NMR Tubes
NMR Tubes
Thin, glass tubes of different lengths, wall thicknesses, outer diameters, cambers, concentricities, and I.D. and O.D. tolerances designed to hold samples during nuclear magnetic resonance spectroscopic analysis; may include tube cap.NMR tubes are required for analyzing samples using nuclear magnetic resonance spectroscopy. Choose an NMR tube that most closely matches the frequency (MHz) of your spectrometer.
Typically made of borosilicate glass and offered in seven- and eight-inch lengths, the outer diameter of the tube can range from 3mm to 10mm, with 5mm being the most common. For greater testing precision, look for thin-walled NMR tubes. Quartz NMR tubes with low boron concentrations of boron are also available if boron NMR is used.
NMR tubes are available in reusable or disposable versions. Some versions have screw caps, with or without septa. Polyethylene caps are the most common.
Specifications for NMR tubes may include concentricity and camber.
- Concentricity is how round the tube is and is measured using the inner and outer walls
- Camber is a measure of the tube’s straightness; poor camber can cause the tube to wobble during rotation, which can produce spinning side bands
Nuclear magnetic resonance spectroscopy allows you to observe the local magnetic fields around atomic nuclei. As radio waves excite the nuclei, their resonance is detected by a sensitive radio receiver that provides information about the molecule’s electronic structure. NMR spectroscopy is also used to identify monomolecular organic compounds, proteins, and other complex molecules.
Wilmad-LabGlass™ Thin Walled High Throughput NMR Tubes
Possess an average camber of 60 microns to guarantee the clarity of the spectrum for small molecule (MW<250) samples up to 600 MHz. Wilmad Thin Walled High Throughput NMR Tubes are designed for routine use in most low to mid field NMR spectrometers.
DWK Life Sciences Kimble™ Kontes™ Cuvette Tube Washer for NMR Utility Washers
Replacement fask for utility washers.
DWK Life Sciences Kimble™ Kontes™ Brand 10mm NMR Sample Tubes
Precision tubes
DWK Life Sciences Kimble™ Kontes™ Brand 5mm Disposable Grade NMR Sample Tubes
For instruments with field strength of approximately 60MHz
DWK Life Sciences DURAN™ NMR Tubes, for four application frequencies, with closures
NMR tubes, the sample or solution vessels for resonance frequency measurement, are extremely precise and are subject to narrow tolerances for straightness, wall thickness and wall thickness distribution.
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Bel-Art™ SP Scienceware™ Wilmad™ 3mm FEP Sample Tube Liner
Provides a contamination-free environment for NMR investigations where corrosive chemical compounds such as hydrofluoric acid, ammonium bifluoride and concentrated hydroxide solutions are present. Bel-Art SP Scienceware™ Wilmad™ 3mm FEP Sample Tube Liners are compatible with Wilmad's 7 in. NMR tubes.
Bel-Art™ SP Scienceware™ Wilmad™ Thin Wall Quartz EPR Sample Tube
Manufactured from naturally occurring quartz with the highest purity to minimize the background signal. Bel-Art SP Scienceware™ Thin Wall Quartz EPR Sample Tube may contain Fe2O3 which is paramagnetic (1200 ppm) and has certain impact on shimming quality depending on the magnetic field strength.
Bel-Art™ SP Scienceware™ 5mm O.D. Thin Walled Precision NMR Tubes
To maximize SNR, Precision NMR Tubes have minimal paramagnetic impurities that would impact shimming. Tight I.D. and O.D. tolerance as small as 0.0065mm accommodates Wilmad inserts
Wilmad-LabGlass™ SP Scienceware™ 5mm O.D. Thin Walled Quartz NMR Tube
Wilmad Precision NMR Quartz Tubes have an extremely low thermal expansion rate and high tensile strength which is 14 times more robust during the cooling/heating process than Type 1 Class A glass tubes
Wilmad-LabGlass™ Benchtop Spectrometer NMR Tubes
Wilmad-LabGlass Benchtop NMR Tubes have been tested to assure performance and permit confidence in purchasing consumables for instruments.
Wilmad-LabGlass™ SP Scienceware™ Quick Pressure Valve (QPV) 5mm OD NMR Sample Tubes
Low pressure/vacuum (LPV) tube ideal for anaerobic and gas-tight NMR experiments, and offers a convenient flame-free sealing solution for air sensitive or volatile liquid samples
Wilmad-LabGlass™ SP Scienceware™ 5mm O.D. Heavy Walled Precision NMR Tubes
To maximize SNR, Precision NMR Tubes have minimal paramagnetic impurities that would impact shimming. Tight I.D. and O.D. tolerance as small as 0.0065mm accommodates Wilmad inserts
Wilmad-LabGlass™ SP Scienceware™ 5mm O.D. Thin Walled Economy NMR Tubes
Designed for routine use in all NMR spectrometers, Wilmad Economy NMR Tubes are guaranteed to fit tightly in any spinner turbine and have zero NMR background
Bel-Art™ SP Scienceware™ Wilmad™ Stainless Steel Micro Spatula
Fits into most 4mm or larger OD NMR/EPR tubes. Bel-Art SP Scienceware™ Wilmad™ Stainless Steel Micro Spatula make solid state and gel-phase sample transfers easier.