Atomic absorption spectrophotometer

Details Atomic absorption spectrophotometer Atomic absorption spectrophotometer

1997-11-21

1999-01-19

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

With sample excitation

G01N 2174, G01N 2131

Patent

active

058619488

ABSTRACT:
The invention relates to optical instrment engineering. It is suggested that a linear solid state detector (photodiode array detector, charge coupled device, charge transfer device) that is positioned along the image of entrance slit of the monochrometer be used in an atomic absorption spectrophotometer. This will improve the analytical performance of an atomic absorption spectrophotometer--lower the detection limits, extend the range of concentrations to be measured, increase the reproducibility of measurements by taking into account the temporal and spatial non-uniformities of the analyte distribution over the atomizer volume and will simultaneously provide atomizer walls and of the platform temperatures.

REFERENCES:
patent: 4204770 (1980-05-01), Tomoff
patent: 4890919 (1990-01-01), Tsukada et al.

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