ACE 1100 Ion-Molecule Reaction Mass Spectrometer(IMR-MS) is an optimized
for qualitative and quantitative analysis of Volatile Organic Compounds (VOCs).
It is an Ion Molecular Reaction Mass Spectrometer (SIFT-IMR-MS) developed based on
the Selected Ion Flow Tube (SIFT) technology. Unlike GC-MS and LC-MS systems
connected to chromatography equipment (GC, HPLC) for component separation,
ACE 1100 IMR-MS allows direct sample introduction for immediate real-time analysis results.
It can be transported and utilized for on-site analysis, locating areas that require analysis,
and conducting monitoring in various surveillance-demanding environments.
Analysis process of IMR-MS follows reagent ion(precursor ion) production →
precursor ion selection → Ionization of analytes(precursor ion react with analytes) →
qualification & quantitation procedure
The ionization step of analytes is an essential procedure when you use a mass spectrometer for analysis of sample compounds,
and typical ionization methods in mass spectrometry are Electron Impact Ionization(EI) method and Chemical Ionization(CI) method.
IMR-MS uses a soft chemical ionization method, and it ionizes the sample molecule itself or minimizes the fragmentation of the target molecule.
By this ionization method, you can get a simple and accurate mass spectrum.
These are ion sources for chemical ionization of sample molecules. Microwave plasma produces some ions
such as H₃O+, NO+, O₂+ using normal water(H₂O), and air(N₂, O₂). These reagent ions pass through 1st mass filter
and according to analysis condition, a specific ion or three ions move to the reaction chamber for the next step.
The reagent ion(or ions) moves to the reaction chamber react with a loaded sample molecule in this chamber to produce molecular ions.
In this ionization process, different kinds of reaction mechanisms are applied such as Proton transfer,
Electron transfer, dissociative Electron transfer, Hydride abstraction, Association. By these different ionization mechanisms,
each reagent ion produces specific molecular ions which will help to identify the compound.
Molecular ions are separated and selected according to their mass-to-charge ratio in the second mass filter
and are converted into an amplified electric current in the detector(Electron multiplier).
ACE 1100 touchpad controller setup and manage each part of the system (microwave plasma, reagent ion selection, sample loading port, reaction chamber, molecular ion selection, detector, and vacuum pump). Independent operation with 10.1” touchpad controller provides on-site operation and operation mounted in a vehicle.
ACECube is a program for external PC to process analysis data. It makes the system easy to operate from the method set up to data analysis.
Built-in SW : 10.1” TFT color LCD, Embedded Linux base program support reinforced security / System control and data monitoring
ACECube software : analysis method setup, analysis data processing, Real-time data acquisition, library matching, identification.
Environmental air & water contaminants – Volatile Organic Compounds
Indoor air quality(sick building syndrome) – Formaldehydes
Odor – Sulfur compounds(mercaptans, thioethers)
Automotive interior – Formaldehyde, VOCs
Occupational safety – Residual fumigant
Semiconductor facility – Airborne Molecular Contaminants
POCT – Marker for infectious disease