Speciation analysis of chromium in environmental water samples from Niigata Prefecture by using ion-exchange/ICP-AES
Speciation analysis of chromium in environmental water samples from Niigata Prefecture by using ion-exchange/ICP-AES
复制标题
使用离子交换/ICP-AES 对新泻县环境水样中的铬进行形态分析
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
T. Ishizuka
中科院分区：
文献类型：
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作者：
Y. Iwasaki;N. Kano;K. Ōmori;H. Imaizumi;T. Ishizuka
研究了一种简单有效的预富集方法，用于分别测定环境水样中铬的每种形态（即Cr(III)和Cr(VI)），随后采用电感耦合等离子体 - 原子发射光谱法（ICP - AES）进行测定。该方法基于以下离子交换法。Cr(III)被阳离子交换树脂吸附，Cr(VI)被阴离子交换树脂吸附。吸附的Cr(III)和Cr(VI)分别用2 mol/dm³的盐酸（HCl）和2 mol/dm³的氯化钾（KCl）定量洗脱。在本研究中，Cr(III)的预富集因子为100，Cr(VI)的预富集因子为300，Cr(III)的检测限为0.03 μg/dm³，Cr(VI)的检测限为0.01 μg/dm³。该方法已应用于新潟县的环境水样。环境水样中Cr(III)和Cr(VI)的回收率均为94 - 98%，未检测到共存离子的干扰影响。因此，上述方法适用于环境水样。
A simple and an efficient preconcentration method for the separate determination of each species of chromium {i.e., Cr(III) and Cr(VI)} in environmental water samples has been investigated, followed by inductively coupled plasma-atomic emission spectrometry (ICP-AES). This method is based on the following ion-exchange method. Cr(III) was adsorbed on cation-exchange resin, and Cr(VI) on anion-exchange resin. The retained Cr(III) and Cr(VI) were quantitatively eluted with 2 mol dm−3 hydrochloric acid (HCl) and 2 mol dm−3 potassium chloride (KCl), respectively. The preconcentration factor was 100 for Cr(III) and 300 for Cr(VI) in this work, and the detection limits were 0.03 μg dm−3 in Cr(III) and 0.01 μg dm−3 in Cr(VI). The method has been applied to environmental water samples from Niigata Prefecture. The recoveries of Cr(III) and Cr(VI) in environmental water samples were all 94∼98%, and the effect of interference from the coexistence ion was not detected. Therefore, the above-mentioned method is applicable to environmental water samples.
影响因子：
4.1
作者：
BYRDY, FA;OLSON, LK;CARUSO, JA
通讯作者：
CARUSO, JA