Pulsed Fourier transform NMR spectroscopy was used to obtain 129Xe chemical shifts in gases with densities of xenon much lower than ever before observed. At densities of 3–28 amagat, the contamination of the desired linear term in chemical shielding by contributions due to three-body or higher order interactions is completely eliminated. This allows the determination of very precise values of σ1(T) for 129Xe in xenon, krypton, and argon gas.
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Jameson et al. (1975) studied this question.
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