Visible Spectrophotometer
The Visible Spectrophotometer is a precision optical instrument based on the Lambert-Beer Law, which performs qualitative identification and quantitative analysis by measuring the absorbance or transmittance of a substance solution at specific wavelengths within the visible light region (typically 380 nm to 780 nm, with some high-end models extending to 320–1100 nm). In the fields of catalyst R&D, petrochemical quality inspection, and environmental monitoring, it serves as the "eyes" for determining metal ion content, active component loading on catalysts, oil product color, and reaction kinetic parameters.