Tobacco Science & Technology, 2006, 2, p. 33-6, ISSN.1002-0861
Determination of nicotine in aqueous tobacco extract by complex-extracting-spectrophotometry
Changsha University of Science and Technology, Changsha, Hunan, China.
A method of complex-extracting-spectrophotometric determination of nicotine in an aqueous tobacco extract was developed by virtue of the principle that the light absorptivity of a complex of nicotine and methyl-orange is in proportion to its nicotine...