Sodium polyacrylate as a binding agent in diffusive gradients in thin-films technique for the measurement of Cu2+ and Cd2+ in waters

Fan, Hong-Tao; Sun, Ting; Li, Weijia; Sui, Dianpeng; Jin, Shuang; Lian, Xiaojing

doi:10.1016/j.talanta.2009.04.049

Cited by 32 publications

(11 citation statements)

References 25 publications

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“…Binding layer is the most important part of DGT technique. Many kinds of sorbent were developed as the binding layer, such as Chelex 100 for 24 elements [9], ferrihydrite for 6 oxoanions [10,11], Sodium polyacrylate and polymer-bound Schiff base for Cu 2+ and Cd 2+ [12,13], molecularly imprinted polymer for 4-chlorophenol [8], polyquaternary ammonium salt for phosphorus [14], and so on. However, there has been little focus on DGT-measurement for nitrogen nutrition (ammonium).…”

Section: Introductionmentioning

confidence: 99%

Sampling of ammonium ion in water samples by using the diffusive-gradients-in-thin-films technique (DGT) and a zeolite based binding phase

et al. 2015

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We have investigated the possibility of sampling ammonium ion using the diffusive-gradients-in-thin-films technique (DGT) by introducing a novel binding agent that is based on micro-sized zeolite. The performance of zeolite-DGT was characterized by measurement of the following parameters: (1) the diffusion coefficient of ammonium ion in hydrogel; (2) the adsorption rate of ammonium ion by the zeolite binding gel; (3) the elution efficiency, and (4) the effects of pH, ionic strength and interfering ions on DGT. The method was validated by studying the uptake of ammonium ion from in freshwaters by zeolite gels which was found to be fast enough to meet the requirements of DGT. The concentrations determined via DGT agreed well with the concentrations determined in bulk solutions. Sampling of ammonium ion using zeolite-DGT was consistent over the pH 3 to 8 range and the 0.001 to 10 mM ionic strength range. The method also performs predictably in natural waters containing various metal ions. The technique is considered to be a viable passive tool for sampling ammonium from aqueous solutions.

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Section: Introductionmentioning

confidence: 99%

Sampling of ammonium ion in water samples by using the diffusive-gradients-in-thin-films technique (DGT) and a zeolite based binding phase

et al. 2015

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“…As compared with solid binding phase DGT, liquid binding phase DGT provides excellent contact between the polymer solution and diffusive layer, overcoming fragility and swelling problems associated with solid gel. In addition, liquid binding phase DGT require simpler analytical procedures which directly measure analyte concentrations from polymer solution without complex elution steps (Chen et al 2011;Fan et al 2009b). However, the measurement using this type of DGT cannot reflect the spatial change of the analyte in environmental medium, due to that the binding agent is mobile in the binding solution.…”

Section: Liquid Binding Phase Devicementioning

confidence: 99%

“…The use of poly (4-styrenesulfonate) (PSS) and sodium polyacrylate (PA) as the liquid binding phase for DGT, have been developed for the measurement of Cu and Cd (Fan et al 2009b;Li et al 2003), but PSS DGT is not suitable for long-term deployment under high ionic strength condition (Li et al 2003(Li et al , 2005b. Several metals (Cu, Cd, Co and Ni) have also been measured simultaneously using PSS-E6 and PSS-7E4 DGTs (Chen et al 2012b), respectively.…”

Section: Liquid Binding Agentsmentioning

confidence: 99%

Diffusive gradients in thin films: devices, materials and applications

Ding

Yang

et al. 2018

Environ Chem Lett

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HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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“…0.020 M poly (4styrenesulfonate) solution [8], 0.0030 M sodium polyacrylate (PAAS) solution [9], and 0.030 M polyvinyl alcohol solution [10]) as the binding agent, has been developed with excellent contact between the two layers due to homogeneous and mobile characteristics of the liquid binding agent and better reproducibility. In addition, the direct measurements of metal concentrations in the polymer aqueous solution increases accuracy and precision without elution steps [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…The validation of PAAS DGT for the sampling and measurement of Sb(III) was studied. The influence of a range of pH (3)(4)(5)(6)(7)(8)(9)(10)(11) and electrolyte concentrations (0.0001-0.7 M as NaNO3) on binding capacities of PAAS DGT were also investigated.…”

Section: Introductionmentioning

confidence: 99%

The measurement of Sb(III) by diffusive gradients in thin-films with sodium polyacrylate solution as the binding agent in waters

Fan

Dan-dan

2011

2011 International Symposium on Water Resource and Environmental Protection

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The measurement of Sb(III) by diffusive gradients in thin-films (DGT) using a 0.0030 M solution of sodium polyacrylate (PAAS) as the binding agent with the modified DGT devices, PAAS DGT, had been systemically investigated. The capacity of PAAS DGT for Sb(III) was 22.52 ȝg·mL-1. The PAAS DGT had a substantial binding capacity at pH 4-9 and concentrations of competitive Na+ up to 0.7 M. The Sb(III) concentrations were determined accurately and simultaneously in synthetic solution by PAAS DGT (Recovery = 92.26 %, r2 = 0.9913, RSD% = 2.86). It has been demonstrated in this study that the PAAS DGT can be used for the sampling and measurement of Sb(III) in waters .

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Sodium polyacrylate as a binding agent in diffusive gradients in thin-films technique for the measurement of Cu2+ and Cd2+ in waters

Cited by 32 publications

References 25 publications

Sampling of ammonium ion in water samples by using the diffusive-gradients-in-thin-films technique (DGT) and a zeolite based binding phase

Sampling of ammonium ion in water samples by using the diffusive-gradients-in-thin-films technique (DGT) and a zeolite based binding phase

Diffusive gradients in thin films: devices, materials and applications

The measurement of Sb(III) by diffusive gradients in thin-films with sodium polyacrylate solution as the binding agent in waters

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