Analysis of uncertainty in the determination of aniline in soil by gas chromatography-mass spectrometry
In order to detect the uncertainty of aniline in soil,the article analyzed it using gas chromatography-mass spectrometry detection method.At the same time,the detection basis and principle of this detection method were briefly introduced,and the establishment of the detection model was systematically analyzed.The experimental re-sults indicate that the measurement result of aniline is 0.64 mg/kg,with an expanded uncertainty of 0.52 mg/kg(k=2).Meanwhile,research has found that the main influencing factors of uncertainty in the determination of ani-line in soil by gas chromatography-mass spectrometry are uncertainty introduced by recovery rate,uncertainty intro-duced by internal standard method,uncertainty introduced by instrument measurement repeatability,and uncertain-ty introduced during concentration and volumetric process.The uncertainty introduced during the sample weighing process in daily work can be almost negligible.
Measurement uncertaintyQuality assurance data qualityReliability
万方数据
维普
