| 用全热解石墨管和混合基体改进剂测定环境样品中锶 |
| |
| 引用本文： | 孙涤君 马怡载. 用全热解石墨管和混合基体改进剂测定环境样品中锶[J]. 环境化学, 1995, 14(6): 524-530 |
| |
| 作者姓名： | 孙涤君 马怡载 |
| |
| 作者单位： | 中国科学院生态环境研究中心!北京100085(孙涤君，王东红)，国家环境分析测试中心!北京100012(马怡载) |
| |
| 基金项目： | 国家自然科学基金资助课题 |
| |
| 摘 要： | 本文使用含锶空白纸、灵敏度高、记忆效应小的全热解石墨管测定环境样中的锶，提出一种新混合改进剂（钯加酒石酸），能有效消除高氯酸、硝酸以及各种基体的干扰，比较了各原子化温度时理论和实验特征量，使全热解石墨管有可能用于石墨炉原子吸收法测定各种环境样品中的锶，准确度和精度优于５％。
|
| 关 键 词： | 锶 改进剂 全热解石墨管 原子吸收法 环境监测 |
THE DETERMINATION OF ENVIRONMENTAL STRONTIUM USING A TOTAL PYROLYTIC GRAPHITE TUBE AND PALLADIUM ADD TARTARIC ACID AS A MIXED CHEMICAL MODIFIER |
| |
| Sun Dijun Wang Donghong. THE DETERMINATION OF ENVIRONMENTAL STRONTIUM USING A TOTAL PYROLYTIC GRAPHITE TUBE AND PALLADIUM ADD TARTARIC ACID AS A MIXED CHEMICAL MODIFIER[J]. Environmental Chemistry, 1995, 14(6): 524-530 |
| |
| Authors: | Sun Dijun Wang Donghong |
| |
| Abstract: | A total pyrolytic graphite tube of low blank, high sensitivity and low memory effect was selected for determination of strontium in environmental samples. A new mixed chemical modifier (Pd +tartaric acid) was used for elemination of matrix effect from HC1O4, HNO3 and other matrices. A comparison of experimental and calculated characteristic mass was made. This paper shows that the modern graphite furnace technique provides the possibility of Sr determination in a variety of complex matrices within 5% accuracy. |
| |
| Keywords: | strontium chemical modifier (Pd + tartaric acid) a total pyrolytic graphite tube graphite furnace atomic absorption spectrometry.strontium chemical modifier (Pd + tartaric acid) a total pyrolytic graphite tube graphite furnace atomic abso |
| 本文献已被 CNKI 维普 等数据库收录！ |
