An analytical instrument combining Fourier Transform Infrared (FTIR) spectroscopy with Attenuated Total Reflectance (ATR) sampling and microscopic imaging capabilities. It identifies chemical functional groups and molecular structures within microscopic samples, providing detailed chemical maps and spectra without extensive sample preparation., This system, typically from Thermo Fisher Scientific (Nicolet brand), is invaluable for materials science, forensic analysis, pharmaceutical quality control, and biological research, enabling non-destructive chemical characterization of heterogeneous samples.