Chemistry: analytical and immunological testing – Measurement includes temperature change of the material...
Reexamination Certificate
2011-03-15
2011-03-15
Drodge, Joseph W (Department: 1772)
Chemistry: analytical and immunological testing
Measurement includes temperature change of the material...
C204S408000, C324S438000, C324S439000, C422S082020, C422S082120, C436S150000, C700S266000, C700S267000, C702S030000
Reexamination Certificate
active
07906339
ABSTRACT:
A system and method that uses electrical conductivity measurements to identify the impurities in a solution, as well as the concentrations of such impurities. The conductance versus temperature curve for any particular ion is unique to that ion and the conductance versus temperature curve for a solution is unique to the ions in the solution and their concentrations. Equations can be used to describe the conductivity versus temperature curve containing specific ions at set concentrations. To that end, the present invention measures the conductivity of a solution over some specified temperature range, calculates a conductivity-temperature curve from a library of ions to match the measured conductivity, and uses a mathematical process to vary the ions and their concentrations in the calculated curve to make it match the measured curve as closely as possible. If the match is close enough, the ions and their concentrations in the calculated curve will be taken as the ions and their concentrations in the measured solution.
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Drodge Joseph W
Standley Law Group LLP
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