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The analytical utility of electrodes modified with functionalized polymer films for the determination of aromatic amines is demonstrated. The analysis is based on the preconcentration of the protonated amines into a functionalized polymer film that contains styrene sulfonate groups. Good sensitivity and high reproducibility were obtained for concentrations down to 10−5 M. Aliphatic amines do not interfere in the determination.
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Guadalupe et al. (1986) studied this question.
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