Attenuated Total Reflectance (ATR)

Attenuated Total Reflectance (ATR) is a technique used in spectroscopy to analyze the properties of materials, particularly solids and liquids. It works by shining infrared light onto a sample placed in contact with a crystal. The light reflects off the crystal and interacts with the sample, allowing scientists to measure how the sample absorbs specific wavelengths of light. This interaction provides valuable information about the molecular structure and composition of the material. ATR is widely used in fields like chemistry and pharmaceuticals to quickly and effectively identify substances without needing extensive preparation.