Portable Mass Spectrometer

  • Author: ChemistryViews.org
  • Published: 16 December 2016
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
  • Source / Publisher: Environmental Science & Technology/ACS Publications
  • Associated Societies: American Chemical Society (ACS), USA
thumbnail image: Portable Mass Spectrometer

The concentrations of gases such as CO2, O2, and CH4 in the atmosphere can provide information about chemical and biological processes in the vicinity. Existing monitoring systems are often limited to specific gases or cannot be used for real-time analysis.


Matthias S. Brennwald, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland, and colleagues have developed a portable mass spectrometer which can be mounted in a suitcase and is capable of autonomous, real-time, on-site analysis of the partial pressures of He, Ne, Ar, Kr, N2, O2, CO2, and CH4. The system consists of a computer-controlled gas inlet valve, a quadrupole mass spectrometer, and several pumps.


The developed device is small, weighs 13 kg, and has a power consumption of only 50 W. In addition, it has a low gas consumption rate, which prevents interference with the environmental gas equilibria during continuous measurement, and it can achieve time resolutions of less than one minute. According to the researchers, this makes the system suitable for on-site analysis in field applications related to, e.g., soil-gas formation, lake/atmosphere gas exchange, and seafloor gas emanations.


 

Article Views: 1449

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

Bookmark and Share

If you would like to reuse any content, in print or online, from ChemistryViews.org, please contact us first for permission. more


CONNECT:

ChemistryViews.org on Facebook

ChemistryViews.org on Twitter ChemistryViews.org on YouTube ChemistryViews.org on LinkedIn Sign up for our free newsletter


A product of ChemPubSoc Europe (16 European Chemical Societies)and Wiley-VCH