| GFAAS法和ICP-MS法测定水产品中铅含量的不确定度评定 |
| |
| 引用本文： | TAN Xiu-hui,YANG Hong-sheng,REN Di,CHEN Feng-wei,LIU Chang,LI Jia-jia. GFAAS法和ICP-MS法测定水产品中铅含量的不确定度评定[J]. 食品研究与开发, 2020, 41(7): 182-187 |
| |
| 作者姓名： | TAN Xiu-hui YANG Hong-sheng REN Di CHEN Feng-wei LIU Chang LI Jia-jia |
| |
| 作者单位： | 江苏省水产质量检测中心，江苏南京210017；江苏省淡水水产研究所，江苏南京210017；农业农村部渔业产品质量监督检验测试中心（南京），江苏南京210017 |
| |
| 基金项目： | 中国渔业协会水产品质量安全保障标准体系建设项目；江苏省渔业科技类项目（D2017-2-4） |
| |
| 摘 要： | 分别采用石墨炉原子吸收法(graphite furnace atomic absorption spectrometry,GFAAS)和电感耦合等离子体质谱法(inductively coupled plasma mass spectrometry,ICP-MS)测定质控样品中铅含量,分析不确定度的主要来源,建立水产品中铅测定的不确定度评定的数学模型,分别计算两种方法的各不确定度分量,结果表明:不确定度主要来源于标准曲线拟合、测量结果的重复性、方法回收率、标准溶液配制,GFAAS法测定铅含量的扩展不确定度高于ICP-MS法,两种方法的不确定度分别为7.70、4.39μg/kg,k=2。
|
| 关 键 词： | 不确定度 铅 石墨炉原子吸收光谱法 电感耦合等离子体质谱法 水产品 |
| 收稿时间： | 2019-04-26 |
Uncertainty Evaluation for Determination of Lead in Aquatic Products by GFAAS and ICP-MS |
| |
| TAN Xiu-hui,YANG Hong-sheng,REN Di,CHEN Feng-wei,LIU Chang,LI Jia-jia. Uncertainty Evaluation for Determination of Lead in Aquatic Products by GFAAS and ICP-MS[J]. Food Research and Developent, 2020, 41(7): 182-187 |
| |
| Authors: | TAN Xiu-hui YANG Hong-sheng REN Di CHEN Feng-wei LIU Chang LI Jia-jia |
| |
| Affiliation: | (Aquatic Products Analysis and Testing Center of Jiangsu Province,Nanjing 210017,Jiangsu,China;Freshwater Fishery Research Institute of Jiangsu Province,Nanjing 210017,Jiangsu,China;Fishery Products Quality Supervision and Testing Center(Nanjing),Ministry of Agriculture and Rural Affairs of the People's Republic of China,Nanjing 210017,Jiangsu,China) |
| |
| Abstract: | The content of lead in quality control material was determined by graphite furnace atomic absorption spectrometry(GFAAS) and inductively coupled plasma-mass spectrometry(ICP-MS),respectively. The sources of determination uncertainty were analyzed,a mathematical model of uncertainty evaluation for the determination of lead in aquatic products by was established,and each component of uncertainty of the two analytical methods was quantified. The major uncertainty sources were from variability of calibration curve,measurement repeatability,method recovery and standard solution preparation. The expanded uncertainty of for determination of lead in aquatic products by GFAAS was higher than that of ICP-MS,which was 7.70 and4.39 μg/kg(k=2)respectively. |
| |
| Keywords: | uncertainty lead graphite furnace atomic absorption spectrometry(GFAAS) inductively coupled plasma mass spectrometry(ICP-MS) aquatic products |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《食品研究与开发》浏览原始摘要信息 |
|
点击此处可从《食品研究与开发》下载全文 |
|
