| 离子交换火焰原子吸收法测定水中Cr(Ⅲ)和Cr(Ⅵ) |
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| 引用本文： | 高文玲,鲁彬,刘新喜.离子交换火焰原子吸收法测定水中Cr(Ⅲ)和Cr(Ⅵ)[J].河北科技大学学报,1997(4). |
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| 作者姓名： | 高文玲 鲁彬 刘新喜 |
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| 作者单位： | 河北师范大学化学系 |
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| 摘 要： | 研究了在ｐＨ＝２～３的条件下，用国产００１＃强酸性阳离子交换树脂、２０１×７＃强碱性阴离子交换树脂对水中Ｃｒ（Ⅲ）和Ｃｒ（Ⅵ）进行交换吸附，在Ｎａ２ＳＯ４存在下，用火焰原子吸收法直接测定交换后溶液中的Ｃｒ（Ⅵ）和Ｃｒ（Ⅲ）。方法简便易行，快速，特征质量为０．０７２μｇ／ｍＬ，相对标准偏差为２．７％，回收率为９５％～１０６％
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| 关 键 词： | 铬 离子交换树脂 水样分析 火焰原子吸收法 |
Determination of chromium (Ⅲ) and Chromium (Ⅵ) in Water by lon exchange flame Atomic Absorption Spectrometry |
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| Abstract: | The exchange absorption of Cr (Ⅲ) and Cr (Ⅵ) in water was studied with 001 strong acidic cation and 201×7 strong basic anion exchange resin.In the presance of sodium sulfate,Cr (Ⅵ) and Cr (Ⅲ) in the filtrate were directly detected.The method is simple and rapid.The sensitivity of 0.072 uglml (1% absortion),relatire standard deviation of 2.7% and recovery rate of 95%-106% are obtained respectively. |
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| Keywords: | chromium ion exchange resin atomic absorption spectrometry |
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