计量学报2023，Vol.44Issue(12)：1904-1911,8.DOI:10.3969/j.issn.1000-1158.2023.12.17
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
Measurement and Uncertainty Evaluation of Fullerene Purity Based on Ultraviolet-visible Spectrophotometer
摘要
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.关键词
化学计量/富勒烯/纯度测量/紫外可见分光光度法/不确定度评定Key words
chemometrics/fullerene/purity measurement/ultraviolet-visible spectrophotometer/uncertainty evaluation分类
通用工业技术引用本文复制引用
赵春月,任玲玲,蒲成,邵鸿飞,姚雅萱..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[J].计量学报,2023,44(12):1904-1911,8.基金项目
国家自然科学基金青年基金(21908211) （21908211）
中国计量科学研究院基本科研业务费(AKYJJ1902) （AKYJJ1902）
