Product Detail

ACE_1100_IMR-MS_PC.jpg Real-time on-line mass spectrometer ACE 1100 Ion-Molecule Reaction Mass Spectrometer(IMR-MS) is an optimized mass spectrometer for qualitative and quantitative analysis of Volatile Organic Compounds(VOCs). GC-MS and LC-MS use chromatography system (GC, HPLC) for separation of analysis compounds and need the interface between mass spectrometer and chromatography system. In contrast with GC-MS & LC-MS, IMR-MS loads sample directly into the mass spectrometer and immediately can get analysis results in real-time. It can be used not only in the laboratory, but also on-site analysis is required, the place where the on-line monitoring is necessary. Specification : 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 Soft Chemical Ionization 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. ※ Chemical Ionization Mechanism · Proton transfer : Proton affinity of sample molecule > Proton affinity of precursor an ion