The Fourier Transform Infrared Spectroscopy is an exceptional analytical tool that has changed the ways in which scientists and researchers of various fields understand the molecular world. It is a technique rich with values that could help you solve the logic of actions behind infrared lights absorbed and emitted by molecules.
Whether you are a seasoned researcher or a curious student, rest assured that this article will be your guide. It will equip you with the knowledge necessary to use the FTIR in your work at its maximum capability.
Types of FTIR Spectrometers
1. Benchtop FTIR Spectrometers
The most used and versatile amongst the other instruments, the benchtop offers very high performance and high-resolution analytical capabilities for a wide variety of sample types. Its advanced optical designs and sensitive detection system cover a wide spectral range.
Its sophisticated software with tools for data analysis and reporting makes the benchtop FTIR suitable for research, quality control, and process monitoring applications.
2. Portable/Handheld FTIR Spectrometers
Agilent FTIR spectroscopy instruments are very compact, rugged, and user-friendly which allows you to take it to fieldwork or on-site measurements. These instruments are lightweight and battery-operated, which supports single-hand operation and also enables real-time analysis and monitoring in the field.
3. FTIR Microscopes
These instruments combine the power of an FTIR spectrometer with an infrared microscope for the analysis of microscopic samples and mapping of the chemical compositions at a micrometer scale.
Key Components of FTIR Instruments and their Importance
1. Interferometer
Necessary for the Fourier Transform process that changes the time-domain interferogram to the frequency-domain infrared spectrum.
2. Infrared Source
This component should give sufficient intensity with the proper wavelength range for analysis.
3. Sample Holder
Holds the sample in place and prepares it by various sampling methods. Some holders include transmission cells and diffuse reflectance accessories.
4. Detector
It is necessary that it has appropriate sensitivity and spectral range to measure the infrared radiation after its interaction with the sample.
FTIR Applications
Chemical Analysis
FTIR identifies unknown chemical compounds by matching their spectra with those in a reference library. It also monitors the quality control in manufacturing like changes in the material composition or detection of contaminants.
Environmental Monitoring
Air and water quality analysis is done by the FTIR through the detection and quantification of pollutants and contaminants. FTIR identifies and monitors greenhouse gases, pesticides, and heavy metal levels.
Pharmaceutical Industry
FTIR is responsible for drug development, formulation optimization, and quality assurance. Its role in this industry also includes checking the purity of raw materials used in pharmaceutical manufacturing.
Material Science
The FTIR characterizes polymers and composites to determine chemical composition, structure, and its properties. It also characterizes the properties of thin layer and surface coatings– chemical structure, thickness, and homogeneity.
3 Advantages of FTIR Spectroscopy Instruments
1. Nondestructive Analysis
The best advantage associated with FTIR spectroscopy is its non-destructive nature, the sample remains intact even after analysis. Further testing or use of samples could be performed without risking the sample which is important when the sample is limited.
2. High-speed Data Acquisition
FTIR spectroscopic data could be obtained within seconds or minutes, making the technique sufficient for real-time monitoring and process control applications.
3. Versatility to Various Sample Types
FTIR spectroscopy is able to analyze most samples, whether in solid, liquid, or gaseous forms or even in a solid form in a liquid matrix. This feature makes it an ideal tool with various applications that cut across different industries and their needs.
FTIR Spectroscopy’s Boundless Potential
With the advancement in technology that has hit the FTIR instruments, the future of scientific research is promising. Improved data analysis, complementarity, and ease of use are about to open new realms of discovery.
