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Trace element fractions acid-soluble

As to the analysis of trace elements in paper, cardboard and raw materials for the production of paper, high concentration elements such as Cu, Fe or Ti can easily be determined by FAAS Cd and Pb are frequently analysed by GFAAS. Cadmium in pulp and paper was determined by AAS after pressurised digestion with nitric acid [145]. An interlaboratory comparison of Cd in wrapping paper was reported, mainly based on pressure digestion in FIFE bombs with sub-boiled nitric acid, followed by ETAAS [59]. For wrapping paper used for foodstuffs, next to the total content of toxic heavy metals, the soluble or leachable fraction is of particular interest. [Pg.613]

See other pages where Trace element fractions acid-soluble is mentioned: [Pg.237]    [Pg.287]    [Pg.131]    [Pg.133]    [Pg.286]    [Pg.224]    [Pg.626]    [Pg.306]    [Pg.313]    [Pg.181]    [Pg.222]    [Pg.71]    [Pg.288]    [Pg.468]    [Pg.421]    [Pg.64]    [Pg.48]    [Pg.72]    [Pg.187]    [Pg.581]   
See also in sourсe #XX -- [ Pg.481 ]



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