Direct analysis of metals and alloys by atomic absorption spectrometry

Gough, D. S.

doi:10.1021/ac50007a030

Cited by 98 publications

(33 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…69 The idea, to use a high and directed gas flow in a GD source to improve the analytical figures of merit by a gas jet assisted sputtering was applied first by Gough who used the GD as a sputter source for atomic absorption measurements. 70,71 By application of a gas jet the atomic vapour density could be enhanced so that the sensitivity of atomic absorption spectroscopy could be improved by about one order of magnitude. In such a device, several processes are contributing independently.…”

Section: Our Contributionmentioning

confidence: 99%

Analytical plasma ion sources for elemental mass spectrometry: where are we coming from–where are we going to?

Jakubowski

2008

J. Anal. At. Spectrom.

View full text Add to dashboard Cite

The invention of mass spectrometry at the beginning of the 20th century has had a very important impact on science and technology. In the early days of mass spectrometry a combination of electric and magnetic sector fields was used to separate ions according to their mass to charge ratio and as an ion source a reduced pressure plasma has been applied. Nowadays, plasma source mass spectrometers have become the most powerful instrumentation for inorganic analytical chemistry. The history of plasma source mass spectrometry will be discussed in this article highlighting our own contribution and presenting a personal vision of future application where instrumentation with high mass resolving properties will still play the most important role as to get the highest possible elemental coverage.

show abstract

Section: Our Contributionmentioning

confidence: 99%

Analytical plasma ion sources for elemental mass spectrometry: where are we coming from–where are we going to?

Jakubowski

2008

J. Anal. At. Spectrom.

View full text Add to dashboard Cite

show abstract

“…Such a device had already been applied by Gough, who used the GD as a sputter source to produce an atom reservoir for atomic absorption measurements, which was later used in a commercial instrument (Atom Source, Leemann Labs, Fishkill, New York). 34,35 The atomic vapour density could be enhanced by application of a gas jet so that the sensitivity of atomic absorption spectroscopy could be improved by one order of magnitude. In such a device, several processes contribute independently.…”

Section: Micro-plasmasmentioning

confidence: 99%

Trends in glow discharge spectroscopy

Jakubowski

Dorka

Steers

et al. 2007

J. Anal. At. Spectrom.

View full text Add to dashboard Cite

“…The use of a fast flowing discharge gas was first investigated for GD optical analysers. 4 It was found that gas in the form of a jet directed at the sample helped to improve the erosion characteristics of flat plate samples and increased the analyte concentration in the plasma, hence improving the sensitivity of the technique. 5 Kim and Piepmeier 6 adapted a commercially available flowing optical source as an ion source replacement for the inductively coupled plasma (ICP) source of a 'PQII' mass spectrometer.…”

Section: Introductionmentioning

confidence: 99%

Ion formation at the boundary between a fast flow glow discharge ion source and a quadrupole mass spectrometer

Mason

Williams

Mortimer

et al. 2004

J. Anal. At. Spectrom.

View full text Add to dashboard Cite

An ion source is described for use in low power glow discharge mass spectrometry, using fast flowing argon as the discharge gas, and attached to a quadrupole analyser. The flow carries the plasma downstream onto an ion exit sampling cone which can be variably biased relative to the anode, enabling the physical and chemical properties of the plasma to be studied independently of the main ionisation region, the cathode fall. The parts of the plasma studied were characterised by fixed probe potential measurements. Cone bias effects are consistent with a plasma which contains large quantities of high n Rydberg atoms of both the discharge gas and the sputtered cathode. The ionisable atom flux passing through the sampling aperture was measured directly, giving densities inside the plasma of 10 10 -10 11 cm 23 . The densities of lower n Rydbergs are expected to be very much higher. H 2 is shown to quench these states and promote excitation of the cathode atoms to their Rydberg states. Field-ionisation or Auger deexcitation of the Rydberg gas inside the cell gives a high intensity cathode ion beam, which is relatively uncontaminated by the higher ionisation potential species, such as are formed from the discharge gas.

show abstract

Direct analysis of metals and alloys by atomic absorption spectrometry

Cited by 98 publications

References 25 publications

Analytical plasma ion sources for elemental mass spectrometry: where are we coming from–where are we going to?

Analytical plasma ion sources for elemental mass spectrometry: where are we coming from–where are we going to?

Trends in glow discharge spectroscopy

Ion formation at the boundary between a fast flow glow discharge ion source and a quadrupole mass spectrometer

Contact Info

Product

Resources

About