Clean dry air is used routinely in NMR for sample spinning and lifting. However,
recent developments in magnet technology have seen a move towards the use of
clean dry nitrogen for this purpose at field strengths above 600 MHz to avoid
paramagnetic influences of oxygen contained in air.
Whether your gas requirement is nitrogen or air, a Parker domnick hunter has
a laboratory gas generator that will save you time, money and hassle compared to
more conventional modes of gas supply.
