Determination of Ni~(2+) in Waters with Sodium Polyacrylate as a Binding Phase in Diffusive Gradients in Thin-films |
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| Authors: | CHEN Hong DONG Jia NIU Yong-xin SUN Ting |
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| Institution: | CHEN Hong1,2,DONG Jia1,NIU Yong-xin2 and SUN Ting1 1.Department of Chemistry,Northeastern University,Shenyang 110004,P.R.China,2.Department of Applied Chemistry,Liaoning Petrochemical Vocational Technology College,Jinzhou 121001 P.R.China |
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| Abstract: | An aqueous solution containing sodium polyacrylate(PAAS) was used in diffusive gradient in thin-films technique(DGT) to measure DGT-labile Ni2+ concentrations.The DGT devices(PAAS DGT) were validated in four types of solutions,including synthetic river water containing metal ions with complexing EDTA or that without complexing EDTA,natural river water(Ling River,Jinzhou,China) spiked with Ni2+,and an industrial wastewater (Jinzhou,China).Results show that only free metal ions were measured by PAAS DGT,recov... |
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| Keywords: | Diffusive gradient in thin-film Sodium polyacrylate Binding agent Ni2 |
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