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Experimental setup schematic employed for p-H2 quantification studies using real-time bench-top 1.4 T NMR spectroscopy. The safety valve allows for 100 PSI overpressure, and the normal hydrogen (n-H2) pressure of the main hydrogen tank was set to 125 PSI. Switching the valve to the “OFF” position directs hydrogen gas to an NMR tube via a 0.065 in. OD Teflon catheter.
