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There are no good potassium indicators that I am aware of, however. PBFI
simply does not work because it has very little change in intensity or
spectrum shift with binding to potassium. The only alternative is to measure
membrane potential with oxonol dyes, for example, and infer potassium changes
from that.
I hope this helps.
Mike Fox
Colorado State University
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CD-ROM Vol 3 was produced by Monica M. Shively and other staff at the
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If you have any comments please direct them to
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Phone: (765)-494-0757;
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