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 1/PKTUBE NMR
Tube, NMR; Norell; 5mm; Class B Glass; With Caps; Straight; 300 MHz; Length: 8 in.; Clear
Chemglass Life Sciences Tube, NMR, 3mm, Select Series™, With Caps, 8"" Long, 500 MHz, Concentricity 0.0050mm, Camber 0.0130mm
Tube, NMR, 3mm, Select Series™, With Caps, 8" Long, 500 MHz, Concentricity 0.0050mm, Camber 0.0130mm. 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.
Chemglass Life Sciences Insert, Coaxial, 5mm, Norell, For Varian Spectrometer, 2mm OD x 60mm Length, 636µL Sample Capacity
Insert, Coaxial, 5mm, Norell, For Varian Spectrometer, 2mm OD x 60mm Length, 636µL Sample Capacity.
Chemglass Life Sciences NMR Tube Cleaner, Wong, 5mm X 7in Tube, Washer Only
NMR Tube Cleaner, Wong, 5mm X 7in Tube, Washer Only. Design permits the cleaning of four NMR tubes at the same time. With solvent in the reservoir, rapid suction wets the inside of the NMR tube dislodging the contamination. An acetone wash followed by an air stream dries the tube in seconds. Rate of cleaning is approximately 4 tubes per minute. The NMR tube is inserted into the cleaner with a poly-pro cap placed on the closed end to provide support and a vacuum seal. Lower joint is a 24/40 inner, and the hose connection has an O.D. of 8.5mm at the middle serration. NOTE: FOR USE WITH 5mm O.D. X 7in TUBES ONLY.**Designed and developed by Dr. Jessie Wong, Schering Plough Research
Chemglass Life Sciences NMR Tube Cleaner, Complete
NMR Tube Cleaner, Complete. All glass and PTFE design cleans five NMR tubes of the same, or various, lengths and diameters. PTFE adapter has five positions with flexible 1/8” PTFE tubing supplied in 9” lengths that can be cut to desired height. The NMR tube is placed over the tubing and seats in the adapter, leaving a small space between the end of the PTFE tubing and the inside bottom of the NMR tube. With the stopcock in the closed position, the reservoir is connected to a low vacuum source. Cleaning solvent is added into the adapter followed by air drying to complete the process in seconds. Flexible tubing and adapter design reduces breakage. Stopcock permits easy draining of solvent. Hose connection is 10mm at the largest serration.
Chemglass Life Sciences NMR Tube Cleaner, Morris, For 10mm X 7in NMR Tube, Complete
NMR Tube Cleaner, Morris, For 10mm X 7in NMR Tube, Complete. The Morris NMR tube cleaner is an inexpensive, durable apparatus which will clean 10mm 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 NMR Tube Cleaner Only, Morris, For 5mm X 8in NMR Tube
NMR Tube Cleaner Only, Morris, For 5mm X 8in NMR Tube. Replacement tube cleaner for CG1850 series.
Sigma Aldrich Fine Chemicals Biosciences Shigemi 3 mm Symmetrical N1EA
Shigemi NMR microtubes offer high precision quality in NMR spectroscopy. The NMR microtubes are made out of a special type of hard glass wtih excellent chemical durability and are magnetic susceptibility matched to each of the solvents they are identified with.The Symmetrical NMR microtube consists of outer tube and insert with these featuresMagnetic susceptibility matched to a variety of solvents for the best reSOLUTIONon in these solvents using minimal amount of sampleThe small sample size will not affect the spectral reSOLUTIONon or the sidebandsEach microtube assembly consists of an insert and an outer sample tubeSuitable for 900 MHz NMR instrumentsChoose a bottom length that most closely matches the probe coil.
Sigma Aldrich Fine Chemicals Biosciences KontesR NMR tubes 5 mm dia
Each and every precision 5 mm tube is 100% gauged to meet the most exacting standards. These tubes are made of KG-33 borosilicate glass and are ideal for sealing directly to vacuum manifolds joints or valves. Wall thickness for these precision tubes is 0.38 mm.Caps are attached. All tubes supplied in packs of 5.
Sigma Aldrich Fine Chemicals Biosciences KontesR NMR tubes 5 mm dia
5 mm disposable tubes are manufactured from N-51A borosilicate glass. Wall thickness for these tubes is 0.015 in. Supplied without a sandblasted marking spot in a bundled multi-pack.Caps are included but not attached.
Sigma Aldrich Fine Chemicals Biosciences AldrichR ColorSpecR NMR tu
This new range of premium quality NMR sample tubes feature color-coded banding and caps and a MHz rating that allows instant visual identification to tube grade and application. No more mix ups after cleaning.Precision grade NMR tubes are made from Type I Class A thin-wall (0.38 mm) borosilicate glass for compatibility with ground joints valves and vacuum racks. They are precision ground and highly polished for spinning stability and highest reSOLUTIONon for any NMR spectroscopy application.Thrift and disposable grade tubes are made from Type I Class B medium wall (0.43 mm) borosilicate glass. Disposable NMR tubes include the caps.Color coded banding and caps indicate tube gradeMHz rating imprinted on every tubeMarking spotCaps are supplied in separate bags of 100
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.
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.
Sigma Aldrich Fine Chemicals Biosciences Shigemi 5 mm Symmetrical N1EA
Shigemi NMR microtubes offer high precision quality in NMR spectroscopy. The NMR microtubes are made out of a special type of hard glass wtih excellent chemical durability and are magnetic susceptibility matched to each of the solvents they are identified with.The Symmetrical NMR microtube consists of outer tube and insert with these featuresMagnetic susceptibility matched to a variety of solvents for the best reSOLUTIONon in these solvents using minimal amount of sampleThe small sample size will not affect the spectral reSOLUTIONon or the sidebandsEach microtube assembly consists of an insert and an outer sample tubeSuitable for 900 MHz NMR instrumentsChoose a bottom length that most closely matches the probe coil.