Parameterized signal calibration for NMR cryoporometry experiment without external standard.
In cryoporometric experiments non-linear effects associated with the sample and the probehead bring unwanted contributions to the total signal along with the change of temperature. The elimination of these influences often occurs with the help of an intermediate measurement of a separate liquid sample. In this paper we suggest an alternative approach under certain assumptions, solely based on data from the target experiment. In order to obtain calibration parameters the method uses all of these raw data points. Its reliability is therefore enhanced as compared to other methods based on lesser number of data points. Presented approach is automatically valid for desired temperature range. The need for intermediate measurement is removed and parameters for such a calibration are naturally adapted to the individual sample-probehead combination.
AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland. Electronic address: greg.stoch@outlook.com.
Grzegorz
G
Stoch
AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland.
Artur T
AT
Krzyżak
Confined liquid; Cryoporometry; NMR; Pore size distribution; Signal calibration