Application of a ring-cavity graphite furnace for atomic absorption of high purity substances

Кацков, Д. А.; Kruglikova, L. P.; L'vov, V. B.; Polzik, L.K.

doi:10.1007/bf00941461

Cited by 2 publications

(2 citation statements)

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“…This indicates that, in this case, the matrix did not interfere during atomization. Likewise, Katskov et al (13,14), using the two calibration techniques, obtained similar results for a number of trace metals in various solids including rocks, metals, and slags. Aqueous standards were also used by L'vov (12) to analyze for trace metals in boron nitride, graphite, and zirconium oxide.…”

Section: Resultsmentioning

confidence: 72%

Determination of silver in silicate rocks by furnace atomic absorption spectrometry

Eames¹,

Matoušek²

1980

Anal. Chem.

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Section: Resultsmentioning

confidence: 72%

Determination of silver in silicate rocks by furnace atomic absorption spectrometry

Eames¹,

Matoušek²

1980

Anal. Chem.

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“…Normally samples are solid material which is placed between the tubes. During atomization analyte atoms will pass the low density graphite wall of the inner tube thereby entering the observation zone [84,85]. High and medium volatile elements have been determined successfully with these atomizers, their main advantage being large sample capacity resulting in excellent detection limits.…”

Section: Tubes With Graphite Filtersmentioning

confidence: 99%

Recent developments in atomizers for electrothermal atomic absorption spectrometry

Frech

1996

Analytical and Bioanalytical Chemistry

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This review first describes general requirements to be met for suitable base materials used to produce electrothermal atomizers (ETAs). In this connection the physical and chemical properties of adequate types of graphite and metals are discussed. Further, various atomizer designs, their temperature dynamics during atomization and general performance characteristics are critically reviewed. For end-heated Massmann-type atomizers, discussions are focused on recent developments of, e.g., contoured tubes to achieve improved temperature homogeneity over the tube length, second surface atomizers to realize temporally isothermal atomization and tubes with graphite filters to reduce interference effects. The state-of-the-art of platform equipped, side-heated atomizers with integrated contacting bridges are characterized mainly with respect to heating dynamics, as well as susceptibility to interference- and memory effects. In contrast to end-heated ETAs, the tube ends of side-heated ETAs are freely located in the furnace compartment and, as a consequence of this configuration, convective gas flows can easily appear. The magnitude and effect of these flows on analytical performance are discussed and measures are suggested, permitting operation under diffusion controlled conditions. A critical comparison of classical constant temperature atomizers with state-of-the-art platform equipped ETAs is made and from this it is concluded that future ETA developments are likely to involve only minor modifications aiming at, e.g., the reduction of cycling times or the improvement of tube surface properties.

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Application of a ring-cavity graphite furnace for atomic absorption of high purity substances

Cited by 2 publications

References 0 publications

Determination of silver in silicate rocks by furnace atomic absorption spectrometry

Determination of silver in silicate rocks by furnace atomic absorption spectrometry

Recent developments in atomizers for electrothermal atomic absorption spectrometry

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