摘要
用0.05mol盐酸提取烟末中烟碱,以溴百里酚蓝为显色剂,用分光光度法测定烟碱含量。实验表明,该法的精密度和回收率均符合要求,测试结果令人满意。
Nicotine is extracted by 0.05 mol/l hydrochloric acid and determined by spectrophotometry at the presence of indicator bromthymol blue.Accuracy and recovery rate are satisfactory.
出处
《广西化工》
CAS
1997年第4期56-58,共3页
Guangxi Chemical Industry
关键词
烟碱
分光光度法
烟草
萃取
nicotine, brothymol blue, spectrophotometry, tobacco