Magnetic solid-phase extraction using sulfur-containing functional magnetic polymer for high-performance liquid chromatography-inductively coupled plasma-mass spectrometric speciation of mercury in environmental samples

He, Yifeng; He, Man; Nan, Kai; Cao, Rongkai; Chen, Beibei; Hu, Bin

doi:10.1016/j.chroma.2019.02.050

Cited by 60 publications

(20 citation statements)

References 44 publications

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“…1A. The synthesis of Fe 3 O 4 @SiO 2 @KH570 MNPs was carried out referring to previous method [23,28], and the details are included in the Supporting Information. One gram of above‐prepared Fe 3 O 4 @SiO 2 @KH570 was completely dispersed into 70 mL of DMF and 2 mL of vinyl phosphate.…”

Section: Methodsmentioning

confidence: 99%

Ti (IV) modified vinyl phosphate magnetic nanoparticles for simultaneous preconcentration of multiple arsenic species from chicken samples followed by HPLC‐ICP‐MS analysis

Chen

et al. 2021

Electrophoresis

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Ti (IV)‐modified vinyl phosphate magnetic nanoparticles (Fe3O4@SiO2@KH570‐PO4‐Ti (IV)) was prepared for simultaneous extraction of multiple arsenic species, followed by high performance liquid chromatography (HPLC)– inductively coupled plasma mass spectrometry (ICP‐MS) analysis. Inorganic arsenic (iAs), dimethyl arsenic acid (DMA), monomethyl arsenic acid (MMA), p‐amino phenyl arsenic acid (p‐ASA), 4‐hdroxyphenylarsenic acid (4‐OH), phenyl arsenic acid (PAA), and 3‐nitro‐4‐hydroxyphenylarsenic acid (ROX) were investigated as interest analytes. It was found that they were quantitatively adsorbed on Fe3O4@SiO2@KH570‐PO4‐Ti (IV) at pH 5, and desorbed completely with 0.1 mol/L sodium hydroxide solution. Enrichment factor of 100‐fold was obtained by consuming 100 mL sample solution. Under the optimal conditions, the method combining MSPE with HPLC‐ICP‐MS presented a linear range of 1–5000 ng/L for seven arsenic species. The limits of detection were 0.39, 0.60, 0.23, 1.85, 0.54, 0.48, and 0.84 ng/L for DMA, MMA, p‐ASA, iAs, 4‐OH, PAA, ROX, with the relative standard deviations (c = 10 ng/L, n = 7) of 3.6, 3.9, 5.5, 12.4, 6.1, 5.8, 5.0, respectively. The accuracy of the method was validated by analyzing BCR 627 Tuna fish. The application potential of the method was further evaluated by chicken muscle and liver samples. No target arsenic species were detected in these samples, and good recoveries (80.6–123%) were obtained for the spiked samples at low, medium, and high concentration levels.

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Section: Methodsmentioning

confidence: 99%

Ti (IV) modified vinyl phosphate magnetic nanoparticles for simultaneous preconcentration of multiple arsenic species from chicken samples followed by HPLC‐ICP‐MS analysis

Chen

et al. 2021

Electrophoresis

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“…MSPE has also been applied for Hg analysis, coupled to HPLC-ICP-MS. In this context, thioether and thiol-functionalized MNPs have been used for the preconcentration of Hg(II), MeHg, and PhHg in water and soil samples prior to their separation and quantification [94]. The results showed that 200 mL of aqueous sample could be quantitatively treated in 5 min and that the analytes could be eluted within 2 min with 0.5 mL of 0.1 mol L −1 HNO 3 and 4% thiocarbamide.…”

Section: Mercurymentioning

confidence: 99%

Elemental Speciation Analysis in Environmental Studies: Latest Trends and Ecological Impact

Llaver

Fiorentini

Oviedo

et al. 2021

IJERPH

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Speciation analysis is a key aspect of modern analytical chemistry, as the toxicity, environmental mobility, and bioavailability of elemental analytes are known to depend strongly on an element’s chemical species. Henceforth, great efforts have been made in recent years to develop methods that allow not only the determination of elements as a whole, but also each of its separate species. Environmental analytical chemistry has not ignored this trend, and this review aims to summarize the latest methods and techniques developed with this purpose. From the perspective of each relevant element and highlighting the importance of their speciation analysis, different sample treatment methods are introduced and described, with the spotlight on the use of modern nanomaterials and novel solvents in solid phase and liquid-liquid microextractions. In addition, an in-depth discussion of instrumental techniques aimed both at the separation and quantification of metal and metalloid species is presented, ranging from chromatographic separations to electro-chemical speciation analysis. Special emphasis is made throughout this work on the greenness of these developments, considering their alignment with the precepts of the Green Chemistry concept and critically reviewing their environmental impact.

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“…The most common instrumental techniques for Hg 2? detection include high performance liquid chromatography (HPLC) [6], capillary electrophoresis (CE) [7], atomic fluorescence spectrometry (AFS) based on cold vapor protocol [8] and electrochemical methods [9]. However, some of these techniques are laborious, time consuming, require highly skilled operators and rely upon costly instruments to deliver precise and accurate results while others are less sensitive.…”

Section: Introductionmentioning

confidence: 99%

Trace Level Colorimetric Hg2+ Sensor Driven by Citrus japonica Leaf Extract Derived Silver Nanoparticles: Green Synthesis and Application

et al. 2021

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In this report we demonstrate the use of Citrus japonica (CJ) leaf extract for the first time as biological liquid to work as capping as well as reducing agent for synthesizing extremely stable silver nanoparticles (AgNPs) from its precursor silver salt. Different parameters such as pH, speed of reaction, silver salt concentrations and leaf extract were optimized for the formation of CJ-AgNPs. CJ-AgNPs were then characterized through techniques like Ultra-violet visible (UV-Vis) spectroscopy, Fourier transform infra-red (FTIR) spectroscopy, X-ray diffraction (XRD), atomic force microscopy (AFM), Zeta-potential analysis (ZPA) and dynamic light scattering (DLS). As-formed CJ-AgNPs were verified as highly sensitive, extremely selective, stable, economical, eco-friendly and rapidly responsive colorimetric sensor for Hg 2? detection based on color change in solution from yellow to brownish. The dynamic range of developed sensor worked linearly in the range of 0.3-7.3 lM with R 2 value of 0.999 and limit of (LOD) and limit of quantification (LOQ) as 0.09 lM and 0.30 lM respectively. The sensor demonstrated negligible interference under the influence of ions like Mg 2? , Zn 2? , Cu 2? , Co 2? , Pb 2? , Cd 2? and Fe 2? and corresponding anions. The developed sensor was successfully applied to detect Hg 2? at low level in some real water samples.

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Magnetic solid-phase extraction using sulfur-containing functional magnetic polymer for high-performance liquid chromatography-inductively coupled plasma-mass spectrometric speciation of mercury in environmental samples

Cited by 60 publications

References 44 publications

Ti (IV) modified vinyl phosphate magnetic nanoparticles for simultaneous preconcentration of multiple arsenic species from chicken samples followed by HPLC‐ICP‐MS analysis

Ti (IV) modified vinyl phosphate magnetic nanoparticles for simultaneous preconcentration of multiple arsenic species from chicken samples followed by HPLC‐ICP‐MS analysis

Elemental Speciation Analysis in Environmental Studies: Latest Trends and Ecological Impact

Trace Level Colorimetric Hg2+ Sensor Driven by Citrus japonica Leaf Extract Derived Silver Nanoparticles: Green Synthesis and Application

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