Select Series™ 3mm, Ultra-Precision NMR Tubes, 5 Pack

• 3mm
• 200MHz 
• 8 Inch (203mm)
• Ships with Economy Cap. NorLoc™ Caps Sold Separately.

Our “Select Series™” NMR tubes are manufactured out of ASTM Type 1 Class A glass, commonly referred to as Pyrex® 7740 (Corning), Duran® (Schott Glass), or Kimax® KG-33 (Kimble) glass. 

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 under any other application where large temperature variations are required in the experiment. 

Each NMR tube is checked for concentricity and camber specifications utilizing the latest computer technology. 

Secure Series™ NMR Tubes 5 Pack

• 5mm
• 400MHz 
• 7 Inch (178mm)
• Includes “Norloc™ with Security Band” Caps
• A patented proprietary surface treatment with a unique textured surface ensures precise and positive retention in Bruker, Agilent/Varian, and Jeol spinner turbines.

The Secure 33 Series™ NMR tubes are made from ASTM Type I Class A borosilicate glass ("low expansion" borosilicate glass such as Corning Pyrex® 7740 or equivalent) and match the properties of the Select Series™ NMR tubes from Norell®.

Secure Series™ NMR tubes feature several patented design elements that add a superior level of sample containment and isolation, safeguarding the integrity of precious or critical NMR samples and assuring secure retention of the NMR tube in the spinner turbine.

Secure Series™ NMR Tubes ship with our patented NorLoc Caps™ featuring a Security Band™ that engages and locks into the NorLoc II Security Cap™, securely joining the cap to the NMR tube. 

Select Series™ 5mm, Ultra-Precision NMR Tubes, 5 Pack

• 5mm
• 600MHz 
• 8 Inch (203mm)
• Ships with Economy Cap. NorLoc™ Caps Sold Separately.

Our “Select Series™” NMR tubes are manufactured out of ASTM Type 1 Class A glass, commonly referred to as Pyrex® 7740 (Corning), Duran® (Schott Glass), or Kimax® KG-33 (Kimble) glass. 

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 under any other application where large temperature variations are required in the experiment. 

Each NMR tube is checked for concentricity and camber specifications utilizing the latest computer technology. 

Screw-Cap NMR Sample Tubes, 1 Pack 
Screw-Cap Septum NMR Tubes offer both convenience of a screw cap and that of a septum where material can be removed. Convenient screw-cap access with the security of a fluoropolymer (PTFE) seal. Supplied with open top cap & fluoropolymer/silicone septum for quick and clean access with a 22 gauge standard point needle.   

• 5mm
• 8" (203mm)
• 600 MHz
• Each Screw-Cap Tube comes complete with open top Polypropylene screw cap and PTFE/Silicone septum 
• Inert to most organic solvents and compounds but not recommended for use with strongly corrosive materials 
• Not recommended for multiple punctures

5mm, Standard, Natural Quartz EPR Sample Tubes, 5 Pack
Norell EPR tubes produce lower background signals and have better resistance to breakage than competitor brands. Our proprietary technical treatment reduces background noise along with the benefit of protecting against tube breakage. 

Additionally, we have designed a new fluoropolymer closure system around our fire-polished tube ends that prevents sample loss during temperature gradients. Available in both standard and ultra precision. Supplied with tapered  fluoropolymer caps.

• 5mm
• 250mm Length
• O.D. 5mm
• I.D. 4mm

5mm NMR Tube Septa, 100 Pack

• 5mm
• Color: White
• Compatible with our thin wall and medium wall NMR tubes

These precision molded natural rubber septa for 5mm and 10mm NMR sample tubes seal against both the inner and outer surfaces of standard, thin wall NMR tubes, providing the ultimate protection for sensitive or reactive samples, isolating them from contact with air, moisture and other ambient contaminants.

This dual seal septum likewise protects personnel against exposure to samples that may pose health or safety hazards, while still allowing easy access through the septum, using a syringe, to add, transfer or retrieve samples from the NMR tube.

Amberized Standard Series NMR Sample Tubes, 1 Pack

• 5mm
• 7" (178mm)
• 600MHz
• For Routine NMR

Amberized NMR tubes offer photosensitive materials protection from visible and ultraviolet radiation. Typical optical transmittance values at 650nm to 300nm range from 0% to 50% (this region includes the visible spectrum). From 300nm to 190nm, in the UV region, the optical transmittance is virtually 0%, due primarily to the intrinsic opacity of glass to UV radiation.

Available with ULTRA-THIN wall NMR Tubes.

Pictured with optional NorLoc™ Cap. Constricted NMR tubes ship with economy caps.