Polymeric buffering composition for fiber-optic physiological probe and method of making the same
First Claim
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1. A method for making methacrylamidopropyltrimethylammonium bicarbonate comprising the step of:
- passing methacrylamidopropyltrimethylammonium chloride over an ion exchange media that includes bicarbonate ions that are exchangeable with chloride ions of the methacrylamidopropyltrimethylammonium chloride.
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Abstract
High molecular weight buffering compositions and polymeric buffering compositions incorporating such compositions are described. The compositions are useful in applications where lower molecular weight buffers are unsatisfactory because of their tendency to leak out of an encapsulating membrane. Methods of making such compositions are described, as well as a particular application in a fiber optic carbon dioxide physiological probe.
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6 Claims
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1. A method for making methacrylamidopropyltrimethylammonium bicarbonate comprising the step of:
passing methacrylamidopropyltrimethylammonium chloride over an ion exchange media that includes bicarbonate ions that are exchangeable with chloride ions of the methacrylamidopropyltrimethylammonium chloride. - View Dependent Claims (2, 3, 4, 5, 6)
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