Select Series™ Constricted | 3mm | 7 Inch | High-Throughput NMR Sample Tube - 1 Per Pack

Constricted Select Series NMR Sample Tubes, 1 Pack

• 3mm
• 7" (178mm)
• High-Throughput
• I.D. at Constriction: 1.5mm - 2.0mm
  
  Constricted NMR tubes offer a convenient way to seal your sample from air or other contaminants. Simply heat the constricted portion using a suitable heat source (e.g. a small butane torch) then gently twist and pull on the open end to seal. Also allows samples to be stored under vacuum or inert gas. (Please note: constricted tubes are specified and ordered by the required finished length and are measured from the tube bottom to the center of the constriction.)
  
  Pictured with optional NorLoc™ Cap. Constricted NMR tubes ship with economy caps.