Passive sampler measurements of inorganic arsenic species in environmental waters: A comparison between 3-mercapto-silica, ferrihydrite, Metsorb®, zinc ferrite, and zirconium dioxide binding gels

Abstract

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Dissolved iodide in marine waters determined with Diffusive Gradients in Thin-films technique

“…7). Acceptable DGT measurements were obtained for MDGT / Mth3 = 100 ± 15 % (dashed lines in Figure 4), as in other previous DGT laboratory evaluations [19,20,39]. Whatever the weight ratio [I-] / [IO3-] tested, the AgdCl-DGT estimations were good with…”

“…The DGT sampling allows the preconcentration of the target species, leading to the improvement of their determination by chemical analysis. Nowadays, the development of DGT method permits to partially or totally access the redox speciation of the following elements: As [18][19][20], Br [21], Cr our knowledge there is no DGT method for I species.…”

Developments in the diffusive gradients in thin-films technique for the speciation of oxyanions and platinum group elements in aquatic systems

“…Total As concentrations can be obtained with different binding agents, e.g. ferrihydrite, Metsorb, zinc ferrite and zirconia, while As(III) can be measured selectively with 3-mercaptopropylfunctionalized silica (3MP) [43,44].…”

Functionalized Mesoporous Silicon Nanomaterials in Inorganic Soil Pollution Research: Opportunities for Soil Protection and Advanced Chemical Imaging

“…The reason why mercaptopropyl-silica have highly selective adsorption ability for As(III) is because of the strong complexation of H 3 AsO 3 by thiol (S-H) groups [ 98 ]. Gorny et al [ 99 ] also reported on the use of FMSN as the DGT-binding layer and found that the use of matrix corrected elution factors to rectify the interaction with sulfides can ameliorate the measurement of As(III) in 3-mercapto-silica (3MP)-binding gels; the concentration of As(III) recovered from the 3MP-DGT samplers reached 103 ± 7.0 and 93.8 ± 8.6% (mean ± standard deviation) of the initial As(III) concentration in seawater and freshwater, respectively [ 99 ] (Table 3 ).…”

“… Bennett et al [ 98 ] 3-mercaptopropyl-functionalized silica, ferrihydrite, Metsorb, zinc ferrite, and zirconium dioxide Total As and As(III) Sediment DGT, ICP-MS Comparison of the adsorption capacity of different binding gels and found that the use of unconventional elution factors to correct the interaction with sulfides can improve the determination of As (III) in 3-mercaptopropyl-functionalized silica binding gels. Gorny et al [ 99 ] …”