On-Site Determination of Methylmercury by Coupling Solid-Phase Extraction and Voltammetry.
Paolo InaudiElio MondinoOrnella AbollinoMery MalandrinoMonica ArgenzianoLaura FavilliRoberto BoschiniAgnese GiacominoPublished in: Molecules (Basel, Switzerland) (2022)
A measurement and speciation procedure for the determination of total mercury (Hg TOT ), inorganic mercury (Hg IN ), and methylmercury (CH 3 Hg) was developed and the applicability for on-site determination was demonstrated. A simple, portable sample pretreatment procedure was optimized to extract the analytes. Home-made columns, packed with a new sorbent material called CYXAD (CYPHOS 101 modified Amberlite XAD), were used to separate the two forms of the analyte. Hg TOT and CH 3 Hg were determined by anodic stripping voltammetry (ASV), using a solid gold electrode (SGE). Two certified reference materials (BCR-463 Tuna Fish and Tuna Fish ERM-CE 464) and eight fresh fishes were analyzed. Then, the results that were obtained following the optimized portable procedure were compared with the concentrations obtained, using a direct mercury analyzer (DMA). This quantification, using the two techniques, demonstrated the good performance of the proposed method.
Keyphrases
- acute lymphoblastic leukemia
- solid phase extraction
- molecularly imprinted
- high performance liquid chromatography
- liquid chromatography tandem mass spectrometry
- fluorescent probe
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- gas chromatography mass spectrometry
- tandem mass spectrometry
- simultaneous determination
- aqueous solution
- living cells
- ultra high performance liquid chromatography
- minimally invasive
- room temperature
- gas chromatography
- healthcare
- high resolution mass spectrometry
- oxidative stress
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- tyrosine kinase
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