To maximize SNR, Precision NMR Tubes have minimal paramagnetic impurities that would impact shimming.

• 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)
• Made from borosilicate glass that meets the requirement of Type 1 Class A glass from ASTM E438
• 100% inspection with multiple NIST traceable gauges and optical surface defect checks

Tight ID and OD tolerance as small as 0.0065 mm accommodates Wilmad inserts.

Note: Caps are not recommended for use with samples dissolved in chloroform-d or acetone-d6.