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| 改性沸石分离富集-火焰原子吸收光谱法测定长江水中镉 |
| Determ ination of Cadm ium in the Yangtze River Water Samples by Flame Atom ic Absorption Spectrometry after Separation and Enrichment with M odified Zeolite |
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| DOI： |
| 中文关键词: 镉 改性沸石 火焰原子吸收光谱法 水质 长江 |
| 英文关键词: Cadmium Modified zeolite Flame atomic absorption spectrophotometry Waterquality Yangtze River |
| 基金项目: |
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| 中文摘要: |
| 采用改性沸石分离富集-火焰原子吸收光谱法测定长江水中微量镉, 优化了富集和洗脱条件 , 讨论了干扰离子的影响 。方法在 0 μ g ～ 4.00 μ g 范围内线性良好, 检出限为 0.214 μ g/L, 长江水平行测定的 RSD 为 1.8% , 加标回收率为 9.0% ～ 104% 。 |
| 英文摘要: |
| Trace cadmium pre-concentrated with modified zeolitein the Yangtze River watersamples were determined by flame atomic absorption spectrometry. By optimizingprocessofenrichmentand elution and eliminatinginfluenceofinterferenceions,the resultsshowed goodlinearity ranging from 0 μ gto 4.00 μ g; detectionimits0.214 μ g/L; RSD ofparallel Yangtze Riverwatersamples1.8%; and spiked recoveriesbetween 99.0%and104%. |
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