高效液相色谱法测定绝缘油中糠醛含量的不确定度评定

doi:10.3969/j.issn.1000-1158.2022.04.20

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Abstract Furfural content in transformer oil can evaluate the aging condition of transformer insulating paper and reflect its insulation performance. Through the quantitative analysis of furfural content in transformer oil by high performance liquid chromatography, the mathematical model was established. It was determined that the uncertainty sources of the determination results are furfural reference material, preparation of standard oil, fitting of standard curve, sample preparation, recovery and measurement repeatability, and the uncertainty of the test results was evaluated. The experimental results showed that the concentration of furfural in the electric insulating oil is 1.05mg/kg, and its extended uncertainty U95=0.03mg/kg, the fitting of standard curve is the main source of uncertainty in the determination of furfural by HPLC.

Key words： metrology furfural transformer oil uncertainty fitting of standard curve HPLC

Received: 22 May 2020 Published: 08 April 2022

PACS:

TB99

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	Articles by authors
	ZHANG Lin-ying
	HE Shi-zhong
	QIU Hui-rao
	ZHANG Jing-ru

Cite this article:

ZHANG Lin-ying,HE Shi-zhong,QIU Hui-rao, et al. Uncertainty Evaluation for the Furfural Content in Transformer Oil by HPLC[J]. Acta Metrologica Sinica, 2022, 43(4): 560-564.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2022.04.20 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2022/V43/I4/560

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