| 引用本文： |
-
韦永先,韦敢,覃智.氢化物原子荧光光度法测定大米中的总砷含量[J].广西科学,2011,18(4):361-363. [点击复制]
- WEI Yong-xian,WEI Gan,QIN Zhi.Determination of Total Arsenic in Rice by Hydride Atomic Fluorescence Spectrophotometry[J].Guangxi Sciences,2011,18(4):361-363. [点击复制]
|
|
| 摘要: |
| 以强氧化剂硝酸+高氯酸(4:1)湿法消解样品,使用氢化物原子荧光光度法测定大米中的总砷含量,并对仪器的工作条件进行了优化。结果砷浓度0~10μg·L-1标准曲线的线性方程为If=361.037C+30.859,相关系数0.9999,精密度0.8%,检出限0.0058μg·L-1,回收率为95.0%~110.0%。该方法操作简便快速,精密度、准确度、灵敏度均能满足分析要求。 |
| 关键词: 砷 大米 原子荧光光度法 |
| DOI： |
| 投稿时间：2011-05-07修订日期：2011-08-26 |
| 基金项目: |
|
| Determination of Total Arsenic in Rice by Hydride Atomic Fluorescence Spectrophotometry |
|
WEI Yong-xian, WEI Gan, QIN Zhi
|
| (Hechi Products Quality Supervision and Inspection Institute, Hechi, Guangxi, 547000, China) |
| Abstract: |
| By wet digestion samples with strong oxidizer nitrate and perchlorate (4:1), the total arsenic in rice was determined by hydride atomic fluorescence spectrophotometry, and the instrument conditions were optimized.The linear equation of arsenic standard curve within the concentration of 0~10μg·L-1 was If=361.037C+30.859.The correlation coefficient was 0.9999, the accuracy was 0.8%, the detection limit was 0.0058μg·L-1, and the recovery was 95.0%~110.0%.The method is simple and convenient, and its precision, accuracy, sensitivity can meet the analytical requirements. |
| Key words: arsenic rice atomic fluorescence spectrophotometry |
