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Uncertainty Evaluation for Determining Sorbic Acid in Wine by High Performance Liquid Chromatography

GUAN Yongyi1, QIU Zhichao2, SONG Yang1, CHEN Yufang1, WANG Jinhua3, LI Xiaolin3, ZOU Zhifei1, LIN Haidan1   

  1. 1. Inspection and Quarantine Technology Center, Guangdong Entry-Exit Inspection and Quarantine Bureau,
    Guangzhou 510623, China; 2. Guangzhou Quality Supervision and Testing Institute, Guangzhou 510110, China;
    3. Inspection and Quarantine Technology Center, Beijing Entry-Exit Inspection and Quarantine Bureau, Beijing 100026, China
  • Online:2015-08-25 Published:2015-08-17

Abstract:

The sources of uncertainty in high performance liquid chromatography (HPLC) determination of sorbic acid in
wine were fully analyzed according to the mathematical model. The uncertainties were mainly attributed to the calibration of
measuring tools used in the preparation of standard curve, and the repeated experiments in the determination. The content of
sorbic acid in wine could be shown as (70.4 ± 2.7) mg/kg (k = 2).

Key words: high performance liquid chromatography (HPLC), wine, sorbic acid, uncertainty

CLC Number: