Detection of structured interferences in a.c. Zeeman atomic absorption by harmonic analysis

Edgar A. Arriaga, Roger Stephens

Research output: Contribution to journalArticle

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Abstract

Harmonic analysis of the signals produced by Zeeman correction with an alternating magnetic field shows that the amplitudes of the harmonic frequencies vary with the position and half-width of the interfering line. Amplitude ratios can serve as a parameter to detect the occurrence of such interferences over a limited concentration range. Calculations are based on a model using normal Zeeman splitting. Measurements are made for the iron-platinum interference at 217.9 nm and for the interference between the isotopes of lithium at 670.8 nm.

Original languageEnglish (US)
Pages (from-to)867-876
Number of pages10
JournalSpectrochimica Acta Part B: Atomic Spectroscopy
Volume44
Issue number9
DOIs
StatePublished - 1989

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