spectrophotometer

A spectrophotometer is an instrument used to measure how much light a substance absorbs at different wavelengths. It shines light through a sample and detects how much of that light is transmitted (passes through) versus absorbed by the sample. This information helps identify and quantify substances in a solution, making it useful in fields like chemistry, biology, and environmental science. By analyzing the light absorption spectrum, scientists can gain insights into the composition and concentration of materials, aiding in research, quality control, and diagnostics.