... with long experience in developing CP/MAS-Probes for Varian, Agilent, Bruker, Jeol, Tecmag and other systems.
Various probes are available:
Supporting the NMR/MRI researcher with custom probe development expertise and the best solids NMR and MRI-RF products.
Please call us for technical details and specifications.
Manufactured from the highest purity Zirconia, our MAS Rotors provide the NMR spectroscopist with the ultimate alternative for analysis of solid samples. The need to solvate solid samples is eliminated. They are available for most of the present solid state NMR spectrometers. Our MAS Rotors are carefully examined for material irregularities by various methods before and after the precision machining process. High precision (which becomes a necessity for proper spinning performance) is maintained in the manufacture of the end caps. Most end caps are fitted with O-rings for better sealing. Some caps have axial holes for venting.
Constructed of Pyrex® glass, these NanoProbe tubes are suitable for NMR analysis of solids, semi-solids and liquids. Special machining at close tolerances allow the tubes to operate at 2,5 kHz and slightly higher. These NanoProbe tubes offer the advantage of easy handling, cleaning, filling and reliability (tested in Varian NanoProbes).Each cap has an axial hole for venting air from the tube. A small plug is provided for closing the hole in experiments where evaporation and/or liquid spill over must be avoided. O-ring seals are used on caps and plugs. With special caps (on request) higher spinning speeds are possible (3 - 4 kHz).
Three volumes are available 110 µl- each consisting of a Pyrex tube and a cap (Ertalyte or Kel-F)60 µl and 40 µl- each consisting of a Pyrex tube, a cap and a plug (Ertalyte or Kel-F)
2.5mm rotors for Bruker CP / MAS probeswith radically reduced 1H background (Vmax 20 - 25 kHz), allows excellent spinning speed with significantly less 1H background signal.
Enables absolutely precise removal of the end cap when used in conjunction with the end cap removal tool supplied with the probe.
Many years ago we found the top or bottom cap of various MAS-probes were very difficult to remove using a tool supplied with the probe.
Rototec-Spintec started to develop a rotor clamp to grip the rotor and enable the user to unscrew the rotor from the upper and lower caps.
This product was the world’s first rotor turbine cap remover.
For air-sensitive samples and semi-solid samples such as gels or highly viscous liquids, the sample is simply sealed into the insert tube by heat-sealing with a torch, or by applying a small drop of epoxy to the constriction. After the epoxy is set and dry, the sealed insert is then cut through the constriction with a glass saw. Using a small funnel, powder samples can be packed into the insert. Gelatinous samples can be incorporated for the sealing of air-sensitive samples.