Method and apparatus for determining the zero line in atomic abs

Details Method and apparatus for determining the zero line in atomic abs Method and apparatus for determining the zero line in atomic abs

1986-08-27

1988-09-27

McGraw, Vincent P.

Optics: measuring and testing

By dispersed light spectroscopy

With background radiation comparison

356315, G01N 2172

Patent

active

047737557

ABSTRACT:
An apparatus and method for determining the zero line in atomic absorption spectrometers having an atomizer and a burner for atomizing the sample wherein the flow of oxidizing agent supplied to the atomizer is interrupted by means of a switching valve and an additional flow of oxidizing agent is supplied to the burner through a by-pass conduit by-passing the atomizer with the additional flow being equal to the flow of oxidizing agent to the atomizer during operation of the atomizer and the absorption of the measuring light beam defining the zero line.

REFERENCES:
patent: 3141741 (1964-07-01), Hoel et al.
patent: 3620628 (1971-11-01), Yasuda et al.
patent: 3625614 (1971-12-01), Herrmann et al.
patent: 3681577 (1972-08-01), Gasiunas
patent: 4220413 (1980-09-01), Targowski et al.
patent: 4314764 (1982-02-01), Liddell et al.
Fresenious Z, Anal. Chem., vol. 315, 1983, pp. 12-19, 1983.
Optik, vol. 19, copy 8, 1962, pp. 422-433, 1962.

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