvent.

溶剂萃取法纯化烟碱，选择正己烷作为萃取溶剂；

Nicotinic acetylcholine receptors exist in abundance in human skin , but it is unknown whether they exert an anti-inflammatory effect .

烟碱型乙酰胆碱受体存在丰富的人类皮肤，但未知他们是否施加抗炎作用。

Nicotine recovery was independent of nicotine concentration in the external medium , showing good stability .

回收率与媒介中烟碱的浓度无关，稳定性良好。

The fructose content increased remarkably in root system, whose increase tendency is same as nicotine content in root system .

根系中果糖含量增加比较显著，且与根系中烟碱含量的增加趋势相同。

Results indicated that content of Nicotine and hormone were different in differently treated tobacco.

结果表明：不同植物激素处理的烟株体内烟碱含量和激素含量变化不同。

The French battle over pesticides began in the early '90s, when farmers used a new brand of pesticides called neonicotinoids.

法国的这场杀虫剂大战起于上世纪 90年代初，当时农户使用一种叫做 “新烟碱类杀虫剂 ”的新型杀虫剂。

This indicated that plant hormone acted as carrier of signal in the course of signal transfer of biosynthesis of Nicotine .

这说明内源激素在烟碱合成的信号传递中起着信号载体的作用。

He got nicotine stains in his eyes .

他眼中有烟碱的污迹。

Agropharmaceutical products . Chemical analysis of nicotine and nicotine sulphate .

农药产品 .烟碱和硫酸烟碱的化学分析

Thiamethoxam is a highly active insecticide similar to new nicotine compound . Its synthetical methods were introduced.

噻虫嗪是一种具有优异活性的类似于新烟碱类化合物的杀虫剂。

烟碱

烟碱