摘要
研究了用原子吸收方法通过测定与烟碱生成沉淀的Ｃｕ（Ⅱ）量，间接确定烟碱含量的实验条件，测定结果线性范围为０．０４～４ｍｇ，回收率为９８．７％～１０１％，变异系数为１．０％。
An indirect method for determining nicotine in tobacco is studied by discovering the quanti-ty of copper in nicotine-Cu(Ⅱ)preipitates formed and then calculating the nicotine content.A om-parision of the results shows an error less than 0. 02%, An analytical method is found. which mighthave the significance of determing organic compounds with no need of its pure form as the referencestandard. The results show the linearity with 0. 04～4mg,and give a recovery of 98%～101%。 Therelative standard deviation is 1.0%.
出处
《西北大学学报（自然科学版）》
CSCD
1994年第3期215-218,共4页
Journal of Northwest University（Natural Science Edition）
关键词
原子吸收法
烟碱
无标准分析
烟草
atomic absorption spectroscopy nicotine nonstandardanalytical method
