Objective Uncertainty of bis-butyl ester (DBP) in measurement by gas chromatography-mass spectrometry (GC/MS) was analyzed. Methods Phthalate esters in wine were determined by GC/MS according to GB/T 21911-2008 “Determination of Phthalate Esters in Foods”. According to JJF 1059-1999 “Evaluation and Expression of Uncertainty in Measurement”, the source of uncertainty in the whole process of measurement was analyzed. Results The results showed that the expanded uncertainty was 0.01135 mg/kg. Conclusion This method was applicable to the uncertainty evaluation of GC-MS determination of bis-butyl ester in wine.
标题:气相色谱-质谱法测定葡萄酒中邻苯二甲酸 二丁酯含量的不确定度评定
英文标题:Uncertainty evaluation of the determination of bis-butyl ester in wine by gas chromatography-mass spectroscopy