Citation: Zhu Yaping, Chen Hong, Zhang Han, Liu Yang, Zhang Yu, Liu Xu. Determination of Cd²⁺ in Water by the Diffusive Gradients in Thin-Films Technique Combined with Atomic Absorption Spectrometry[J]. Chemistry, ;2017, 80(1): 112-115. shu

Determination of Cd²⁺ in Water by the Diffusive Gradients in Thin-Films Technique Combined with Atomic Absorption Spectrometry

College of Chemistry and Chemical Engineering, Bohai University, Jinzhou, 121013

Corresponding author: Chen Hong, redastar@163.com
Received Date: 6 May 2016
Accepted Date: 30 July 2016

Figures(3)

Cd²⁺ in water was pre-concentrated by the diffusive gradients in thin-films (DGT) technique with sodium alginate (SA) as binding phase (SA DGT) and measured by atomic absorption spectrometry (ASS). The recoveries of Cd²⁺ in the synthetic solutions measured by the DGT-ASS method were 95.6%~102.7%, with RSD 1.5%~3.1%. The DGT-labile fractions of Cd²⁺ in a river and a lake were 22.46% and 15.19%, respectively. The enrichment factor of Cd²⁺ pre-concentrated by SA DGT was 20 (deployment time 48h), and the detection limit of the analytical method can be significantly reduced. Therefore, the DGT-AAS method can be used to measure trace Cd²⁺ in water.
- Cadmium ion,
- Diffusive gradients in thin-films,
- Atomic absorption spectrometry,
- Sodium alginate
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Determination of Cd2+ in Water by the Diffusive Gradients in Thin-Films Technique Combined with Atomic Absorption Spectrometry

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通讯作者: 陈斌, bchen63@163.com

Determination of Cd²⁺ in Water by the Diffusive Gradients in Thin-Films Technique Combined with Atomic Absorption Spectrometry