Wilmad 328-PP-8 Precision 3 mm NMR Sample Tube, 500 MHz, 8 L (Pack of 5)"

To maximize snr, precision nmr tubes have minimal paramagnetic impurities that would impact shimming. Tight ID and OD tolerance as small as 0.0065mm accommodates wilmad inserts.

• Manufactured in a state-of-the-art iso 9001:2008 usa facility using a unique precision shrinking and grinding process to shape the inner surface with maximized filling factor
• Inner surface is resistant to strong acid and base at ambient temperature
• Can be operated safely at temperatures up to 230°c, and within a temperature step of 120°c
• Rated as hydrolytic class 1
• Ideal for experiments requiring critical shimming quality (high/ultrahigh field, non-spinning, multi-dimensional, multi-nuclei, dnp experiments and studies involving biological samples)