System for introducing a sample substance into a spectroscopical

Details System for introducing a sample substance into a spectroscopical System for introducing a sample substance into a spectroscopical

1990-05-31

1991-12-10

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing liquid or solid sample

422 63, 422 82, 422103, 7386372, 7386373, 7386483, 436161, 2101982, G01N 3000, G01N 2100, G01N 3500

Patent

active

050716247

ABSTRACT:
A system for introducing a sample substance into a spectroscopical analytical instrument which includes a first pump which, when on, pumps a sample liquid and a buffer liquid, and a second pump which, when on, pumps an eluting liquid and rinsing liquid. The system includes an ion exchanger column for retaining the elements of the sample to be determined and which can be eluted by the eluting liquid. A dosing capillary serves to introduce the sample into the furnace of an atomic absorption spectrometer. A valve has a first position wherein the first end of the ion exchanger column communicates with the first pump and the second end communicates with a waste outlet port, and the dosing capillary communicates with a source of displacing fluid; and a second position wherein the second end of the ion exchanger column communicates with the second pump and the first end communicates with the dosing capillary.

REFERENCES:
patent: 3990853 (1976-11-01), Godin
patent: 4302421 (1981-11-01), Baker
patent: 4315754 (1982-02-01), Ruzicka
patent: 4726932 (1988-02-01), Feier et al.
patent: 4837157 (1989-06-01), Turnell et al.
patent: 4843016 (1989-06-01), Fine
patent: 4872992 (1989-10-01), Oquendo et al.
Fang et al., "Fundamental and Practical Considerations in the Design of On-Line Column Preconcentration for Flow-Injection Atomic Spectrometric Systems", Analytica Chimica Acta, 200 (1987) pp. 35-49.
Hartenstein et al., "Sensitivity Enhancement for Flow Injection Analysis-Inductively Coupled Plasma Atomic Emission Spectrometry Using an On-Line Preconcentrating Ion-Exchange Column", 1985, pp. 21-25.

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