Tobacco Science & Technology, 2012, 1, p. 43-46., ISSN.1002-0861
Determination of K+, Ca2+, and Mg2+ in tobacco with dry ashing-ion chromatography
(1) China National Tobacco Quality Supervision & Test Center, Zhengzhou 450001, P.R. China; (2) Technology Center, China Tobacco Chuanyu Industrial Co., Ltd., Chengdu 610066, P.R. China; 3. Technology Center, Shenzhen Cigarette Factory, Shenzhen 518109, Guangdong, P.R. China
A method for simultaneously determining the contents of potassium, calcium and magnesium in tobacco with dry ashing-ion chromatography was developed. The results showed that: the relative standard deviations of potassium, calcium and magnesium were lower than 5%; the recoveries ranged from 98.0% to 105.0%, 98.6% to 102.3%, and 97.0% to 104.9%; and the detection limits were 0.06, 0.03, 0.05 µg/mL, respectively.