Photometric analysis is a method used in scientific research to measure the intensity of light emitted or absorbed by a sample. This technique involves using specialized instruments, such as photometers or spectrophotometers, to analyze the amount of light absorbed or transmitted by a substance at different wavelengths. Photometric analysis is commonly used in the fields of chemistry, biology, physics, and environmental science to study the properties of materials, identify chemical compounds, or quantify the concentration of specific substances in a sample. This technique can provide valuable information about the composition, structure, and behavior of various materials and is widely used in research laboratories, industry, and academia.