Versaperm Vapour Permeability measurement

Mass Spectrometer Sensors

Mass spectrometerThe mass spectrometry (MS) gas detection technique is an accurate and sensitive technique that can be used for any gas.  It is based on ionizing a gas or vapour to generate charged molecules which are excited in an electromagnetic field to determine their mass to charge ratios and identify each component of the gas.   The MS method is widely use due to its high precision and extreme versatility – though the equipment is comparatively expensive.

There are three main parts to a MS detector:-

  1. An ion source, to ionize the gas - often an electron beam.
  2. A mass analyzer, which applies an electromagnetic field. This separates the ions as different masses follow different paths.
  3. A detector, which measures the abundance of each ion present.


At Versaperm we are not tied to any specific sensor types or manufacturer and so we can always select exactly the right sensor for an application. Versaperm is a world technology leader in the measurement of gas permeability. We offer not only instruments but also comprehensive testing and consultancy services.