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Simultaneous measurements of cations and anions using diffusive gradients in thin films with a ZrO-Chelex mixed binding layer

Overview of attention for article published in Analytica Chimica Acta, June 2017
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Title
Simultaneous measurements of cations and anions using diffusive gradients in thin films with a ZrO-Chelex mixed binding layer
Published in
Analytica Chimica Acta, June 2017
DOI 10.1016/j.aca.2017.04.007
Pubmed ID
Authors

Yan Wang, Shiming Ding, Lei Shi, Mengdan Gong, Shiwei Xu, Chaosheng Zhang

Abstract

A new method for the simultaneous measurements of eight cations [Fe(II), Mn(II), Co(II), Ni(II), Cu(II), Zn(II), Cd(II), and Pb(II)] and eight oxyanions [P(V), V(V), Cr(VI), As(III)/As(V), Se(VI), Mo(VI), Sb(V), and W(VI)] was established in this study using the diffusive gradients in thin films (DGT) technique with an improved ZrO-Chelex binding gel. The binding kinetics of each analyte in a mixed solution indicated a rapid uptake on the ZrO-Chelex gel. The anions exhibited slower absorption rates compared to the cations, which did not affect the DGT uptake. Stable elution efficiencies for these cations and anions were obtained based on a two-step extraction procedure using 1.0 M HNO3 for elution of the cations followed by a mixed solution containing 0.2 M NaOH and 0.5 M H2O2 for elution of the anions. Simultaneous measurements of the cations and anions with the ZrO-Chelex DGT were validated in mixed solutions and found to be independent of solution pH (5-9) and ionic strength (2-3 mM to 750 mM). The capacities of the ZrO-Chelex DGT for single measurements of Fe(II), P(V), Cd(II), As(III), and As(V) were determined at 99.5, 127.6, 301.2, 33.3, and 87.4 μg cm(-2). Except for Se(VI) in seawater, accurate measurements of all of these cations and anions in natural freshwater and seawater were obtained using the ZrO-Chelex DGT. The performance of this technique for simultaneous measurements of 16 elements was also tested in sediments.

Twitter Demographics

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Mendeley readers

The data shown below were compiled from readership statistics for 31 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 31 100%

Demographic breakdown

Readers by professional status Count As %
Student > Master 9 29%
Student > Ph. D. Student 6 19%
Other 4 13%
Student > Bachelor 3 10%
Student > Postgraduate 2 6%
Other 5 16%
Unknown 2 6%
Readers by discipline Count As %
Environmental Science 8 26%
Chemistry 6 19%
Agricultural and Biological Sciences 3 10%
Biochemistry, Genetics and Molecular Biology 2 6%
Veterinary Science and Veterinary Medicine 1 3%
Other 3 10%
Unknown 8 26%

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 23 May 2017.
All research outputs
#9,387,510
of 12,237,492 outputs
Outputs from Analytica Chimica Acta
#3,389
of 4,475 outputs
Outputs of similar age
#176,576
of 269,723 outputs
Outputs of similar age from Analytica Chimica Acta
#42
of 95 outputs
Altmetric has tracked 12,237,492 research outputs across all sources so far. This one is in the 20th percentile – i.e., 20% of other outputs scored the same or lower than it.
So far Altmetric has tracked 4,475 research outputs from this source. They receive a mean Attention Score of 2.9. This one is in the 21st percentile – i.e., 21% of its peers scored the same or lower than it.
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We're also able to compare this research output to 95 others from the same source and published within six weeks on either side of this one. This one is in the 32nd percentile – i.e., 32% of its contemporaries scored the same or lower than it.