论文部分内容阅读
尼古丁是一类有机吡啶衍生物的生物碱,存在于烟草中,毒性极大。在烟草生产过程中,其含量是一项质量控制指标。尼古丁的化学名称为1-甲基-2(2-吡啶基)吡咯烷,结构式如下:尼古丁一般常用薄层色谱法和毛细管气液色谱法进行测定。目前国外标准是采用紫外分光光度法,但必须用蒸气蒸馏法从烟草混合物中进行分离后,才能测定。尼古丁PVC膜选择电极国内尚未报道,国外报道了液膜尼古丁电极及其性能。作者
Nicotine is an alkaloid of a class of organic pyridine derivatives that are found in tobacco and are highly toxic. In tobacco production, its content is a quality control indicator. The chemical name of nicotine is 1-methyl-2 (2-pyridyl) pyrrolidine, the structural formula is as follows: Nicotine is generally commonly used thin-layer chromatography and capillary gas-liquid chromatography. The current foreign standard is the use of UV spectrophotometry, but must be separated by steam distillation from the tobacco mixture in order to determine. Nicotine PVC membrane selective electrode has not been reported in China, foreign reports of liquid membrane nicotine electrode and its performance. Author