Document Type

Patent

Publication Date

June 2010

Patent Number

7727770

Abstract

A system and method for spectrophotometrically measuring the total alkalinity of a liquid sample. In a particular aspect, the method involves equilibration of a CO2 gas with a sample solution across the permeable walls of a Teflon AF 2400 liquid core waveguide. The waveguide acts as both an equilibration membrane and an optical cell in which spectrophotometric pH measurements are obtained via measurements of absorbance ratios.

Application Number

11/279,971

Assignees

University of South Florida

Filing Date

04/17/2006

Primary/U.S. Class

436/163

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