改进的离子色谱法用于卷烟主流烟气中氨的测定  

Determination of ammonia in mainstream cigarette smoke by an improved method of ion chromatography

作　　者：马雁军[1] 易小丽[1] 李娜[1] 周骏[1] 

机构地区：[1]上海烟草集团有限责任公司技术中心北京工作站,北京通州区万盛南街99号101121

出　　处：《中国烟草学报》2012年第4期1-9,共9页Acta Tabacaria Sinica

基　　金：上海烟草集团北京卷烟厂2008年科技项目"卷烟烟气中氨含量的测定方法研究"(No.200801005)

摘　　要：为准确测定烟气中的氨,解决使用CS12A分析柱时干扰物的共流出问题,采用CS16分析柱建立了卷烟主流烟气中氨含量的离子色谱测定方法。结果显示:在优化条件下,甲胺和乙胺的存在不干扰铵离子的准确定量;该方法有较好的重复性、较高的灵敏度和准确度(98.97%-100.39%),RSD<5%,检出限低于0.1μg/cig,回收率为95.23%-96.72%。Accurate determination of ammonia in mainstream cigarette smoke is of key importance in the evaluation of potential reduced -risk tobacco products. Dionex IonPac CS16 column instead of Dionex IonPac CS12A was used to separate ammonium ions from other ions. Mcthylamine and ethylamine ions wouldnt interfere with the accurate determination of ammonium ions. Limit of detection for ammonia was less than 0. 1μg/eig. The method achieved excellent reproducibility with inter -assay relative standard deviation of 4.41%, whilst the intra -assay deviation was 3.58%. The recovery and the accuracy were in the range of 95.23% to 96.72% and 98.97% to 100.39%, respectively.

关 键 词：离子色谱法 主流烟气 氨 甲胺 乙胺 

分 类 号：TS47[农业科学—烟草工业] O657.75[理学—分析化学]