Photometric Tests

Photometric tests are analytical methods used to measure the intensity of light absorbed or transmitted by a substance. These tests are commonly used in chemistry and biology to determine the concentration of a substance in a solution. The principle is based on the Beer-Lambert law, which relates absorbance to concentration. Photometric tests are often performed using instruments such as spectrophotometers or colorimeters. They are widely applied in clinical diagnostics, environmental analysis, and quality control in manufacturing.