南通大学学报（自然科学版）2018，Vol.17Issue(4)：66-70,5.
火焰原子吸收分光光度法测定地表水中铜含量的不确定度评定
Evaluation of Uncertainty in Determination of Copper in Surface Water by Flame Atomic Absorption Spectrometry
张建 1李春建1
作者信息
- 1. 南通大学 分析测试中心, 江苏 南通 226019
- 折叠
摘要
Abstract
According to GB 7475—87 ″ Determination of Copper, Zinc, Lead and Cadmium in Water Quality by Flame Atomic Absorption Spectrophotometry″, a mathematical model for determination of surface water samples is proposed. According to the requirements of JJF 1059.1—2012 ″Evaluation and Representation of Uncertainty in Measurement″, the uncertainty components in the measurement process were calculated, and the extended uncertainty was finally obtained. The copper content in surface water samples was 1.53 mg/L, and the expanded uncertainty was 0.035 mg/L, including factor k = 2. The measurement results of copper content in surface water samples should be reported as (1.53±0.036) mg/L, k = 2. The uncertainty of determination of copper in surface water samples by flame atomic absorption spectrophotometry mainly comes from standard curve fitting, preparation of standard solution and repeated measurement of samples.关键词
不确定度/火焰原子吸收/分光光度法/地表水/铜Key words
uncertainty/flame atomic absorption/spectrometry/surface water/copper分类
化学化工引用本文复制引用
张建,李春建..火焰原子吸收分光光度法测定地表水中铜含量的不确定度评定[J].南通大学学报（自然科学版）,2018,17(4):66-70,5.
