Fig. 9. Sensitivity of the fluorescent sensing system for acetamiprid detection. The fluorescence emission spectrum of the system in the presence of 0.1, 0.5, 1.0, 1.5, 2, 2.5, 3.0, 4.0, 5.0 μg mL⁻¹ acetamiprid. Inset: the linear regression method was used to draw the experimental curve. The linear range of the sensing system for acetamiprid was 0.1–3 μg mL⁻¹. All measurements were performed at 25 °C with excitation at 510 nm.