火焰原子吸收光谱法测定葡萄酒中铁的不确定度评定

Uncertainty evaluation for the determination of iron in grape wine by atomic absorption spectrometry

中文关键词:  不确定度  火焰原子吸收光谱法  葡萄酒  铁

英文关键词:uncertainty  atomic absorption spectrometry  grape wine  iron

中文摘要:

      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。

英文摘要:

      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.