Wilmad^® coaxial insert

Precision, all-glass construction virtually eliminates sidebands. Superior to PTFE inserts in variable-temperature experiments. Upper section of insert fits snugly into the outer NMR tube; 2 mm O.D. insert stem is held straight within 0.013 mm. Use inserts with 5 mm O.D. × 7 in. L thin-wall Precision NMR tubes only. Each insert supplied with a closing cap.
Coaxial inserts are applied in external referencing and locking, studying molecular interactions and determining magnetic susceptibility.

Outer tube must be ordered separately based on magnetic field strength.

Wilmad is a registered trademark of SP Industries