39K NMR measurement of intracellular pot
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Dr. Nina B. Radford; Evelyn E. Babcock; Angela Richman; Lidia Szczepaniak; Craig
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Article
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1998
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John Wiley and Sons
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English
β 803 KB
## Abstract The hyperfine shift reagent, TmDOTP^5β^, was used to resolve the ^39^K NMR resonances of intraβ (K~i~^+^) and extracellular (K~e~^+^) potassium in isolated, perfused guinea pig hearts. [K~i~^+^] as measured by ^39^K NMR was 25.9 Β± 10.3 mM, compared with 114.4 Β± 10.8 mM as measured by at