Description
Qualitative and quantitative analysis of substances using selective absorption of light at different wavelengths. If the tested solution is completely transparent, the intensity of the directional transmitted light can be detected when a beam of directional incident light passes through the solution; If there is varying degrees of turbidity in the solution, when directed incidence passes through the solution, light diffusion will inevitably occur, resulting in a decrease in the intensity of the directed transmitted light. Therefore, as long as the intensity of the directed transmitted light is accurately measured, the transparency of the solution can be quantitatively reflected.