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External double reference method to study concentration and temperature dependences of chemical shifts determined on a unified scale
2004
Pure and Applied Chemistry
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We present the principle of an external reference method of NMR, named the external double reference method, to study concentration and temperature dependences of chemical shifts. By the method, we refer chemical shifts of various samples at different temperatures to the peak of a reference substance at a fixed referring temperature. Thus, we can determine the chemical shifts in a variety of sample conditions on a unified scale. Results of the application of the method to
doi:10.1351/pac200476010105
fatcat:do7xmaciwbctlfq44jvqfwt6r4