Kore is pleased to present the MS-200: a portable ionizing mass spectrometer powered by a battery for gas analysis - completely in a suitcase.
The MS-200 transfers the advantages of mass spectrometry - good specificity for the identification of unknowns, versatility, accuracy and sensitivity - from the laboratory to the field.The MS-200 inlet membrane concentrator allows identification and measurement of a wide range of gases from low ppb values to percentage levels.
Electronic ionization (EI) is one of the first and most widely used ionization methods in mass spectrometry and has been used for more than 100 years.The ionization of an analyte molecule is based on a beam of electrons (usually) with an energy of 70 eV, removing an electron from the molecule during a collision. EI is described as hard ionization; excess energy in a collision produces a lot of fragmentation ions."Fingerprints" or structures of molecular and fragment ions can be linked to extensive databases such as NIST, and allow for mass spectral deconvolution.EI ionization is most often used for the ionization of VOCs and SVOC.
Specifications
MASS SPECTROMETER
The heart of the MS-200 is a patented convergent ring time-of-flight mass spectrometer.CAT's high sensitivity is the key to creating a portable system.Since a very small amount of gas sample is required, vacuum pumps with low consumption and zero maintenance can be used.The MS-200 uses electron impact ionization, obtaining spectra that correspond to extensive and well-established mass spectral databases.Unlike other mass spectrometers, a very pure CAT ion source eliminates the problems, associated with the accumulation of sample residues and poisoning by filament electron emission, providing an increase in the service life of the filament with constant quantitative characteristics.
VACUUM SYSTEM
There is no need for a separate vacuum base station, since the CAT vacuum system is permanently sealed and completely self-contained in the MS-200 housing. The vacuum is maintained by an ion pump and an unpaired getter pump.The battery can operate the ion pump for about four days.The network adapter is used if the device is left for many days.If the battery runs low, the getter pump maintains a vacuum until power is applied again.
INTAKE SYSTEM
The test gases are sucked by the pump through the heated intake system and enter the CAT source through the diaphragm assembly.The membrane assembly provides a long service life, low content, durable, concentrating sample intake, which allows you to reach the limits of sample detection per billion compounds for many compounds.The typical analysis time is less than one minute even at the highest sensitivity, and the membrane inlet gives good quantitative accuracy.
DATA SYSTEM
The data is displayed on a laptop using the Windows®-based GRAMS/AI™ software from Thermo Scientific.This standard software has been configured by Kore to make a collection of spectra by simply pressing a virtual button.Kore provides a spectrum library with library search facilities and data analysis software for automatic mixture analysis, which presents the identified concentrations of gas sample components in tabular form.
Specifications
Concentration range of PPB levels up to 100% (% using minor isotopes)Maximum sensitivity Limit of benzene detection <5ppb after 10 seconds (membrane input)Mass resolution> 200 m/dm (FWHM)Mass range 1-1000 m /s Electronic shock ion source 70 eV;compatible with the NIST database dimensions 531 x 328 x 213 MMWEX23KG Built-in ion pump Battery life Analysis: 6 hours (1 spectrum every 5 minutes) Pumping only: 4 days is supplied with a double membrane input with increased sensitivity for LOS detection, the response time after the introduction of a new sample is variable, depending on the penetration rate of the compound. Usually tens of seconds.
MASS SPECTRAL LIBRARY
When the MS-200 should be frequently used to characterize samples of an unknown gas, we recommend purchasing the mass spectral library option.With this option, the NIST/EPA/NIH Electron Impact Electron Spectral library is installed in the MS-200 system. This library contains mass spectra from more than 100,000 compounds collected by NIST over many years.The data in the NIST library were obtained with electronic shock ionization of 70 eV, the same as in MS-200.
The NIST software package contains many powerful tools, such as tools for interpreting mass spectral characteristics, library search tools, and so on.Spectra from MS-200 can be exported to NIST software for search/identification.In addition, spectra from the NIST library can be entered into the MS-200 software, which allows you to create customizable databases directly in the MS-200 software.
Detection and analysis of volatile and semi-volatile organic pollutants (VOCs) at remediation sites - as a fast and cost-effective verification process prior to facility renovation
Urban air quality research - measuring the spatial distribution of pollutants
Industrial hygiene - including quality analysis of air purification systems
Emergency response testing - rapid unambiguous identification of unknown
persons Investigation of fire and crime scene - identification of accelerators used in arson at the fire site.
