Chemistry: analytical and immunological testing – Including titration or ph determination
Reexamination Certificate
2006-04-17
2010-06-01
Hill, Jr., Robert J (Department: 1797)
Chemistry: analytical and immunological testing
Including titration or ph determination
C436S171000
Reexamination Certificate
active
07727770
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 CO2gas 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.
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Byrne Robert H.
Kaltenbacher Eric
Liu Xuewu
Gerido Dwan A
Hill, Jr. Robert J
Smith & Hopen , P.A.
Toner Thomas E.
University of South Florida
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