This paper reviews the current research on the speciation and determination of mercury by various analytical techniques, including the atomic absorption spectrometry (AAS), voltammetry, inductively coupled plasma optical emission spectrometry (ICP-OES), ICP-mass spectrometry (MS), atomic fluorescence spectrometry (AFS), spectrophotometry, spectrofluorometry, and high performance liquid chromatography (HPLC). Approximately 96 research papers on the speciation and determination of mercury by various analytical instruments published in international journals since 2015 were reviewed. All analytical parameters, including the limits of detection, linearity range, quality assurance and control, applicability, and interfering ions, evaluated in the reviewed articles were tabulated. In this review, we found a lack of information in speciation studies of mercury in recent years. Another important conclusion from this review was that there were few studies regarding the concentration of mercury in the atmosphere.
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http://dx.doi.org/10.1155/2017/3624015 | DOI Listing |
Plant Biol (Stuttg)
January 2025
School of Life Science, National Taiwan Normal University, Taipei, Taiwan.
Island habitats provide unique opportunities to study speciation. Recent work indicates that both ex situ origination and in situ speciation contribute to island species diversity. However, clear evidence of local adaptation of endemic plant species on islands requires in-depth studies, which are scarce.
View Article and Find Full Text PDFJ Chromatogr B Analyt Technol Biomed Life Sci
January 2025
Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER) Hajipur, Bihar 844102 India. Electronic address:
An analytical quality by design-guided LC-ICP-MS method for simultaneous arsenic speciation analysis in HEK-293 cells was optimized and validated. Initially, critical method variables (CMVs) were identified to achieve the targeted critical quality attribute (CQA) of the analytical target profile (ATP). Based on knowledge and risk assessments, formic acid (X), citric acid (X), and pH (X) were studied for their effect on method responses such as resolutions (Y1, Y2) and retention time of As(V), As(III) and DMA (Y3, Y4, and Y5) using central composite design (CCD).
View Article and Find Full Text PDFACS Catal
January 2025
Department of Chemistry, University of Illinois Urbana-Champaign, Urbana, Illinois 61801, United States.
Automated, rapid electrocatalyst discovery techniques that comprehensively address the exploration of chemical spaces, characterization of catalyst robustness, reproducibility, and translation of results to (flow) electrolysis operation are needed. Responding to the growing interest in biomass valorization, we studied the glycerol electro-oxidation reaction (GEOR) on gold in alkaline media as a model reaction to demonstrate the efficacy of such methodology introduced here. Our platform combines individually addressable electrode arrays with HardPotato, a Python application programming interface for potentiostat control, to automate electrochemical experiments and data analysis operations.
View Article and Find Full Text PDFFront Microbiol
January 2025
Shanghai Engineering Center of Hadal Science and Technology, College of Marine Sciences, Shanghai Ocean University, Shanghai, China.
Strain LCG007, isolated from Lu Chao Harbor's intertidal water, phylogenetically represents a novel genus within the family Rhodobacteraceae. Metabolically, it possesses a wide array of amino acid metabolic genes that enable it to thrive on both amino acids or peptides. Also, it could hydrolyze peptides containing D-amino acids, highlighting its potential role in the cycling of refractory organic matter.
View Article and Find Full Text PDFMicrobiome
January 2025
Key Laboratory of Urban Environment and Health, Ningbo Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China.
Background: Huge phages (genome size ≥ 200 kb) have been detected in diverse habitats worldwide, infecting a variety of prokaryotes. However, their evolution and adaptation strategy in soils remain poorly understood due to the scarcity of soil-derived genomes.
Results: Here, we conduct a size-fractioned (< 0.
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