Method for emission spectrochemical analysis

Details Method for emission spectrochemical analysis Method for emission spectrochemical analysis

1980-06-26

1982-04-27

McGraw, Vincent P.

Optics: measuring and testing

By dispersed light spectroscopy

With sample excitation

G01N 2166

Patent

active

043268013

ABSTRACT:
A method of emission spectrochemical analysis is provided which comprises the steps of producing a predetermined number of spark discharges between an electrode and a specimen containing an element in a first and second state. The intensity of emission of light caused by each of the spark discharges is measured and a frequency distribution of the measured intensities of emission is obtained. The distribution is separated into an area of normal distribution and an area outside the area of normal distribution, and an intensity of emission value is selected. The amount of the element in the first state is determined as a function of the selected intensity of emission multiplied by the area of normal distribution and the amount of the element in the second state is determined as a function of the selected intensity of emission multiplied by the area outside the area of normal distribution.

REFERENCES:
patent: 3876306 (1975-04-01), Onodera et al.

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