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.
Chemglass Life Sciences Tube, NMR, 5mm, Select Series, With Caps, 8" Long, 200 MHz, Concentricity +- 0.0090mm, Camber +- 0.0350mm
Tube, NMR, 5mm, Select Series, With Caps, 8" Long, 200 MHz, Concentricity 0.0090mm, Camber 0.0350mm. NORELL Select Series NMR Tubes are specifically designed for high-resolution NMR. These tubes are manufactured out of ASTM Type 1 Class A glass, commonly referred to as Pyrex 7740 (Corning), Duran, or Kimax (Kimble) KG-33 glass. Several key properties that make this glass type desirable for NMR are its high degree of thermal shock resistance and low expansion coefficient. This allows for a greater margin of safety from breakage when used in variable temperature applications and freeze/thaw cycling, or any other application where large temperature variations are required in the experiment.
Sigma Aldrich Fine Chemicals Biosciences WilmadR NMR tubes 5 mm dia
Made of Pyrex(R) borosilicate glass (unless otherwise noted) for compatibility with ground joints valves and vacuum racks. Precision ground and highly polished for spinning stability and highest reSOLUTIONon.Tubes have round bottoms and include a sandblasted marking spot for labeling samples. Tubes are thin-walled unless otherwise stated. Tubes that are 9 in. L are for making standards and for use with tip-off manifolds. Precision Wilmad NMR tubes are suitable for high field NMR spectroscopy. Caps included.
Chemglass Life Sciences NMR Tube Cleaner, Morris, For 5mm X 9in NMR Tube, Complete
NMR Tube Cleaner, Morris, For 5mm X 9in NMR Tube, Complete. The Morris NMR tube cleaner is an inexpensive, durable apparatus which will clean 5mm NMR tubes with as little as 10mL of solvent in one easy operation. Cleaner does not require a stopper on the NMR tube and does not have a fragile side arm. Complete item is supplied with a NMR tube washer, adapter, 250ML HW filter flask and instructions for use.**Designed and developed by Mr. Earl Morris, Georgetown University, Washington DC
Chemglass Life Sciences Tube, NMR, 5mm, Select Series, With Caps, 7" Long, 500 MHz, Amber, Concentricity +- 0.0050mm, Camber +- 0.0130mm
Tube, NMR, 5mm, Select Series, With Caps, 7" Long, 500 MHz, Amber, Concentricity 0.0050mm, Camber 0.0130mm. NORELL Select Series Amber NMR Tubes offer photosensitive materials protection from visible and ultraviolet radiation. Typical absorbance (ABS) is between 0.5 and 1.0 from 650 to 300nm and is greater than 1.0 from 300 to 190nm. These tubes are manufactured out of ASTM Type 1 Class A glass, commonly referred to as Pyrex 7740 (Corning), Duran, or Kimax (Kimble) KG-33 glass. Several key properties that make this glass type desirable for NMR are its high degree of thermal shock resistance and low expansion coefficient. This allows for a greater margin of safety from breakage when used in variable temperature applications and freeze/thaw cycling, or any other application where large temperature variations are required in the experiment.
Wilmad-LabGlass™ NMR Tubes
Helps increase the shimming quality and SNR. Wilmad™ NMR Economy Tubes are high field MicroProbe tubes are more precise in terms of camber and concentricity than stock tubes.
Wilmad-LabGlass™ SP Scienceware™ 15mm O.D. Thin Walled Precision NMR Tube
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™ 13mm O.D. Thin Walled Precision NMR Tube
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
Bel-Art™ SP Scienceware™ Wilmad-LabGlass™ Spinner Turbine Insert
Bel-Art™ SP Scienceware™ Wilmad-LabGlass™ Spinner Turbine Insert is a small volume NMR spinner insert that holds a variety of microsample capillaries.
Wilmad-LabGlass™ SP Scienceware™ 15mm O.D. Heavy Walled Precision NMR Tube
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
Bel-Art™ SP Scienceware™ Wilmad™ Spinner Bearing
Ensure shimming quality of your glass tubes. Bel-Art SP Scienceware™ Wilmad™ Spinner Bearing will determine which of your NMR tubes are warped and bent.
Wilmad-LabGlass™ SP Scienceware™ 5mm O.D. Thin Walled Suprasil™ NMR Tube
Wilmad Precision NMR Suprasil™ (Synthetic Quartz) Tubes are manufactured from high purity synthetic fused silica materials with <0.005ppm Fe2O3 and outstanding optical characteristics in the deep UV to the near IR
Wilmad-LabGlass™ SP Scienceware™ 10mm O.D. Medium Walled Precision NMR Tube
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
Wilmad-LabGlass™ SP Scienceware™ 8mm O.D. Thin Walled Precision NMR Tube
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™ 15mm O.D. Medium Walled Precision NMR Tube
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