| Abstract:The determination of the inorganic cations content is significant for controlling the quality stability of reconstituted tobacco. The determination of the cations of sodium, ammonia, potassium, magnesium and calcium in reconstituted tobacco and its tobacco raw materials was achieved by using ion chromatography and polytetrafluoroethylene (PTFE) container. The results indicated that: (1) good linear relationship between the cationic on centrations and relevant peaks was found and with r2≥0.9991, the recoveries of the ions were from 96.18% to 106.01% with RSD of ≤3%, (2) the measurement error of sodium content could be reduced by using PTFE container and the repeatability is better. |