Sapienza NMLab

Cryoprobe

The cryoprobe is the answer to the main limiting factor of NMR spectroscopy, i.e. its relative low sensitivity, especially on some important heteronuclei such as ¹³C, which have little natural abundance.

The principle on which the cryoprobe is based is to reduce the thermal noise of the receiver system (probe and preamplifier) ​​by keeping it at low temperature. The cryoprobe with which the NMLab NMR spectrometer is equipped is cooled with liquid nitrogen, at a temperature of around -200 ° C.

Features:

Liquid nitrogen cooling.
Liquid nitrogen refill without the need to stop the analysis.
Observable nuclei: ¹H, ¹³C, ³¹P, ²⁹Si or ¹⁵N.
Sensitivity: ≥1500 for ¹H (with 0.1% Ethylbenzene sample, 1 scan), ≥870 for ¹³C (with ASTM sample, 1 scan).
Temperature range: -40 to + 150° C.
Autotuning compatible