The methods available for the measurement of this temperature parameter and for this laboratory centrifuge equipment are not well developed. Therefore, they do not allow us to know what really happens during a centrifugation cycle in the sample housing.
The service generally offered by metrological service providers is a heating measurement (difference in T°C after – T°C after centrifugation). This measurement is not very reproducible because the pre-conditioning conditions of all the accessories are not controlled.
Moreover, this method does not make it possible to detect a temperature increase during the centrifugation cycle. The second method generally used by internal metrology departments is to compare the indications of the control probe with a reference probe.
However, this method does not take into account the strong heterogeneity of the temperature in the chamber (the vessel) nor the impact of the rotation speed on the rotor assembly and therefore on the samples.
Therefore, the objective of the method developed by our laboratory is to allow the control of the centrifugation process from the preparation of the equipment to the end of the cycle for different speed-temperature couples. In this way, we will avoid any risk of alteration of the centrifuged samples and we will ensure the validity of the results.