The main goal of KovriginNMR VT is to enable semi-automated variable-temperature (VT) NMR experiments in the widest temperature range with easy control of hardware and using accurate calibrations. KovriginNMR directly controls all parameters of the Bruker variable-temperature unit (VTU) and uses parameter values appropriate to the temperature range, solvent, spinner type, and type of a chiller. This allows NMR spectroscopist to focus on the NMR experiments and their results without a need to keep in mind minute details of VTU operation. KovriginNMR allows to perform automatic heating or cooling of the probe to a requested temperature with subsequent return of a spectrometer back to ambient conditions after the experiment. Automation routines for VT experiments in KovriginNMR include acquisition of series of NMR spectra at a range of temperature points. Tuning, locking, and shimming are performed prior to acquisition at every temperature point.
KovriginNMR software suite is written in Python and runs inside Topspin. The user controls it through user-defined buttons and flowbars as well as directly through writing short Python scripts calling KovriginNMR library functions.
Evgenii Kovrigin (C) 2022