Method of, and apparatus for, absorbance correction in atomic ab

Details Method of, and apparatus for, absorbance correction in atomic ab Method of, and apparatus for, absorbance correction in atomic ab

1991-12-03

1994-05-24

Black, Thomas G.

Boots, shoes, and leggings

356307, 356315, G01J 300

Patent

active

053155289

ABSTRACT:
In order to provide a linear calibration graph when analysing samples by atomic absorption spectroscopy, a maximum absorbance value is determined conventionally for a given analyte. The individual absorbance values of a sample containing an unknown amount of the analyte are processed as a function of the maximum absorbance value in accordance with the function ##EQU1## The thus obtained corrected individual absorbance values are integrated with respect to time to yield a corrected time-integrated absorbance value which is proportional to the amount of analyte present in the sample. This amount is determined using a calibration factor obtained from the analogously corrected time-integrated absorbance value of a calibration sample containing a known amount of the analyte.

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Jackson et al. "Atomic Absorption, Atomic Emission, and Flame Emission", Analytical Chemistry, Jun. 15, 1992, pp. 50R-66R.

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