Home > Explosives Detection > Technology > Molecular Spectroscopy > Mid-infrared Spectroscopy (MIR)

Mid-infrared spectroscopy (MIR) is a vibrational spectroscopy technique that identifies chemicals based on the interaction of molecules with electromagnetic radiation in the mid-infrared region (400-4000 cm-1). Infrared spectroscopy identifies chemicals based on the absorption of specific wavelengths of mid-infrared light by a molecule. Molecular absorbances of mid-infrared light cause molecular rotations and vibrations and are classified by chemical functional groups. The resulting MIR spectrum produced is characteristic for a given molecule.

Infrared open-path systems send out a beam of infrared light through open air, detecting target gases along the path of the beam. This linear 'sensor' is typically a few meters up to a few hundred meters in length. Point analysis (“benchtop”) systems are used for analyzing condensed phase materials, although many systems are also capable of analyzing gases in gas cells. They are more common than open-path systems, and are found in a variety of sizes and capabilities.

Attenuated total reflection (ATR-MIR) is the most popular sampling technique used in most laboratories today, and allows for the fast analysis of solid and liquid materials. MIR spectra can be searched against large reference spectral databases, making this technique a powerful tool for identification of chemical unknowns.

Manufacturer
Agilent Technologies (5)
American Infrared Solutions (4)
Avir Sensors (1)
Block Engineering (4)
Bruker Corporation (1)
California Analytical Instruments, Inc. (1)
Jasco, Inc. (2)
Smiths Detection, Inc. (4)
Thermo Fisher Scientific, Inc. (5)
Wilks Enterprises (1)
Transportability
Handheld (12)
Person-Portable (12)
Benchtop/Fixed (4)
Availability
Commercially Available (21)
Commercially Available: 60 to 90 days for delivery (1)
Discontinued (5)
Military Only (1)
Unit Cost
$10,000 - $20,000 (2)
$20,000 - $50,000 (11)
$50,000 - $100,000 (7)
> $100,000 (3)
N/A (5)
Sample Introduction
Solid (16)
Liquid (2)
Vapor/Gas (6)
Other (4)
Sensitivity / Detection Limit
% (3)
ppm (4)
ppb (3)
mg (12)
Ci (1)
Other (5)
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4100 ExoScan Series

4100 ExoScan Series

Agilent Technologies

The 4100 ExoScan™ is a portable, hand-held, battery operated FTIR analyzer designed to measure a wid...

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4200 FlexScan Series

4200 FlexScan Series

Agilent Technologies

The 4200 FlexScan is a hand-held FTIR specifically designed for various surface analysis application...

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4300 Handheld FTIR Spectrometer

4300 Handheld FTIR Spectrometer

Agilent Technologies

The 4300 Handheld FTIR with DTGS or MCT detectors offers a variety of sampling interfaces: Diffuse R...

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4500 Series Portable FTIR

4500 Series Portable FTIR

Agilent Technologies

The Agilent 4500 Series Portable FTIR Spectrometers are small sized, mid-infrared (IR) region spectr...

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5500 Series Compact FTIR

5500 Series Compact FTIR

Agilent Technologies

The 5500 series portable mid-IR spectrometers specifically designed for on-site oil and lubricant an...

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600 FTIR

600 FTIR

California Analytical Instruments, Inc.

The California Analytical Instruments 600 FTIR Analyzer provides continuous and stable analysis of v...

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ChemSight

ChemSight

Avir Sensors

The ChemSight™ detector is an infrared (IR), line of sight, sensing system for point of entry, fixed...

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Gemini

Gemini

Thermo Fisher Scientific, Inc.

The Gemini by Thermo Fisher Scientific is a handheld, combination FTIR/Raman spectrometer designed t...

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HazMatID

HazMatID

Smiths Detection, Inc.

The HazMatID is a rugged, compact, self-contained FT-IR spectrometer with an integrated computer wei...

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HazMatID 360

HazMatID 360

Smiths Detection, Inc.

The HazMatID 360 uses Fourier-Transform Infrared Spectroscopy and an extensive on-board spectral lib...

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HazMatID Elite

HazMatID Elite

Smiths Detection, Inc.

HazMatID Elite is a handheld FTIR that performs an analysis in 1 minute or less. Its optical engine ...

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HazMatID Ranger

HazMatID Ranger

Smiths Detection, Inc.

The HazMatID Ranger is a portable FTIR. Analysis is performed by touching a diamond ATR sensor tip d...

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InfraSpec VFA-IR

InfraSpec VFA-IR

Wilks Enterprises

The InfraSpec Variable Filter Array (VFA) IR Spectrometer enables the user to obtain infrared spectr...

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LaserScan

LaserScan

Block Engineering

LaserScan™ detects and measures substances on surfaces from a standoff distance of 6 in to 2 feet or...

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LaserScope

LaserScope

Block Engineering

LaserScope™ utilizes a high brightness Quantum Cascade Laser (QCL) point source. Its high spectral r...

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M200

M200

Block Engineering

Block's M200 spectrometer incorporates on-board data collection and data storage, the M200 can simul...

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