Boots – shoes – and leggings
Patent
1995-04-18
1997-06-17
Voeltz, Emanuel T.
Boots, shoes, and leggings
364578, G01N 3116
Patent
active
056403305
ABSTRACT:
The present invention is directed to a method that fits experimental pH titration data to a model titration curve. The model is designed to accommodate any practical number of weak acids or bases (i.e., buffers) with single or multiple pK.sub.a 's in the sample and/or the titrant. It is also possible by means of the present invention to use any choice of titrant, including weak acids or bases, buffered solutions, or either an acid or base titrant for the same sample. A non-linear curve-fitting procedure is used to fit the data to the model. Volume changes, ionic strength effects, and differences between measured pH and the proton concentration function p[H.sup.+ ] are taken into account. Mixtures of compounds with pK.sub.a 's less than 1 unit apart can be determined accurately. The results may be displayed in a deconvoluted form, facilitating the identification of compounds through their pK.sub.a 's.
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Cooper Emanuel Israel
Rath David L.
IBM Corporation
Kemper M.
Voeltz Emanuel T.
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