X-ray absorption edge fine structure of potassium ions in various environments: application to frog blood cells
Science (New York, N.Y.)
|April 13, 1979
Abstract:
The edge spectrum is a sensitive probe of local chemistry. Edge spectra of potassium in various chemical environments were measured, and each environment gives a unique edge spectrum. Hydrated potassium has a unique spectrum that is insensitive to counterions. Comparison of the spectra shows that the chemical state of potassium in cells differs appreciably from that in aqueous solutions.
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