title: 31P and 23Na NMR studies of the structure and lability of the sodium shift reagent, bis(tripolyphosphate)dysprosium(III) ([Dy(P3O10)]7-) ion, and its decomposition in the presence of rat muscle.
abstract: The 31P NMR of aqueous [Dy(P3O10)2]7- demonstrates that it is in slow exchange with P3O5-10 on the NMR time scale. In the presence of tissue, [Dy(P3O10)2]7- decomposes to PO4 with an accompanying slow change of the tissue 23Na NMR of extracellular Na+ ion in several NMR distinguishable extracellular sites.
mesh_terms: D000818:Animals; D004419:Dysprosium / Q000378:metabolism; D007202:Indicators and Reagents; D009682:Magnetic Resonance Spectroscopy; D009132:Muscles / Q000378:metabolism*; D010758:Phosphorus; D011122:Polyphosphates / Q000378:metabolism; D051381:Rats; D012964:Sodium; D013997:Time Factors
chemical_list: D007202:Indicators and Reagents; D011122:Polyphosphates; D004419:Dysprosium; D010758:Phosphorus; C048543:bis(tripolyphosphate)dysprosium(III); D012964:Sodium