Application of Starch-Stabilized Silver Nanoparticles as a Colorimetric Sensor for Mercury(II) in 0.005 mol/L Nitric Acid

Figure 4

Plot of A_t/ as a function of the Hg²⁺ concentration over the ranges of (a) 0–12.5 μg L⁻¹ and (b) 25–500 μg L⁻¹ in the presence of 0.005 mol L⁻¹ HNO₃.

(a)

(b)