Abstract：The process of determining fatty acid value of wheat flour by benzene extraction method was studied. Each uncertainty component of the method was analyzed. The modeling, component calculation, synthetic standard uncertainty and extended uncertainty in the uncertainty evaluation were described.The results showed that when the fatty acid value of wheat flour was 54.8mg/100g, the expanded uncertainty was 1.2mg/100g, k=2. Blank test was the main reason for introducing uncertainty.
林秀,谢婷婷,林滉,郑琳. 小麦粉脂肪酸值测定的不确定度分析[J]. 计量学报, 2021, 42(12): 1674-1678.
LIN Xiu,XIE Ting-ting,LIN Huang, ZHENG Lin. Analysis of the Uncertainty in Determination of Fatty Acid Value of Wheat Flour. Acta Metrologica Sinica, 2021, 42(12): 1674-1678.
［1］王旭亮, 赵静红,李宗雨, 等. BSA法测定超滤膜截留率的不确定度评定［J］. 计量学报, 2019, 40(2): 337-342.
Wang X L, Zhao J H, Li Z Y, et al. Uncertainty Evaluation for the Determination of the Retention Ratio of the Ultrafiltration Membrane by BSA-67000［J］. Acta Metrologica Sinica, 2019, 40(2): 337-342.
［2］邸铮,贾伯阳,周荔,等. 高效液相色谱法测定化妆品中防晒剂奥克立林含量的不确定度评定［J］. 计量学报, 2020, 41(12): 1570-1575.
Di Z, Jia B Y, Zhou L,et al. Uncertainty Evaluation for Determination of Octocrilene Derivatives as Sunscreen Agent in Cosmetics by High Performance Liquid Chromatography［J］. Acta Metrologica Sinica, 2021, 41(12): 1570-1575.
［3］胡红波, 孙桥, 杜磊, 等. GUM与基于观测方程的测量不确定度评估 ［J］. 计量学报, 2017, 38 (5): 656-660.
Hu H B, Sun Q, Du L, et al.GUM and analysis of measurement uncertainty evaluation using observation eq-uation ［J］. Acta Metrologica Sinica, 2017, 38 (5): 656-660.
［4］范巧成, 匡荣, 邢成岗, 等. 试论测量不确定度与误差理论的关系 ［J］. 计量学报, 2017, 38 (3): 380-384.
Fan Q C, Kuang R, Xing C G, et al.On the relationship between measurement uncertainty and error theory ［J］. Acta Metrologica Sinica, 2017, 38 (3): 380-384.
［5］余学锋, 于杰, 王柯, 等. 基于证据理论的测量不确定度评定与分析 ［J］. 计量学报, 2017, 38 (2): 252-256.
Yu X F, Yu J, Wang K, et al.Evaluating and analyzing measurement uncertainty based on the theory of evidence ［J］. Acta Metrologica Sinica, 2017, 38 (2): 252-256.
［6］叶德培. 测量不确定度理解评定与应用［M］. 北京:中国质检出版社,2013.
［7］GB/T 5510—2011 粮油检验 粮食、油料脂肪酸值测定［S］.
［8］GB/T 1355—1986 小麦粉［S］.
［9］GB/T 8607—1988 高筋小麦粉［S］.
［10］GB/T 8608—1988 低筋小麦粉［S］.
［11］JJF 1059.1—2012 测量不确定度评定与表示［S］.
［12］GB 5009.3—2016 食品安全国家标准 食品中水分的测定［S］.
［13］GB/T 5491—1985 粮食、油料检验扦样、分样法［S］.
［14］JJG 196—2006 中华人民共和国国家计量检定规程常用玻璃量器［S］.
［15］国家粮食局人事司 组织编写.粮油质量检验员(第三版)［M］. 北京:中国轻工业出版社,2014.
［16］曹海荣,薛晓康,李晓宇. UPLC-MS/MS法测定化妆品中丙烯酰胺的不确定度评定［J］. 计量学报, 2021, 42(8): 1101-1109.
Cao H R, Xie X K, Li X Y. Uncertainty Evaluation in Determination of Acrylamide Residues in Cosmetics by UPLC-MS/MS［J］. Acta Metrologica Sinica, 2021, 42(8): 1101-1109.
2021, Vol. 42 
