| 全自动石墨加热消解-石墨炉原子吸收法测定麦苗粉中铅含量的不确定度评定 |
| |
| 引用本文： | 翟硕莉,张秀丰,孙世卫. 全自动石墨加热消解-石墨炉原子吸收法测定麦苗粉中铅含量的不确定度评定[J]. 食品安全质量检测学报, 2021, 12(4): 1502-1507 |
| |
| 作者姓名： | 翟硕莉 张秀丰 孙世卫 |
| |
| 作者单位： | 河北省衡水市衡水学院生命科学系 河北衡水,衡水海关 |
| |
| 基金项目： | 衡水学院校级课题(2020ZR29) |
| |
| 摘 要： | 目的 评定全自动石墨加热消解-石墨炉原子吸收法测定麦苗粉中铅含量的不确定度.方法 麦苗粉样品经全自动石墨加热消解后,石墨炉原子吸收法测定,外标法定量,根据建立的数据模型对每个不确定度分量进行评定,最终得出对合成不确定度的贡献度.结果 置信概率为95％,取包含因子k=2,湿法消解-石墨炉原子吸收法测定麦苗粉中铅含量结果报...
|
| 关 键 词： | 石墨加热消解 石墨炉原子吸收法 铅 不确定度 |
| 收稿时间： | 2020-08-02 |
| 修稿时间： | 2020-12-08 |
Evaluation of uncertainty for determination of lead in young wheat leaves powder by automatic graphite digestion instrument-graphite furnace atomic absorption spectrometry |
| |
| ZHAI Shuo-Li,ZHANG Xiu-Feng,SUN Shi-Wei. Evaluation of uncertainty for determination of lead in young wheat leaves powder by automatic graphite digestion instrument-graphite furnace atomic absorption spectrometry[J]. Journal of Food Safety & Quality, 2021, 12(4): 1502-1507 |
| |
| Authors: | ZHAI Shuo-Li ZHANG Xiu-Feng SUN Shi-Wei |
| |
| Affiliation: | Department of Biology Hengshui University,Hengshui,hebei,Hengshui Customs |
| |
| Abstract: | The content of lead in young wheat leaves powder was determined by Automatic graphite digestion-GFAAS,the uncertainty evaluation was established. According to the established data model, each uncertainty component was evaluated, and the contribution degree of uncertainty was determined by comparison. Results showed that the content of lead in young wheat leaves powder was(0.17±0.01)mg/kg with P=95% k=2. The uncertainty of lead content measurement is mainly caused by recovery rate, curve fitting and curve preparation. |
| |
| Keywords: | automatic graphite digestion GFAAS lead uncertainty |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《食品安全质量检测学报》浏览原始摘要信息 |
|
点击此处可从《食品安全质量检测学报》下载全文 |
