Expressing self-absorption in the analytical function of inductively coupled plasma atomic emission spectrometry

T. Kántor, András Bartha

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The self-absorption of spectral lines was studied with up to date multi-element inductively coupled plasma atomic emission spectrometry (ICP-AES) instrumentation using radial and axial viewing of the plasma, as well, performing line peak height and line peak area measurements. Two resonance atomic and ionic lines of Cd and Mg were studied, the concentration range was extended up to 2000 mg/L. At the varying analyte concentration, constant matrix concentration of 10,000 mg/L Ca was ensured in the pneumatically nebulized solutions. The physical and the phenomenological formulation of the emission analytical function is overviewed and as the continuity of the earlier results the following equation is offered:I=ac.exp(-βc+kc2)where I is net line intensity, c is concentration and a, β and k are constants. The constant k has significance only above 100 mg/L concentration. Comparison was made also with the polynomial fitting of the calibration curve.

Original languageEnglish
Article number4966
Pages (from-to)119-125
Number of pages7
JournalSpectrochimica Acta - Part B Atomic Spectroscopy
Volume113
DOIs
Publication statusPublished - Nov 1 2015

Fingerprint

self absorption
Inductively coupled plasma
Spectrometry
Polynomials
Calibration
Plasmas
spectroscopy
continuity
line spectra
polynomials
formulations
curves

Keywords

  • Analytical curve
  • Cadmium
  • ICP-AES
  • Magnesium
  • Self-absorption

ASJC Scopus subject areas

  • Instrumentation
  • Atomic and Molecular Physics, and Optics
  • Analytical Chemistry
  • Spectroscopy

Cite this

Expressing self-absorption in the analytical function of inductively coupled plasma atomic emission spectrometry. / Kántor, T.; Bartha, András.

In: Spectrochimica Acta - Part B Atomic Spectroscopy, Vol. 113, 4966, 01.11.2015, p. 119-125.

Research output: Contribution to journalArticle

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