Evaluation of uncertainty for the determination of sodium cyclamate in Baijiu by liquid chromatography tandem mass spectrometry with internal standard method
The content of sodium cyclamate in Baijiu was determined by liquid chromatography tandem mass spectrometry with internal standard method.The sources of uncertainty were analyzed during the measurement process,and the values of uncertainty were evaluated.The results showed that when the content of sodium cyclamate in Baijiu was 0.27 mg/kg,the ex-panded uncertainty was 0.04 mg/kg(k=2).The main factors affecting the uncertainty of measurement results were the prepa-ration of standard solution,calibration curve fitting and measuring instruments.This study helps to improve the quality sta-bility of laboratory testing,and provides effective reference for establishing quality control methods for measuring sodium cy-clamate.
UncertaintyLiquid chromatography tandem mass spectrometryInternal standard methodSodium cyclamateWhite spirit
万方数据
维普
