Uncertainty evaluation for determination of free gossypol in vegetable oil by high performance liquid chromatography

Authors

LONG Jin-lin, Jinan Center for Food and Drug Control, Jinan, Shandong 250102, China
WANG Chun-lin, Shandong Chengkong Testing Technongogy Co., Ltd., Jinan, Shandong 250102, China
TAO Yin-feng, Shandong Chengkong Testing Technongogy Co., Ltd., Jinan, Shandong 250102, China
SUN Xiao-han, Jinan Center for Food and Drug Control, Jinan, Shandong 250102, China
LI Shuo, Jinan Center for Food and Drug Control, Jinan, Shandong 250102, China

Abstract

According to the detection method of free gossypol in vegetable oil，this paper establishes a mathematical model of uncertainty evaluation for determination of free gossypol in vegetable oil . The main sources of uncertaintyin measurement arising from procedure of testing were analyzed and evaluated. The evaluation results showed that the fitting of standard curve, the performance of liquid chromatograph and the repeatability of sample pretreatment made great contribution to the uncertainty of free gossypol detection results. When the content of free gossypol in edible oil was 48 mg/kg, the expanded uncertainty was 5 mg/kg (k=2).

Publication Date

4-28-2021

First Page

76

Last Page

79

DOI

10.13652/j.issn.1003-5788.2021.04.014

Recommended Citation

Jin-lin, LONG; Chun-lin, WANG; Yin-feng, TAO; Xiao-han, SUN; and Shuo, LI (2021) "Uncertainty evaluation for determination of free gossypol in vegetable oil by high performance liquid chromatography," Food and Machinery: Vol. 37: Iss. 4, Article 14.
DOI: 10.13652/j.issn.1003-5788.2021.04.014
Available at: https://www.ifoodmm.cn/journal/vol37/iss4/14

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