Method of calibrating an automatic chemical analyzer

Details Method of calibrating an automatic chemical analyzer Method of calibrating an automatic chemical analyzer

1995-01-05

1996-08-27

Warden, Jill

Chemistry: analytical and immunological testing

Composition for standardization, calibration, simulation,...

436 52, 436 53, 436164, 422 67, 422 81, 422 82, 73 1R, 2502521, 356408, 356410, 356436, G01N 3100

Patent

active

055500536

ABSTRACT:
A method for calibrating an automatic chemical analyzer whereby an improved baseline value is calculated. The analyzer uses a photodetector to detect the amount of light passing through a flow cell and correlates this value to the amount of analyte present in a sample solution. In the preferred embodiment, silica is the analyte under investigation. A baseline solution of a specified (preferably zero) analyte concentration, or a sample solution of unknown analyte concentration, is introduced into a chemical module after chemical reagents have reacted with themselves to form a color complex. The resulting solution is passed to the photodetector which determines the amount of analyte present. This value corresponds to the analyte contaminants within the reagents and can be subtracted out by further calculations.

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