分析测试学报2026，Vol.45Issue(1)：97-104,8.DOI:10.12452/j.fxcsxb.25061301
氮气中正丁醇标准气体的研制
Development of 1-Butanol Certified Reference Material in Nitrogen
摘要
Abstract
To support the effective implementation of environmental odor monitoring method stan-dards,the 1-butanol certified reference material with a concentration of 60 μmol/mol in nitrogen was prepared using the weighing method.The purity analysis of high-purity raw materials was conducted.An analytical method based on gas chromatography was developed for sample analysis,and its preci-sion,detection limit,and linearity were systematically evaluated.Furthermore,the preparation technology for the 1-butanol certified reference material was established,the preparation repeatabili-ty and coated cylinder suitability were also investigated.The minimum operating pressure and validity period of the sample were determined through pressure release experiments and stability studies.Af-terwards,the uncertainty of the 1-butanol certified reference material was evaluated.Results showed that the analytical method exhibited excellent precision and linearity.The 1-butanol certified refer-ence material in nitrogen displayed high preparation repeatability.The coated cylinders were con-firmed to be suitable for preparing 1-butanol certified reference material in nitrogen.Pressure varia-tions within the range of 10 MPa to 2 MPa had no statistically significant effect on the characteristic values of 1-butanol.The characteristic values can remain stable throughout the 16-month validation period,confirming long-term stability.Overall,the relative expanded uncertainty(k=2)of 1-buta-nol certified reference material in nitrogen developed by weighing method was 2％.The certified val-ues are fully traceable to SI units through rigorous calibration protocols.The 1-butanol certified refer-ence material provides a reliable reference for enhancing the accuracy and comparability of odour monitoring and quality management in China's ambient air and industrial exhaust systems.关键词
正丁醇/标准气体/称量法/放压试验/稳定性/气相色谱Key words
1-butanol/standard gas/weighing method/pressure release experiment/stability/gas chromatography分类
化学化工引用本文复制引用
高冰,郝宏伟,王帅斌,杨静,杜健..氮气中正丁醇标准气体的研制[J].分析测试学报,2026,45(1):97-104,8.基金项目
国家标准化管理委员会国家标准样品研复制计划项目(S2024123) （S2024123）
