The PMA 50 PM-IRRAS unit serves as a perfect instrument for accurately identifying, detecting and studying super-thin layers. A prevailing trend in research and development leverages the PM-IRRAS method for real-time examination of ultra-thin layer development in both vacuum environments and liquids. In addition, the PMA50 module has the versatility to execute different polarization modulation tests, like VCD (Vibrational Circular Dichroism), which is instrumental in analyzing chiral molecules.