Fourier transform and polychromator studies of the inductively coupled plasma
Analytical and spectrophysical properties of the inductively coupled argon plasma (ICP) excitation source for analytical atomic spectroscopy have been investigated using both a wavelength dispersive dual-grating polychromator spectrometer and a high resolution Fourier Transform spectrometer. Polychromator studies included documentation of intra-alkali matrix effects and a comparison of top-down and side-on optical design for viewing of the ICP. Fourier Transform studies included the determination of a vertical profile of excitation temperatures in the plasma by the spectroscopic slope method as well as determination of excitation temperatures for several other elements in the normal analytical zone of the plasma, the measurement of line widths of several hundred spectral lines, an assessment of the analytical applicability and advantages of the ICP-FTS, the identification of 500 iron lines and an extension of the ICP into the near infrared spectral region to 1.7..mu..m. Preliminary results are given of an optical design using a fiber optic cable.
- Research Organization:
- Los Alamos National Lab., NM (USA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 5510997
- Report Number(s):
- LA-9888-T; ON: DE84003975
- Country of Publication:
- United States
- Language:
- English
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