Development of Temperature Calibration Device for Microwave Digestion System in Biochemical Laboratory

Abstract

As a sample pretreatment device, microwave digestion instrument is widely used in biochemical laboratories. The temperature parameters of the microwave digestion instrument directly decide the accuracy of the experimental results. At present, there is no relevant calibration specification，method or device for microwave digestion system in China. Due to the special working principle of the microwave digestion instrument, the calibration device must be used in the high temperature microwave environment, and the ordinary temperature measuring device will cause ignition, explosion and other phenomena, which will endanger the life and health of the calibration personnel. This article presents a set of calibration device for microwave digestion system, with measuring range of (0~200) °C, accuracy of no less than ± 0.1 °C, and resolution of 0.01 °C. The presented device also solves the potential problems of ignition and explosion, which commonly exist in ordinary temperature measuring devices.