Substoichiometric masking-I General considerations and quantitative treatment.
Substoichiometric masking is effected by adding a masking agent in an amount less than that equivalent to the substance to be masked. The amount of free interfering substance is thereby to be reduced below the interference threshold, that is, the level at which interference occurs. The approach is advantageous in cases where the available masking agents when added in excess profoundly affect the substance to be determined. Formulae to evaluate the feasibility of Substoichiometric masking are derived and a general discussion of the situation is given.
Flaschka
H
H
School of Chemistry, Georgia Institute of Technology, Atlanta, Ga, 30332, U.S.A.
Garrett
J
J