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The determination of hydrogen cyanide in mainstream cigarette smoke by ion chromatography

CHEN Kai-bo,SUN Jun-ju,GE Shao-lin Technology Center of Wuhu Cigarette Factory,Wuhu 241002,China  
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.
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