Applied mineral exploration methods, hydrothermal fluids, baro-acoustic decrepitation, CO2 rich fluids
Newest Topics:
For the latest news, see the NEWEST TOPICS page.

Google is too dumb to let me put the list of news in this column and falsely claims that all my pages are self-duplicates.


Google's so-called "Artificial Intelligence" is an abuse of the concept of intelligence!

Hydrogen analyses of aqueous fluids by mass spectrometry are wrong

Hydrogen  (H2) is a by-product of the ionization of water in the mass spectrometer ionizer.

Analyses of hydrogen in fluid inclusion fluids should not be done by mass spectrometry. Laser raman analysis should be used instead.

Mass spectrometry is often used to analyse the chemical composition of fluids within fluid inclusions. Many studies have observed hydrogen based on these analyses. However the reported hydrogen contents are often surprisingly high. Some authors have realized that there is a problem and have proposed that the hydrogen has come from the chemical reduction of water during the analyses, although this is thermodynamically improbable. However there is an alternative explanation.  The problem is due to an incomplete understanding of the ionization process in the ionizer of the mass spectrometer and that H2 (mass 2) is a spurious byproduct of the ionization of water. The discussions here explain the issues relating to hydrogen analyses in fluid inclusions using mass spectrometry.

A discussion of analyses reported in the literature and my own analyses which lead to recognition of the ionization problem.
                Hydrogen analyses reported from the Idaho cobalt belt by Gary P Landis and Albert H Hofstra, 2012.
                Hydrogen analyses reported from the Maw zone, Athabasca, Canada by Rabiei et. al. 2017.

Back to the viewpoints index page