Absorpsjonsmålinger

Absorpsjonsmålinger refer to the process of measuring the absorption of light or other electromagnetic radiation by a substance. This technique is widely used in various scientific and industrial applications to determine the concentration of a substance in a solution, the purity of a material, or the presence of specific compounds. The principle behind absorpsjonsmålinger is based on the Beer-Lambert Law, which states that the absorbance of a solution is directly proportional to the concentration of the absorbing species and the path length of the light through the solution.

In practice, absorpsjonsmålinger are typically performed using a spectrophotometer, an instrument that measures the intensity of light at different wavelengths. The sample is placed in a cuvette, and light of a specific wavelength is passed through it. The spectrophotometer measures the intensity of the light before and after it passes through the sample. The ratio of these two intensities, known as the transmittance, is then used to calculate the absorbance.

Absorpsjonsmålinger are commonly used in analytical chemistry for quantitative analysis, where the concentration of a substance in a solution is determined. They are also used in environmental monitoring to measure the concentration of pollutants in air or water. In addition, absorpsjonsmålinger are used in the pharmaceutical industry to ensure the purity of drugs and in the food industry to determine the concentration of nutrients in food products. Overall, absorpsjonsmålinger are a versatile and widely used technique for measuring the absorption of light or other electromagnetic radiation by a substance.