Description
Wilmad-LabGlass's NMR Precision Tubes are manufactured from
borosilicate glass that meets the requirement of Type 1 Class A
glass from ASTM E438. Precision Tube has 3 fold less paramagnetic
contamination comparing to the Economy tube, and can be operated
safely at temperature up to 230 ˚C, and within a temperature step
of 120 ˚C. Precision tube is rated as hydrolytic class 1, which
states that the inner surface is resistant to strong acid and base
at ambient temperature.
Wilmad-LabGlass is adopting a unique precision shrinking and
grinding process to shape the inner surface with maximized filling
factor, and a tight ID and OD
tolerance as small as 0.0065 mm. None of our competitors are
capable to offer even close products. Each of our individual NMR
tubes released into the market has been manufactured in the
state-of-art facility in the United States and passed multiple
NIST traceable gauge control and optical surface defect checks.
This ultra-thin wall Precision tube features a 15% more sample
volume than the standard wall Precision tube, and 25% more sample
volume than the Economy NMR tube. The length of the ultra-thin
wall protion is 2".
| Properties | |
| MHz Rating:
| 350 |
| Length (inch):
| 8 |
| OD (mm):
| 4.9635 ± 0.0065 |
| ID (mm):
| 4.4965 ± 0.0065 |
| Description:
| Step-down Ultra Thin |
| Wall Thickness (mm):
| 0.24 |
| Concentricity (microns):
| 51 |
| Camber (microns):
| 13 |
3 mm Economy
| Material |
ASTM Type 1 Class A Borosilicate Glass
|
| Impact on shimming quality by paramagnetic
impurities1 |
Small (400 ppm Fe2O3) |
| Rapid cooling/heating |
Yes, within 120 ˚C |
| Max. working temperature |
230 ˚C
|
| Sample volume reproducibility2 |
0.5%
|
| Averaged Sample Volume within Rf coil |
158.8 µl/cm |
| Outer Diameter |
4.9635 ± 0.0065 mm
|
| Cut-off wavelength |
320 nm |
| Compatible with Small Volume Insert |
Customizable
|
| Recommended Application |
Experiments that require critical shimming quality
|
Note 1: Impact on shimming quality varies upon magnetic field
strength. Economy tube is recommended for 1D low field
experiments.
Note 2: Sample volume reproducibility refers to the maximum
volume fluctuation when filling different NMR tubes to the same
sample height. This number correlates to the reproducibility of
time domain signal amplitude between different runs.