Figure 3

Effect of luminol and potassium ferricyanide concentration on CL intensity, for luminol concentration (Au NPs 1.0× 10 ⁻⁵ mol L ⁻¹ and potassium ferricyanide 1.0× 10 ⁻² mol L ⁻¹ ) and for potassium ferricyanide concentration (Au NPs 1.0× 10 ⁻⁵ mol L ⁻¹ , luminol 5.0× 10 ⁻⁴ mol L ⁻¹ ) and 1.0× 10 ⁻³ mol L ⁻¹ naloxone hydrochloride.