In the 1990’s proton transfer reaction mass spectrometry (PTR-MS) using H3O+ reagent ions became a widely used analytical instrument with applications in environmental science, medical applications and food technology due to the large amount of volatile organic compounds (VOC), which can be quantitatively ionized. In 1998 the spin-off company Ionicon Analytik GmbH (www.ionicon.com) was founded to provide PTR-MS instruments to a growing user community and to develop the technology further. Today many research institutions and companies use this technology throughout the world.weiterlesen