| 在线富集流动注射——火焰原子吸收法测定地面水中痕量CU,Zn,Pb,Cd |
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| 引用本文： | 齐文启,刘京.在线富集流动注射——火焰原子吸收法测定地面水中痕量CU,Zn,Pb,Cd[J].干旱环境监测,1992,6(4):202-204,208. |
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| 作者姓名： | 齐文启 刘京 |
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| 作者单位： | 中国环境监测总站 北京
(齐文启，刘京)，中国环境监测总站 北京(庄利) |
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| 摘 要： | 利用NP-多胺基磷酸树脂作为浓缩柱,结合流动注射技术,对地面水中痕量的Cu、Zn、Pb、 Cd进行富集,用火焰原子吸收法进行测定,对Cu、Zn、Pb、Cd四种常测重金属元素,本方法的变异系数分别为 2.0％、 3.6％、2.1％和 4.6％。富集倍率可以达到两个数量级,接近石墨炉原子吸收法的灵敏度,有较好的精密度。
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| 关 键 词： | 富集 地面水 原子吸收 分光光度法 |
DETERMINATION OF TRACE Cu, Zn, Pb AND Cd OF SURFACE WATER BY ON-LINE CONCENTRATION FLOW INJECTION AND FLAME ATOM ABSORPTION |
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| Qi Wenqi,Liu Jiang.DETERMINATION OF TRACE Cu, Zn, Pb AND Cd OF SURFACE WATER BY ON-LINE CONCENTRATION FLOW INJECTION AND FLAME ATOM ABSORPTION[J].Arid Environmental Monitoring,1992,6(4):202-204,208. |
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| Authors: | Qi Wenqi Liu Jiang |
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| Abstract: | The Trace Cu, Zn, Pb and Cd of surface wat-er was concentrated by a new kind of resin as well as on-line flow injection and determinted by flam atom absorption spectrometry, The coefficients of variation of Cu, Zn, Pb and Cd were 2.0%, 3.6%, 2.1% and 4.6% respectively. The concentration rate can approach the sensitivity of graphite atom absorption. |
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| Keywords: | On-line concentration Flow injection Surface water Flame atom absorption |
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