ArticleMikrochimica acta2018
Graphene oxide as a stationary phase for speciation of inorganic and organic species of mercury, arsenic and selenium using HPLC with ICP-MS detection.
Article in Mikrochimica acta, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Conventional Chromatographic Techniques and Biosensors for Mercury Speciation in Seafood: A Systematic Review.Foods (Basel, Switzerland) · 2026Review
- Synthesis of a novel magnetic nanomaterial for the development of a multielemental speciation method of lead, mercury, and vanadium via HPLC-ICP MS.Mikrochimica acta · 2023Article
- Hg(II) immobilization and detection using gel formation with tetra-(4-pyridylphenyl)ethylene and an aggregation-induced luminescence effect.Scientific reports · 2023Article
- Strategies for mercury speciation with single and multi-element approaches by HPLC-ICP-MS.Frontiers in chemistry · 2022Review
- μ-Thin-layer chromatography coupled with laser ablation-inductively coupled plasma-mass spectrometry using tin(II)-imprinted polymer nanoparticles as a stationary phase for speciation of tin.Mikrochimica acta · 2020Article
- Recent Advances of Graphene-Based Strategies for Arsenic Remediation.Frontiers in chemistry · 2020Review
- Maltodextrin-modified graphene oxide for improved enantiomeric separation of six basic chiral drugs by open-tubular capillary electrochromatography.Mikrochimica acta · 2019Article
- Magnetic metal-organic framework composites for dual-column solid-phase microextraction combined with ICP-MS for speciation of trace levels of arsenic.Mikrochimica acta · 2019Article
- A Schiff base modified graphene oxide film for anodic stripping voltammetric determination of arsenite.Mikrochimica acta · 2019Article
- A New Plant Indicator (Journal of analytical methods in chemistry · 2019Article
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Authors and funding
4 authors.
Funding
Abstract
This work demonstrates the power of graphene and graphene oxide (GO) as stationary phases for high performance liquid chromatography (HPLC) based elemental speciation analysis combined with detection by inductively coupled plasma mass spectrometry (ICP-MS). Inorganic mercuric and organomercuric compounds coordinate with 2-thiosalicylic acid (TSA) to form Hg-TSA complexes. These complexes are retained by GO owing to its strong π electron stacking capability for TSA. Separation of the four mercury species tested was achieved within 12 min with resolutions of 1.8-3.4. Similarly, inorganic anionic species of arsenic and selenium, and organoarsenicals are electrostatically attracted by aromatic quaternary ammonium cations in the mobile phases. Organoarsenicals also can be separated by using long alkyl quaternary ammonium compounds. Aromatic quaternary ammonium compounds possess particularly high affinity to GO because of strong π interaction. This leads to effective retention of the As/Se anions. A comparison between graphene and GO as stationary phases for HPLC separation of mercury and arsenic species demonstrates negligible difference. Arsenic species are separated within 32 min, and selenium species are achieved within 20 min. The mobile phase also allows efficient separation of iodate, iodide, bromate, bromide, chromic acid and chromate. Analysis of a certified fish tissue by HPLC-ICP-MS using the GO@SiO
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