A salicylate-selective electrode based on the complex [bis(2-hydroxyl imino)1-phenyl,2-(2- qunolile)1-ethanona]Aluminium(III) as the membrane carrier was developed. The electrode exhibited a good Nernstian slope of –59.1 ± 0.4 mV / decade (mean value ± standard deviation, n = 5) and a linear range of 1.0 × 10–6– 1.0 × 10–1 mol L–1 for salicylate. The limit of detection was 5.0 × 10–7 mol L–1. The electrode had a fast response time of 15 s and could be used for more than three months. The selectivity coefficients were determined by the fixed interference method (FIM) and could be used in the pH range of 2.0–7.8. It was employed as an indicator electrode for direct the determination of salicylate in pharmaceutical samples
