UV-Vis spectroscopy measures how a substance absorbs ultraviolet or visible light. When light passes through a sample, certain wavelengths are absorbed based on the sample's structure, while others pass through. By analyzing this absorption, scientists can identify the substance and determine its concentration. It’s widely used in chemical analysis, water quality testing, and pharmaceutical development
Infrared spectroscopy detects how molecules absorb infrared light and start vibrating. Each type of bond in a molecule absorbs specific wavelengths, creating a unique "fingerprint." By analyzing these vibrations, scientists can identify the types of bonds and functional groups in a sample. IR is commonly used to study organic compounds and verify materials in chemistry and industry.
Raman spectroscopy measures the scattering of light when it interacts with molecules. A laser is shone on a sample, and some of the light changes energy, providing information about the vibrations of the molecules. This reveals the molecular structure and composition. Raman is often used for studying biological samples, materials, and even artwork.
NMR spectroscopy detects how atomic nuclei in a molecule respond to a magnetic field. By analyzing the energy they absorb and release, NMR provides detailed information about a molecule's structure, including the arrangement of atoms. It’s a powerful tool in organic chemistry and biochemistry for identifying and characterizing compounds