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Go with the flow: In many applications of NMR spectroscopy in chemistry, proper sample preparation is absolutely critical for success, in particular in biochemical and biomedical areas. For the NMR spectroscopy of laser‐polarized 129Xe, an efficient and robust method for continuous flow of the gas to a NMR tube was developed. Applications to H2O, DMSO, phospholipid bicelles, and 2D exchange NMR spectroscopy are demonstrated.

Hyperpolarized 129 Xe finds numerous applications in NMR spectroscopy and magnetic resonance imaging. The production of hyperpolarized 129 Xe by spin-exchange optical pumping is therefore an important experimental issue. We model the three-dimensional transport processes within a so-called batch mode pump cell via numerical finite element method simulations and compare the results with experimental data. In particular, the influence of different experimental parameters, such as temperature, xenon and nitrogen partial pressure, laser power, and radius-to-length ratio of a cylindrical pump cell, is evaluated. The developed numerical method is capable of describing the spin-exchange optical pumping process in a realistic manner.

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The measurement of the 129Xe Nuclear Magnetic Resonance (NMR) chemical shift as a function of density is reported. The apparatus used in this study enabled us to measure the 129Xe NMR chemical shift in the supercritical state up to a pressure of about 70 MPa, i.e., a density of 440 amagat1 at 298 K.