time of flight mass spectrometer

Time of Flight Mass Spectrometer On-line time-of-flight mass analyser (TOFMS) providing rapid and sensitive gas analysis for environmental monitoring and research applications.The SDI-TOF-MS-2000 perform measurements over a wide range from ppt to percent concentrations of most ambient gases of environmental interest.

Ease of operation and ability to produce stable long-term measurements of the constituents of ambient air makes the equipment well suited to air-pollution monitoring.

Gas Inlet SystemThe SDI-TOF-MS instrument is fitted with two selectable ambient air sample inlets:Capillary inlet for rapid (<1 second) high sensitivity analysis of inorganic gases such as CO, CO2, NO, NOx , N2O, Xe, Kr, SO2, O2 and others at less than 1ppm to percent concentrations.

Membrane inlet for very high sensitivity analysis of volatile organic compounds at the ppt and ppb level within one minute. Compounds of interest include benzene, toluene, xylene (BTX), trichloroethylene, tetrachloroethylene, methane, ethene, formaldehyde, styrene and most other toxic organic compounds of environmental interest.

The Mass SpectrometerThe mass resolution and mass accuracy of a TOF-MS can separate common organic and inorganic interferences and more readily identify unknowns. Has a large mass range from 1-2000 amu ensuring that all gases of environmental interest can be detected. Technical specifications Mass range 1-2000 amu

Mass resolution 600 M/dM FWHM at mass 40

Mass accuracyWithin 20 milli mass units of the calculated peak centroidsMeasuring timeFull mass spectrum in 100msec time slotsDynamic range6 decadesLinearity Better than 5%SensitivityMembrane inlet: Benzene in nitrogen: <1ppb in 1minute Capillary inlet: Benzene in nitrogen: 60ppb in 20sDrift ≤ 0.5% in Ar/N2 ratio over 24 hoursInlet systemDual membrane/capillaryPower supply100-230 V, max 750 WInterfaceEthernet 100Mb/secWeight78 kgSize870 x 540 x 380 (depth, width, height) mm