FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (12): 205-208.doi: 10.7506/spkx1002-6630-200912045

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Uncertainty Evaluation of High Performance Liquid Chromatographic Determination of Sodium Formaldehyde Sulfoxylate (Rongalite) in Wheat Powder and Rice Powder

WANG Hui,CAO Xiao-yan*,PENG Xin-kai,HU Zhao-hui,HUANG Jiang-nan,HE Hong-mei   

  1. (Changsha Center of Supervision and Inspection on Food Quality Safety, Changsha 410013, China)
  • Received:2008-09-04 Revised:2008-11-22 Online:2009-06-15 Published:2010-12-29
  • Contact: CAO Xiao-yan*, E-mail:wanghuei158@163.com

Abstract:

A mathematical model for uncertainty evaluation and analysis of factors affected by measuring uncertainty was established according to the principles for determining of rongalite in wheat powder and rice powder by HPLC and methods for uncertainty evaluation provided by Guide to Uncertainty Evaluation in Chemistry Analysis. Uncertainty of measuring result was evaluated and described. The uncertainty of this experiment was 0.41 μg/g. The results suggest that the uncertainty of this experiment is mainly caused in process of sample treatment and associated with concentration of standard stock solution.

Key words: HPLC, wheat powder, rice powder, rongalite, uncertainty

CLC Number: