Apparatus applied to spectroscopy

Details Apparatus applied to spectroscopy Apparatus applied to spectroscopy

1995-04-27

1996-11-26

Hantis, K.

Optics: measuring and testing

For optical fiber or waveguide inspection

356312, 356316, 356326, B01N 2100

Patent

active

055791042

ABSTRACT:
A spectroscopic apparatus applicable to both ICP (inductively coupled plasma) emission spectroscopy and atomic absorption spectrometry is provided. The spectroscopic apparatus includes a sample unit on which a plasma torch for ICP emission spectroscopy and a heating tube for atomic absorption spectrometry are mounted. A control unit shifts the sample unit to place a plasma flame that is on an end of the plasma torch in front of the light inlet of a spectroscopic unit when the apparatus is operating in the ICP emission spectroscopic mode and to place a central axis of the heating tube in front of the light inlet when the apparatus is operating in the atomic absorption spectrometric mode. The control unit also shifts the apparatus to a two stage spectral mode for ICP emission spectroscopy and to a one stage spectral mode for atomic absorption spectrometry.

REFERENCES:
patent: 4406541 (1983-09-01), Tomoff et al.
patent: 4981357 (1991-01-01), Minakawa et al.
patent: 5155547 (1992-10-01), Casper et al.
patent: 5311277 (1994-05-01), Sasaki et al.
patent: 5383019 (1995-01-01), Farrell et al.
patent: 5424832 (1995-06-01), Nakano et al.

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