The content of nicotine in different part of leaf and stem of tobacco in Guizhou, Yunnan Henan and Sichuan were determined directly by oscillopolarography and compared in this paper.

• 摘要利用示波极谱法直接测定了贵州、云南、河南和四川四个烟草盛产地所产烟草的烟叶和烟茎中不同部位的尼古丁含量，并对刚定结果进行了比较。