FTIR-Spectrometer Model No : LI-5500


FTIR spectroscopy is a powerful analytical technique used to identify chemical compounds and study molecular structures based on the absorption of infrared light. The LI-5500 model is specifically designed for environmental research applications, including the analysis of gases such as carbon dioxide, methane, and water vapor in the atmosphere.



FTIR is an analytical instrument used to analyze the infrared spectrum of a sample. Infrared spectroscopy is a technique that measures the interaction of infrared light with molecules in a sample, providing valuable information about the chemical bonds and functional groups present in the material.

Key features of the LI-5500 may include:

  • High sensitivity: The instrument is capable of detecting trace levels of gases with high precision, making it suitable for atmospheric monitoring and research.
  • Wide spectral range: The LI-5500 covers a broad range of infrared wavelengths, allowing for the analysis of various gas molecules present in the atmosphere.
  • Real-time monitoring: It may have the capability to provide real-time data acquisition and analysis, enabling researchers to observe changes in gas concentrations over time.
  • User-friendly interface: The instrument likely comes with software that offers a user-friendly interface for controlling the spectrometer, collecting data, and performing data analysis.
  • Robust construction: Designed for use in environmental field studies, the LI-5500 may feature a rugged construction to withstand harsh outdoor conditions.

Technical Specifications : 

Spectral Range : 7800 to 350 cm-1
Resolution : Better than 0.85cm-1
Wave Number Precision :±0.01cm-1
Scanning Speed : 5-Step Adjustable for different Applications
better than 15,000 :1 (RMS value, at 2100cm-1)
Signal to Noise Ratio : Resolution: 4cm-1detector:DTGS,
1 minute Data Collection
Beam Splitter : Ge Coated KBr
Infrared Source : Air-Cooled, High Efficiency Reflex Sphere Module
Detector : DTGS
Data system – Compatible Computer
Software : FT-IR Software contains all routines needed for basic
Spectrometer Operations, including Library Search,
Quantitation and Spectrum (Imported)
IR Library : 11 IR Libraries included
Dimensions : 54x52x26cm
Weight : 28kg
Choice of 3 Pin Power Cord


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