Fourier Transform Infrared Spectroscopy (FTIR) analyzes infrared absorption or emission of a solid, liquid, or gas test sample -- offering advantages in the ability to capture high-resolution data over a wide spectral range. Among other applications, FTIR is interfaced with advanced microscopy techniques to offer micro-level resolution of materials and biological specimens via non-destructive methods. Important considerations include the quality and robustness of the IR source and the type and quality of the interferometer and detector. Warranties and service options are important purchasing factors when shopping for the right instrument.
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