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Absorbance monitoring

  • US 20050079627A1
  • Filed: 11/20/2002
  • Published: 04/14/2005
  • Est. Priority Date: 11/20/2001
  • Status: Abandoned Application
First Claim
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1. A method for monitoring the absorbance of a sample, which method includes:

  • directing a first beam of light having a first wavelength along an optical path through a portion of the sample and measuring the absorbance of the first wavelength so as to obtain a reference absorbance;

    directing a second beam of light having a second wavelength substantially along the optical path and measuring the absorbance of the sample so as to obtain a measured sample absorbance; and

    analysing the reference absorbance and the measured sample absorbance to obtain a true sample absorbance.

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