转基因定量检测量值转换系数的研究进展

doi:10.3969/j.issn.1000-1158.2024.06.19

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Abstract The quantitative results of GM content determined by PCR-based technology are mainly copy number ratio, whereas the labeling regulation specified that the quantitative result must be expressed in the form of a mass fraction. The lack of consistency in measurement unit hinders direct decision-making based on test results. It is urgent to investigate the quantity value relationship between the two measurement scales, and establish a methodology for determining the “conversion factor” value, thus ensuring the direct comparison between quantitative results and labeling threshold. The international labeling systems of genetically modified product are summarized, key affect factors for determining the “conversion factor” and characterization method established by the European Union are systematically analyzed, and the importance of conducting the relevant study in China is also discussed. This review can provide reference for the effective implementation of the labeling system in China.

Key words： biometrology genetically modified product reference material conversion factor digital PCR;product labeling system

Received: 08 October 2023 Published: 06 June 2024

PACS:

TB99

Fund:Agricultural Biological Breeding Major Program

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	Articles by authors
	LIU Yuanyuan
	LI Jiali
	JI Shuaishuai
	GAO Yunhua
	LIU Danmei
	WANG Di

Cite this article:

LIU Yuanyuan,LI Jiali,JI Shuaishuai, et al. Research Progress on the Conversion Factor of Quantity Value for Genetically Modified Organism Quantification[J]. Acta Metrologica Sinica, 2024, 45(6): 922-928.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2024.06.19 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2024/V45/I6/922

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