The construction and analytical evaluation of coated-graphite saccharin ion-selective electrodes, based on the ion pair formed between saccharinate anion and basic dye cations incorporated in a poly(vinylchloride)(PVC) matrix, are described. Several basic dyes such as brilliant green, crystal violet, malachite green, methylene blue, Nile blue, rhodamine B, toluidine blue O, Victoria blue B and violet gentian were used in the preparation of the coated electrodes as anion-exchanger. Of those, only electrodes constructed with toluidine blue O, methylene blue, violet gentian and rhodamine B presented good responses. The influences of membrane composition, pH and foreign food additives were investigated. The best electrode found was 5:30:65%m/m (toluidine blue O cation)(saccharinate anion)/dibutylphthalate/PVC, respectively.