High sensitive element analyzing method and apparatus of the sam

Details High sensitive element analyzing method and apparatus of the sam High sensitive element analyzing method and apparatus of the sam

1991-07-01

1993-04-13

Berman, Jack I.

Radiant energy

Ionic separation or analysis

250282, 250288, H01J 4926

Patent

active

052025624

ABSTRACT:
A standard containing the same elements as a sample is prepared. Concentrations of the elements of the standard are known previously. When signal intensities of an element of the standard solution and the sample exceed an upper limit of a pulse counter of an element analyzing apparatus, a transmitting rate of a passage, through which ionized elements of the standard and the sample pass, is controlled to be less than the ordinal transmitting rate of the passage in synchronism to the passing time of the elements. The concentrations of the elements of the sample is calculated based on output signals of the pulse counter concerning the elements of the standard and the sample and known concentration of the standard.

REFERENCES:
patent: 3639741 (1972-02-01), Carrick
patent: 4757198 (1988-07-01), Korte et al.
patent: 4999492 (1991-03-01), Nakagawa

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