Uncertainty Analysis and Evaluation of Calibration Results of Meteorological Chromatograph

Gas chromatograph is a precise instrument, which has the advantages of high sensitivity, high efficiency and few samples and is used in industrial, chemical and environmental monitoring to analyze the concentration of complex mixtures. In order to use the measurement results and experimental data correctly, the corresponding uncertainty must be given according to the accuracy and fluctuation range of the numerical value. The degree of uncertainty determines the reliability of the measurement results. Therefore, taking the calibration of gas chromatograph as an example, this paper analyzes and evaluates the measurement uncertainty of the sensitivity calibration result of thermal conductivity detector.