Objective Quality control chart was used to monitor the process of determination of benzo(α)pyrene in edible vegetable oil. Methods The content of benzo(α)pyrene in the quality control sample of edible oil was determined by liquid chromatography (fluorescence detector), and the measured data was plotted as a quality control chart. Results The upper warning limit and the upper action limit of the control chart ( chart) were 0.105 μg/kg and 0.136 μg/kg, respectively. The warning limit of the control chart ( chart) was 21.727~29.199 μg/kg, and the action limit was 19.859~31.067 μg/kg. Conclusion The use of quality control chart can help to detect abnormal factors in the testing process in time, control the quality of the test results effectively, and ensure the accuracy and reliability of the test data.
标题:质量控制图在食用植物油苯并(α)芘测定中的应用
英文标题:Application of quality control chart in the determination of benzo(α)pyrene in edible vegetable oil