A nuclear magnetic resonance (NMR) sample tube is made of a polymeric
material instead of glass. Such tubes are thinner than glass tubes, thus
increasing the internal volume and sample size. Such tubes are also more
closely matched to the magnetic susceptibility of specific solvents. Such
tubes have greater mechanical stability, thus leading to less tube
breakage during NMR processing. Such tubes also lend themselves to
various concentric tubal arrangements which permit separation and mixing
of samples to minimize subtraction artifacts in interacting systems.
