Adsorption in gas mass spectrometry: Effects on the measurement of isotope amount ratios
The effects of adsorption in the mass spectrometer inlet system on the measured isotope amount ratios are discussed. A model is proposed to correct for these effects. The values of the isotope amount ratios obtained with the help of the model are about 1E-5 lower than the values obtained by linear extrapolation. The model enables to estimate the isotope fractionation factors involved in the effusion, adsorption and desorption processes.
Bibliographic Reference: Article: International Journal of Mass Spectrometry and Ion Processes
Record Number: 199710689 / Last updated on: 1997-06-10
Original language: en
Available languages: en