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OALib Journal期刊
ISSN: 2333-9721
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毛细管电泳-电致化学发光联用技术检测烟草中尼古丁含量
DOI: 10.3724/SP.J.1096.2013.30024, PP. 1274-1278
Keywords: 毛细管电泳,电致化学发光,联吡啶钌,尼古丁,烟草
Abstract:
建立了毛细管电泳-电致化学发光联用技术(CE-ECL)检测烟草浸出液中尼古丁含量的方法。考察了检测电位、检测池中Ru(bpy)32+浓度和缓冲液pH值、CE运行缓冲液浓度和pH值、进样时间和电压,以及CE分离电压等实验条件对尼古丁测定的影响。在优化的条件下,尼古丁检测的线性范围为低浓度段:1~100μg/L(r>0.999)、高浓度段:100~1500μg/L(r>0.996),检出限为0.5μg/L(S/N=3)。将本方法用于3种品牌的烟草浸出液中尼古丁含量的测量,测定值均与烟盒上尼古丁的标注值相吻合,样品的加标回收率为95%~106%。
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