File Name : figure 1 supplementary material.tif Caption : figure 1, supplementary material - (a): influence of reaction time on the analytical signal of different nilutamide concentrations (▲ – 1 mg l^-1; ■ – 10 mg l^-1; ● – 40 mg l^-1); (b): absorption spectra of nilutamide solution (40 mg l^-1) in function of reaction time. File Name : figure 2 supplementary material.tif Caption : figure 2, supplementary material - (a): influence of sodium hydroxide concentration on the analytical signal of different nilutamide concentrations (■ – 5 mg l^-1; ● – 50 mg l^-1); (b): absorption spectra of nilutamide solution (50 mg l^-1) in the presence of different sodium hydroxide concentrations.