How can I do Silicon NMR with a glass tube which is predominately made out of Silicon dioxide?
Place your sample into a Teflon NMR tube liner, and place liner into a 3-4″ long glass NMR tube that is open on both ends. Place a rubber o-ring around the top open end portion of the liner to prevent it from slipping through the glass NMR tube. Position the glass NMR tube into a spinner turbine, and place into magnet. The rf coil will only “see” the Teflon liner and sample, since the glass tube portion is too far from the coil to be detected. We recommend the Norell Teflon NMR tube liner # TL-5-7 with a 3 to 4″ long open-ended glass NMR tube (we can make these for you).