A temperature-jump design for conventional NMR probes |
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Authors: | Yushmanov Pavel V Furó István |
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Institution: | Department of Chemistry, Division of Physical Chemistry and Industrial NMR Center, Royal Institute of Technology, SE-10044 Stockholm, Sweden. |
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Abstract: | The design and performance of a simple probe insert for temperature-jump experiments in conventional NMR probes is described. The insert uses the output from conventional NMR amplifiers for heating conductive aqueous samples with a rate of 30-80 K/s for 200 W radiofrequency power. The observed dependence of the heating rate on sample conductivity is explained by the dominance of dielectric heating. Factors governing the temperature gradient within the sample are discussed. |
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