Ann. Tabac, 1989, Sect. 2-22, p. 145-59, ISSN.0399-0354
A new colorimetric method for determination of sulfate in tobacco
SEITA, Institut du Tabac, Bergerac, France
A new method for the determination of sulfate in tobacco is presented. It consists of : dry ashing of tobacco, dissolution of ashes in water, precipitation of sulfate as baryum sulfate in acidic solution, complexation of free baryum with methylthymol...