Home > Explosives Detection > Technology > Spectrometry > Ion Mobility Spectrometry (IMS)

Ion mobility spectrometry identifies compounds based on the time required for ionized molecules to drift through an electric field. In operation, sample molecules in the gas phase are ionized using either a corona discharge source or a radiation source such as 63Ni or 241Am. The ions then enter a field-free drift region with an electric gradient, where they drift toward a collector. The time required for an ion to reach the collector depends on several factors, including shape, mass, and charge. In theory, unknowns may be identified via comparison of their drift profiles to an on-board library. IMS is widely used in field portable chemical detectors due to its small size, portability, low power requirement, sensitivity, and quick analysis time (less than a few seconds in most cases). Disadvantages of IMS include relatively high cost, high false positive rate (i.e., low target specificity), and limited number of target chemicals. Most of the systems were designed specifically to detect CWAs, but several IMS manufacturers have broadened their product line to include detection capability for TIC/TIMs, narcotics, and explosives.

Manufacturer
Bruker Daltonics, Inc. (3)
Environics USA, Inc. (3)
General Dynamics Armament and Technical Products (1)
Scintrex Trace Corp. (1)
Smiths Detection, Inc. (9)
Transportability
Handheld (11)
Person-Portable (1)
Mounted (4)
Benchtop/Fixed (1)
Unit Cost
$5,000 - $10,000 (2)
$10,000 - $20,000 (7)
$20,000 - $50,000 (7)
N/A (1)
Sample Introduction
Solid (3)
Other (13)
Sensitivity / Detection Limit
ppm (12)
ppb (1)
ng (2)
Other (2)
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µRAID

µRAID

Bruker Daltonics, Inc.

The µRAID is a compact IMS designed as a personal monitor for battlefield and first responder enviro...

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ChemPro100i

ChemPro100i

Environics USA, Inc.

The ChemPro100i is a real-time chemical agent detector module that is designed to detect airborne ch...

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ChemProDM

ChemProDM

Environics USA, Inc.

The ChemProDM is a detector module that uses open loop IMS technology for fixed applications where l...

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ChemProFXi

ChemProFXi

Environics USA, Inc.

The ChemProFXi is a permanently mounted gas and vapor detector that provides continuous protection o...

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EN5000 GC-IMS

EN5000 GC-IMS

Scintrex Trace Corp.

EN5000’s GC/IMS dual detection identifies specific explosives or narcotics traces. Detects military ...

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GID-3

GID-3

Smiths Detection, Inc.

IMS cells within the GID-3 are chemically doped for enhanced performance. Dual Dopant is an enhanced...

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HGVI

HGVI

Smiths Detection, Inc.

The product can identify and quantify TICs and CWAs using data from three on-board sensor technologi...

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Ionscan 500DT

Ionscan 500DT

Smiths Detection, Inc.

The IONSCAN 500DT incorporates two IMS detectors in a single unit. The IONSCAN 500DT is capable of d...

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JUNO

JUNO

General Dynamics Armament and Technical Products

The JUNO™ hand-held chemical agent detector developed by General Dynamics Armament and Technical Pro...

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LCD 3.2E

LCD 3.2E

Smiths Detection, Inc.

Lightweight Chemical Detector LCD 3.2E is designed to act as a local warning alarm for individuals a...

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LCD 3.3

LCD 3.3

Smiths Detection, Inc.

The LCD 3.3 is a lightweight CWA and TIC detector. The LCD 3.3 has a warning device that alarms to g...

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LCD-Nexus

LCD-Nexus

Smiths Detection, Inc.

Based on IMS technology, the LCD-NEXUS is a portable, compact and rugged chemical warfare agent (CWA...

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MMTD Multi-Mode Threat Detector

MMTD Multi-Mode Threat Detector

Smiths Detection, Inc.

The Multi-Mode Threat Detector (MMTD) is a ruggedized, portable hand-held system for detection and i...

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RAID M100

RAID M100

Bruker Daltonics, Inc.

The RAID M100 is able to detect, classify, and quantify chemical agents. Detected substances are dis...

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RAID-XP

RAID-XP

Bruker Daltonics, Inc.

The RAID-XP combines radiological and chemical detection into one system based on the RAID-M technol...

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Sabre 5000

Sabre 5000

Smiths Detection, Inc.

The Sabre 500 is programmed to identify over 40 threat substances in under 20 seconds. It detects ch...

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