Uncertainty Evaluation of HPLC Determination of Melamine in Milk Powderchromatography

doi:10.7506/spkx1002-6300-201004059

FOOD SCIENCE ›› 2010, Vol. 31 ›› Issue (4): 250-253.doi: 10.7506/spkx1002-6300-201004059

• Analysis & Detection • Previous Articles Next Articles

Uncertainty Evaluation of HPLC Determination of Melamine in Milk Powderchromatography

YANG Yang，XU Chun-xiang，CHE Wen-jun

Jiangsu Provincial Supervising and Testing Institute for Products Quality, Nanjing 210029, China

Received:2009-03-31 Revised:2009-09-04 Online:2010-02-15 Published:2010-12-29
Contact: YANG Yang E-mail:yy2304@126.com

Abstract

Abstract:

The sources of uncertainty in high performance liquid chromatographic (HPLC) determination of melamine in milk powder were fully analyzed according to the calculation formula of melamine. Each uncertainty component was modeled. Uncertainty evaluation was conducted for fitting of standard curve of melamine and less measurement times by least square method and extreme deviation method, respectively. HPLC determination with uncertainty evaluation by the method gave the (2.00 ± 0.088) mg/kg melamine content in a randomly inspected commercial milk powder (weighed 2.00 mg). This method proves to be applicable to the uncertainty evaluation of HPLC determination of melamine in milk powder.

Key words: uncertainty, HPLC, melamine, milk powder

CLC Number:

O657.72

YANG Yang，XU Chun-xiang，CHE Wen-jun. Uncertainty Evaluation of HPLC Determination of Melamine in Milk Powderchromatography[J]. FOOD SCIENCE, 2010, 31(4): 250-253.

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Uncertainty Evaluation of HPLC Determination of Melamine in Milk Powderchromatography

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