摘要
目的评定火焰原子吸收法测定葡萄酒中铁的不确定度。方法根据GB/T 15038-2006《葡萄酒、果酒通用分析方法》,建立测定葡萄酒中铁含量的不确定度的数学模型。结果该方法测定葡萄酒中铁含量为3.806 mg/L的扩展不确定度为0.376 mg/L。结论不确定度主要来源为标准溶液配制和工作曲线拟合。
Objective To evaluate the uncertainty for the determination of iron in grape wine by atomic absorption spectrometry. Methods According to GB/T 15038-2006 General Analysis Method for Wine and Fruit Wine, a uncertainty mathematical model for of the determination of iron content in wine was established. Results When the iron content in grape wine was 3.806 mg/L, the expanded uncertainty of iron content in grape wine was 0.376 mg/L. Conclusion The main sources of uncertainty are caused by preparing standard solution and drawing the working curve.
作者
彭珍华
白祥
牛之瑞
王吉祥
胡赠彬
谭建林
PENG Zhen-Hua;BAI Xiang;NIU Zhi-Rui;WANG Ji-Xiang;HU Zeng-Bin;TAN Jian-Lin(Yunnan Institute of Product Quality Supervision&Inspection,Nationnal Agricultural and Sideline Products Quity Supervision and Inspection Center,Kunming 650223,China)
出处
《食品安全质量检测学报》
CAS
2020年第15期5052-5055,共4页
Journal of Food Safety and Quality
