Ion Molecule Reaction Mass Spectrometer

Real-time on-line mass spectrometer
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.

Technical background
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

Reagent Ions
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.

Ionization of Analytes
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.

Quantitation & Qualification
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).

Built-in Software
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 software
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.

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