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US 5,514,563 AGranted
Method of directly monitoring the concentrations of microbiocides in aqueous systems
AssigneeW. R. Grace & Co.-Conn.
InventorsJack C. Tully, Larry M. Kye
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Abstract
A method for directly measuring the concentration of biocides in aqueous systems comprising directly determining an absorbance or emission spectrum of the aqueous system in a wavelength range of from 200 to 2500 nm and applying chemometrics algorithms to the spectrum to determine the concentration of the biocides.
Claims6
A method for measuring biocide concentration in an industrial aqueous system comprising the following steps:
- 1) determining absorbance or emission spectra in a wavelength range of from 200 to 2500 nm of at least ten samples of aqueous solutions containing known concentrations of a biocide,
- 2) correlating the known concentrations of the biocide to the respective absorbance or emission spectra to create a learning set and entering the learning set into a chemometrics algorithm to generate a multiple sample calibration,
- 3) directly determining an absorbance or emission spectrum of the industrial aqueous system containing the biocide in a wavelength range of from 200 to 2500 nm,
- 4) applying the multiple sample calibration to the absorbance or emission spectrum of the biocide in the aqueous system to determine the concentration of the biocide in the system.
1 more element
Dependencies are inferred from the claim text.