Billion‐Fold Enhancement in Sensitivity of Nuclear Magnetic Resonance Spectroscopy for Magnesium Ions in Solution |
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| Authors: | Dr Alexander Gottberg Dr Monika Stachura Dr Magdalena Kowalska Dr Mark L Bissell Dr Vaida Arcisauskaite Prof Klaus Blaum Alexander Helmke Dr Karl Johnston Dr Kim Kreim Prof Flemming H Larsen Prof Rainer Neugart Prof Gerda Neyens Ronald F Garcia Ruiz Daniel Szunyogh Prof Peter W Thulstrup Dr Deyan T Yordanov Prof Lars Hemmingsen |
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| Institution: | 1. CERN, 1211 Genève 23 (Switzerland);2. Kemisk Institut, K?benhavns Universitet, Universitetsparken 5, 2000 K?benhavn (Denmark);3. Instituut voor Kern‐ en Stralingsfysica, KU Leuven, Celestijnenlaan 200 D, 3001 Leuven (Belgium);4. Max‐Planck‐Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg (Germany);5. Humedics GmbH, Marie‐Elisabeth‐Lüders‐Str. 1, 10625 Berlin (Germany);6. Universit?t des Saarlandes, Experimentalphysik, 66123 Saarbrucken (Germany);7. Institut for F?devarevidenskab, K?benhavns Universitet, Rolighedsvej 30, 1958 Frederiksberg C (Denmark);8. Institut für Kernchemie, Universit?t Mainz, Fritz‐Stra?mann‐Weg 2, 55128 Mainz (Germany);9. MTA‐SZTE Bioszervetlen Kémiai Kutatócsoport, Dóm tér 7, 6720 Szeged (Hungary) |
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| Abstract: | β‐nuclear magnetic resonance (NMR) spectroscopy is highly sensitive compared to conventional NMR spectroscopy, and may be applied for several elements across the periodic table. β‐NMR has previously been successfully applied in the fields of nuclear and solid‐state physics. In this work, β‐NMR is applied, for the first time, to record an NMR spectrum for a species in solution. 31Mg β‐NMR spectra are measured for as few as 107 magnesium ions in ionic liquid (EMIM‐Ac) within minutes, as a prototypical test case. Resonances are observed at 3882.9 and 3887.2 kHz in an external field of 0.3 T. The key achievement of the current work is to demonstrate that β‐NMR is applicable for the analysis of species in solution, and thus represents a novel spectroscopic technique for use in general chemistry and potentially in biochemistry. |
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| Keywords: | β ‐NMR magnesium NMR spectroscopy radionuclides ultrasensitivity |
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