Method for quantitatively detecting Al (III) based on resonance Rayleigh scattering

The invention discloses a method for quantitatively detecting Al (III) based on resonance Rayleigh scattering, which comprises the following steps: in a B-R buffer solution with the pH value of 5.50, an aluminum reagent and Al (III) are subjected to coordination to form complex anions, and the complex anions enter surfactant micelles uniformly dispersed in a water phase, so that the dissolved state of a chromogenic complex in the water solution is improved, the chromogenic complex is concentrated in the micelles, and the concentration of the chromogenic complex in the micelles is improved; the number of color developing agents coordinated with metal is promoted to be increased, multi-stage complexes are promoted to be generated, the resonance Rayleigh scattering method has high sensitivity to macromolecular substances, and a resonance Rayleigh scattering signal of a system can be remarkably enhanced. Therefore, on the basis, a novel resonance Rayleigh scattering method for quantitatively analyzing Al (III) by