Calculation of the Background Correction Error in Electrothermic Atomic Absorption Spectrometry

Calculation of the Background Correction Error in Electrothermic Atomic Absorption Spectrometry

A theoretical estimate is presented of the background correction error in electrothermic atomic absorption spectrometry with modulation of the coefficient of atomic absorption in an alternating magnetic field. The experimental results for the background absorption induced by scattering of radiation...

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Veröffentlicht in:Measurement techniques 2003-08, Vol.46 (8), p.773-778
Hauptverfasser: Sadagov, Yu M, Laptev, S A
Format: Artikel
Sprache:eng
Schlagworte:
Analytical chemistry
Atomic absorption analysis
Distortion
Error correction
Graphite
Magnetic fields
Mathematical analysis
Modulation
Scientific imaging
Surface chemistry
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Zusammenfassung:A theoretical estimate is presented of the background correction error in electrothermic atomic absorption spectrometry with modulation of the coefficient of atomic absorption in an alternating magnetic field. The experimental results for the background absorption induced by scattering of radiation are in good agreement with theory. Substantial additional distortions in the output signal due to interaction of molecular vapor with the graphite surface arise in the case of a molecular background.[PUBLICATION ABSTRACT]
ISSN:0543-1972
1573-8906
DOI:10.1023/A:1026165530862