1997
DOI: 10.1007/bf02477526
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Release of selenium and tin from the graphite support in the presence of tungsten and palladium modifiers

Abstract: Electrothermal atomic absorption spectrometry is applied to investigate the release of the selenium and tin atoms from pyrocoated graphite support. The Coats and Redfern and Sturgeon approaches are used for estimation of the apparent activation energies of atom release. The addition of tungsten and palladium modifiers leads to enhancement of the activation energies and changes the bind of the vaporizing species for analytes

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Cited by 3 publications
(2 citation statements)
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References 14 publications
(12 reference statements)
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“…and ported for the atomization of Se(219) and Sn(219,220) in the presence of Pd modifiers, supporting the hypothesis of formation of an intermetallic compound or a solid solution. It was suggested (221) that a Ag modifier stabilized Sb by formation of an intermetallic compound, and its entrapment until Ag began to melt.Katskov et al (…”
supporting
confidence: 59%
See 1 more Smart Citation
“…and ported for the atomization of Se(219) and Sn(219,220) in the presence of Pd modifiers, supporting the hypothesis of formation of an intermetallic compound or a solid solution. It was suggested (221) that a Ag modifier stabilized Sb by formation of an intermetallic compound, and its entrapment until Ag began to melt.Katskov et al (…”
supporting
confidence: 59%
“…Electron microscopic measurement with X-ray detection () showed that In forms an intermetallic compound with Pd during thermal pretreatment. Increased activation energies were reported for the atomization of Se () and Sn ( , ) in the presence of Pd modifiers, supporting the hypothesis of formation of an intermetallic compound or a solid solution. It was suggested () that a Ag modifier stabilized Sb by formation of an intermetallic compound, and its entrapment until Ag began to melt.…”
Section: Electrothermal Atomizationmentioning
confidence: 53%