基于紫外可见分光光度法的富勒烯纯度测量不确定度评定

doi:10.3969/j.issn.1000-1158.2023.12.17

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Abstract The purity has an impact on fullerene’s mechanical, thermal and other properties of fullerene, hence its applications in lubricity, superconductivity and other related areas. Ultraviolet-visible (UV-vis) spectrophotometer is a simple and convenient technique for rapid determination of fullerene purity. Yet, elaborated systematic analysis on measurement influencing factors are currently not been reported. Based on UV-vis spectrophotometer, a mathematical model for purity determination of C60 was established, and uncertainty was evaluated by analyzing all possible uncertainty sources. The results showed that the purity of C60 prepared by arc method is (74±7)%, k=2; and the purity of C60 prepared by combustion method is (99±9)%, k=2. Based on uncertainty evaluation, main sources of uncertainty come from linear fitting of standard curve and preparation of standard series solutions, which may provide technical basis for optimization of measurement conditions with reduced uncertainty and improved accuracy for future study.

Key words： chemometrics fullerene purity measurement;ultraviolet-visible spectrophotometer uncertainty evaluation

Received: 08 September 2022 Published: 27 December 2023

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TB99

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	Articles by authors
	ZHAO Chun-yue
	RENG Ling-ling
	PU Cheng
	SHAO Hong-fei
	YAO Ya-xuan

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ZHAO Chun-yue,RENG Ling-ling,PU Cheng, et al. Measurement and Uncertainty Evaluation of Fullerene Purity Based on Ultraviolet-visible Spectrophotometer[J]. Acta Metrologica Sinica, 2023, 44(12): 1904-1911.

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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2023.12.17 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2023/V44/I12/1904

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