Rototec Spintec - NMR / EPR Supplies Germany - Industrial and Academic Spectroscopy

Our External Reference Coaxial System is perfect to isolate your reference solution from sample.  Each insert fits with precision into the outer tube. The flat bottom forces the reference solution  upwards between the inner and outer tube which forms a thin film of about 50 µl.  You can chose 3, 5 or 10 mm diameter size.