Home > Chemical 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 (8)
Applied Nanotech, Inc. (1)
Bruker Corporation (2)
Environics Oy (7)
General Dynamics Armament and Technical Products (1)
Photonis (1)
RAE Systems, Inc. (1)
Scintrex Trace Corp. (division of Autoclear) (1)
Smiths Detection, Inc. (19)
Thermo Fisher Scientific, Inc. (1)
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Transportability
Pocket Size (3)
Handheld (21)
Person-Portable (11)
Mounted (2)
Benchtop/Fixed (6)
Availability
Commercially Available (26)
Commercially Available: 60 to 90 days for delivery (1)
Discontinued (15)
Military Only (1)
Unit Cost
$5,000 - $10,000 (4)
$10,000 - $20,000 (12)
$20,000 - $50,000 (11)
$50,000 - $100,000 (1)
N/A (15)
Sample Introduction
Solid (6)
Liquid (3)
Vapor/Gas (34)
Sensitivity / Detection Limit
% (1)
ppm (24)
ppb (7)
ng (4)
Ci (1)
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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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ACADA—Automatic Chemical Agent Detection and Alarm System

ACADA—Automatic Chemical Agent Detection and Alarm System

Smiths Detection, Inc.

A man-portable point detection system used to detect all classic nerve and blister agents as well as...

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AeroTracer

AeroTracer

Airsense Analytics

The Aerotracer detects engine turbo oils, de-icing fluids, hydraulic fluids, corrosion inhibitors, g...

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APD2000

APD2000

Smiths Detection, Inc.

The APD2000 is a portable, handheld chemical detection instrument packaged into an ergonomic design ...

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CAM-2

CAM-2

Smiths Detection, Inc.

The CAM-2 is a hand-held ion mobility spectrometer designed for detection of chemical warfare agent ...

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ChemPro 100

ChemPro 100

Environics Oy

The ChemPro®100 is a handheld chemical detector developed for detecting CWA and TIC vapors, and gase...

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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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ChemRAE

ChemRAE

RAE Systems, Inc.

The ChemRAE is a multigas sensor based on Ion Mobility Spectrometry (IMS) technology. It is designed...

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DynaSensor

DynaSensor

General Dynamics Armament and Technical Products

IMS CWA detector developed for the military and now available for Homeland Security operations.

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ECAM

ECAM

Smiths Detection, Inc.

ECAM Enhanced Chemical Agent Monitor is a handheld instrument designed to detect, search for and loc...

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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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EnVision CBRN

EnVision CBRN

Environics Oy

The ENVISION CBRN is a complete stand-alone CBRN detection product that can detect Chemicals and Bio...

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EnVision HRS

EnVision HRS

Environics Oy

EnVision HRS is an CRN monitoring and warning system enabling CRN detection at a certain event or ar...

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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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