In trace element determinations of the organic substances,
sample size usually is in the range of 0.1-10
g. In sugar analysis, however, larger sample sizes
should be used, as the trace element concentrations are
very low relative to the detection limits of FAAS.
Therefore, new procedures must be developed in which
at least 100 g of the sugar can be processed. The
amount of chemicals should be kept at minimum levels
to prevent dilution. On the basis of this conclusion, in
this study dry ashing methods with the ashing aids H2-
SO4, Mg(NO3)2, and a Mg(NO3)2 + MgO mixture were
investigated.