摘要
建立了一种用稀氢氧化钠溶液吸收,离子色谱法测定卷烟主流烟气中HCN的方法,并用外标法进行定量,该方法快速、简便,不需要复杂的样品前处理,完成一次测定只需10min。在2.50×10-2～5.00mg/L浓度范围内,该方法具有良好的线性(相关系数为0.9999),检测限(S/N=3)为5.3×10-4mg/L,RSD为2.49%,加标回收率为98.5%～101.2%。利用所建立的方法考察了戊二醛交联壳聚糖对卷烟主流烟气中的HCN的吸附效果,结果表明交联壳聚糖对HCN有显著吸附,最多可达到45.6%。
A new method was developed for the determination of hydrogen cyanide in mainstream cigarette smoke by ion chromatography with diluted sodium hydroxide as absorbent. No complicated sample pretreatment was required. The whole procedure of determination could be completed in 10 min. Quantitative results were obtained by external standard method. The method had good linearity with correlation coefficient of 0.9999 in the concentration range from 2.50 × 10^-2 to 5.00 mg/L. Limit of detection based on signal-to-noise ratio of 3 was 5.3 × 10^-4 mg/L. Recovery of hydrogen cyanide in mainstream cigarette smoke ranged from 98.5 % to 101.2% with RSD of 2.49%. Influence of cross-linked chitosan on hydrogen cyanide in mainstream cigarette smoke was investigated. Results indicated that the content of hydrogen cyanide in mainstream cigarette smoke was significantly reduced, up to 45.6 % at the peak .
出处
《中国烟草学报》
EI
CAS
CSCD
2007年第5期23-26,共4页
Acta Tabacaria Sinica
基金
国家烟草专卖局资助项目(110200302018)
关键词
离子色谱
氢氰酸
烟气
卷烟
ion chromatography
hydrogen cyanide
cigarette smoke
cigarette
