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
AB Sciex (1)
Airsense Analytics (2)
Bruker Corporation (2)
Environics Oy (3)
Photonis (1)
Scintrex Trace Corp. (division of Autoclear) (1)
Smiths Detection, Inc. (9)
Thermo Fisher Scientific, Inc. (1)
Transportability
Pocket Size (1)
Handheld (10)
Person-Portable (3)
Mounted (1)
Benchtop/Fixed (5)
Availability
Commercially Available (18)
Commercially Available: 60 to 90 days for delivery (1)
Discontinued (1)
Unit Cost
$5,000 - $10,000 (2)
$10,000 - $20,000 (5)
$20,000 - $50,000 (5)
N/A (8)
Sample Introduction
Solid (3)
Liquid (2)
Vapor/Gas (15)
Sensitivity / Detection Limit
ppm (11)
ppb (2)
ng (4)
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µRAID

µRAID

Bruker Corporation

The µRAID is a compact IMS-based chemical agent detector for personal monitoring.

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ChemPro100i

ChemPro100i

Environics Oy

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

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ChemProDM

ChemProDM

Environics Oy

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

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ChemProFXi

ChemProFXi

Environics Oy

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. (division of Autoclear)

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

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FAIMS Interface

FAIMS Interface

Thermo Fisher Scientific, Inc.

FAIMS reduces chemical noise and matrix interferences.FAIMS offers multiple degrees of separation, s...

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GDA series

GDA series

Airsense Analytics

The Gas Detector Array uses a unique patented combination of different sensors that makes the GDA se...

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GDA-X

GDA-X

Airsense Analytics

The standard GDA commonly used to detect and identify hazardous gaseous compounds has been improved ...

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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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IMS Analyzer

IMS Analyzer

Photonis

The new PHOTONIS Ion Mobility Spectrometer (IMS) Analyzer is a complete integrated assembly for sim...

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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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IONSCAN 600

IONSCAN 600

Smiths Detection, Inc.

The IONSCAN 600 is a portable desktop system used to detect and identify trace amounts of explosives...

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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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