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Papers
61,005 resultsShowing papers similar to Sequential speciation analysis of heavy metals on suspended particulate matter in water using electrochemical mass spectrometry
ClearNanoplastic/metal interaction under flow conditions: an innovative coupling of microfluidic and spectrometry.
Researchers developed an innovative microfluidic-spectrometry coupling to study nanoplastic interactions with trace metals under flow conditions, investigating how oxidized surface functional groups on nanoplastics influence metal speciation and transport in natural aquatic matrices.
Coupling electrochemical and spectroscopic methods for river water dissolved organic matter characterization
Researchers combined electrochemical impedance spectroscopy with traditional light-based methods to better characterize dissolved organic matter in river water — organic compounds that interact with pollutants including microplastics. The integrated approach revealed patterns in organic matter composition that optical methods alone would miss, offering a more complete picture of water quality.
Electrical impedance spectroscopy based strategy for detecting and differentiating microplastics in water
Researchers developed a submersible electrical impedance spectroscopy approach capable of detecting and differentiating microplastics directly in biologically active aquatic environments, overcoming the labor-intensive preprocessing requirements of conventional FTIR and Raman methods.
Rapid Microfluidic Electrochemical Sensor for the Detection of Heavy Metal Ions in Water Sample
This paper reviews the development of a microfluidic electrochemical sensor for detecting toxic heavy metal ions in water samples. Human activities including mining, industrial waste, and improper disposal of microplastics in water bodies release heavy metals that pose serious health risks. The sensor offers a rapid, low-cost alternative to laboratory analysis for monitoring water quality.
Label-free impedimetric analysis of microplastics dispersed in aqueous media polluted by Pb2+ ions
Researchers developed a simple electrochemical method to distinguish between clean and lead-contaminated microplastics in water without needing complex laboratory equipment. The technique uses impedance measurements to rapidly detect whether microplastics carry adsorbed heavy metal pollutants. The approach could be useful for quick field assessments of how contaminated microplastics are in environmental water samples.
Nanoplastic/metal interaction under flow conditions: an innovative coupling of microfluidic and spectrometry.
Researchers developed an innovative coupling of microfluidic systems with spectrometry to study nanoplastic and trace metal interactions under controlled flow conditions, examining how oxygenated surface functional groups on degraded plastic particles influence metal speciation and transport in aquatic matrices. The study demonstrated that nanoplastics with carboxylic surface groups formed under environmental degradation conditions can significantly alter trace metal behaviour, with implications for combined toxicity and metal cycling in natural waters.
Multi-element analysis of unfiltered samples in river water monitoring—digestion and single-run analyses of 67 elements
Researchers evaluated digestion and analytical protocols for multi-element analysis of unfiltered river water samples, testing whether acid digestion methods suitable for filtered samples also perform reliably for total-element determinations. The study identified conditions under which particulate-bound metals in unfiltered samples are accurately recovered, improving environmental monitoring workflows.
Measuring Microplastic Concentrations in Water by Electrical Impedance Spectroscopy
Researchers developed a method using electrical impedance spectroscopy to measure microplastic concentrations in water samples without requiring complex laboratory equipment. The technique can distinguish between different concentrations and types of plastic particles based on their electrical properties. The study offers a potentially faster and more accessible approach for routine microplastic monitoring in water treatment and environmental settings.
Coupling single particle ICP-MS with field-flow fractionation for characterizing metal nanoparticles contained in nanoplastic colloids
A combination of field-flow fractionation and single-particle ICP-MS was used to characterize composite particles containing metal nanoparticles in a polymer matrix, simulating what happens when plastic particles age in the environment and accumulate metals. This analytical approach helps reveal the complex chemical nature of weathered microplastics.
Application of laser-induced breakdown spectroscopy for heavy metal detection in aqueous solutions
Researchers reviewed advances in laser-induced breakdown spectroscopy for detecting heavy metals in aqueous solutions, summarizing how improvements in sample preparation, system design, and data processing are overcoming limitations of plasma quenching and liquid splashing to enable rapid, in-situ multi-element analysis.
Emerging electrochemical techniques for identifying and removing micro/nanoplastics in urban waters
This review examines emerging electrochemical techniques for detecting and removing micro- and nanoplastics from urban waters, highlighting their advantages over conventional methods for enabling real-time monitoring and efficient degradation.
Application of Single-Particle ICP-MS to Determine the Mass Distribution and Number Concentrations of Environmental Nanoparticles and Colloids
Researchers applied single-particle ICP-MS to characterize elemental composition and size distributions of nanoparticles, colloids, and their aggregates in environmental samples. The study demonstrates that spICP-MS can effectively analyze homoaggregation and heteroaggregation of natural and anthropogenic nanoparticles including plastic-associated metal contaminants.
Identifying microplastic contamination in drinking water: analysis and evaluation using spectroscopic methods
Researchers developed analytical methods to identify and quantify microplastic contamination in drinking water, evaluating extraction efficiency and detection accuracy across different water types and plastic particle sizes. The study assessed health implications based on measured plastic loads in treated water.
Treatment of electroplating wastewater using electrocoagulation and integrated membrane
This study developed an electrocoagulation and membrane filtration system that removes over 99% of heavy metals from industrial wastewater. While not directly about microplastics, the technology is relevant because microplastics in water often carry heavy metals that can leach into drinking water. Improved industrial wastewater treatment reduces the overall toxic burden in water systems that people depend on.
Protocol for low-cost quantification of microplastics through electrochemical impedance spectroscopy from aqueous matrices
Most methods for detecting microplastics in water require expensive equipment or time-consuming laboratory steps. This study presents a simple protocol using electrochemical impedance spectroscopy (EIS) — measuring how microplastics change the electrical resistance of a solution — to rapidly and cheaply quantify plastic particles in water samples. Validated against conventional optical methods, the approach could make routine microplastic monitoring more affordable and accessible, particularly for lower-resource settings or high-throughput screening applications.
The Application of Electrochemical Methods in Water Treatment
This review examines electrochemical methods for water treatment, covering electrocoagulation, electrooxidation, and electrodeposition processes and their applications for removing heavy metals, organic pollutants, and emerging contaminants including microplastics from water.
Influence of land use class and configuration on water-sediment partitioning of heavy metals
Researchers analyzed how land use patterns and population density influence the partitioning of heavy metals between river water and sediment, finding that agricultural land discharges the highest dissolved metal fractions and that fragmenting anthropogenic land into smaller patches reduces water-column metal pollution.
Simple in situ preconcentration for electrolyte atmospheric liquid discharge optical emission spectrometric determination of trace cadmium on microplastics
Researchers developed an in-situ preconcentration method using electrolyte atmospheric liquid discharge spectroscopy to detect trace cadmium on microplastic surfaces, enabling sensitive analysis of how microplastics accumulate heavy metal contaminants.
Removal and toxic forecast of microplastics treated by electrocoagulation: Influence of dissolved organic matter
Electrocoagulation was evaluated for removing microplastics from water, with researchers investigating how co-pollutants and water chemistry affect removal efficiency and identifying the degradation products and toxicity of residual MPs post-treatment. The method showed high removal rates under optimized conditions but generated some toxic byproducts that require further management.
Electrocoagulation in Wastewater from Spent-Batteries Recycling
Researchers applied electrocoagulation to reduce heavy metal concentrations in wastewater from spent battery recycling, using ICP-OES analysis to confirm that metals exceeded environmental water standards and testing three electrode material combinations — including iron — in a 500 mL reactor.