Food and Fermentation Industries >

2023 , Vol. 49 >Issue 21: 264 - 269

DOI: https://doi.org/10.13995/j.cnki.11-1802/ts.033755

Uncertainty evaluation in determination of 4 kinds of benzene hexachloride residues in juice by gas chromatography-tandem mass spectrometry

  • ZHANG Junli ,
  • ZHANG Diya ,
  • CHI Heng ,
  • GE Chiyu
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  • (Food and Pharmaceutical Research Institute, Jiangsu Food and Pharmaceutical Science College, Huai'an 223005, China)

Received date: 2022-09-24

  Revised date: 2022-11-23

  Online published: 2023-12-08

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Abstract

This study aimed to evaluate the uncertainty for the determination of α-benzene hexachloride (BHC), β-BHC, γ-BHC, and δ-BHC in juice by gas chromatography-tandem mass spectrometry (GC-MS/MS). GB 23200.113—2018 was used to determine the content of BHC in juice. The mathematical model of uncertainty was established to analyze the uncertainty caused by various factors in the determination process, including sample solution, analytical instrument, method recovery, standard series working solutions, and standard curve fitting. The expanded uncertainties for α-BHC, β-BHC, γ-BHC, and δ-BHC were 0.008 6, 0.008 8, 0.009 0, and 0.010 0 mg/kg respectively. The fitting of the standard curve and the preparation of the standard series working solutions were the main factors which affected the determination of BHC in fruit juice by GC-MS/MS. Adjusting the weight of the standard curve can improve the quantitative accuracy of the low-concentration points. During the preparation of standard solutions, an appropriate dilution method should be selected and various measuring tools should be used standardly.

Key words： gas chromatography-tandem mass spectrometry; juice; benzene hexachloride; uncertainty; standard curve fitting; standard series working solutions

Cite this article

ZHANG Junli , ZHANG Diya , CHI Heng , GE Chiyu . Uncertainty evaluation in determination of 4 kinds of benzene hexachloride residues in juice by gas chromatography-tandem mass spectrometry[J]. Food and Fermentation Industries, 2023 , 49(21) : 264 -269 . DOI: 10.13995/j.cnki.11-1802/ts.033755

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