How does a UV-Vis Spectrophotometer work? UV-Vis spectrophotometry is a powerful analytical technique used in various scientific fields to measure light absorbance across the electromagnetic spectrum’s ultraviolet (UV) and visible (Vis) ranges. By measuring the intensity of light passing through a sample solution and comparing it to the intensity of the incident light, a UV-Vis spectrophotometer provides valuable information about the properties of materials and their interactions with light. Wh