The removal of Hg from solid waste plays a key role in environmental protection. In this study, a fast, simple, and effective method for the removal of Hg by acid extraction, using a combination of vortex agitation and ultrasonic irradiation along with hydrobromic acid (HBr), was established using Hg-containing solid wastes. The optimal durations of vortex agitation and ultrasonic irradiation with 48% v/v of HBr were 5 and 6 min, respectively, and total Hg (T-Hg) extraction was achieved within 21 min. The proposed method was validated using the Certified Reference Material (CRM) ERM CC580 (estuarine sediment) and CRM NMIJ 7302-a (marine sediment). Under the optimized conditions, the efficiency rates of T-Hg extraction in both CRMs were 99.5% and 94.2%, with repeatabilities of 3.21% RSD and 2.31% RSD, respectively. The proposed extraction method can also be used for the remediation of Hg in other environmental matrices.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s00128-022-03471-0 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Application of core-shell magnetic metal-organic framework in developing dispersive micro solid phase extraction combined with dispersive liquid-liquid microextraction for the extraction and enrichment of some pesticides in orange blossom, Aloysia Citrodora, and fennel herbal infusions.
J Chromatogr A
January 2025
Food and Drug Safety Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Research Center of New Material and Green Chemistry, Khazar University, 41 Mehseti Street, Baku AZ1096, Azerbaijan; Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
This paper introduces an innovative technique for extracting pesticides from herbal infusions using a core-shell magnetic adsorbent (i.e., Cu-BTC@FeO) where achieving a notable enrichment factor for the target pesticides by coupling with a dispersive liquid-liquid microextraction method.
View Article and Find Full Text PDFPovidone-iodine and silver nitrate are equally effective in eradicating staphylococcal biofilm grown on a titanium surface: an in-vitro analysis.
J Hosp Infect
January 2025
'Sir John Charnley' Hip Surgery Unit, Institute of Orthopaedics 'Carlos E. Ottolenghi', Italian Hospital of Buenos Aires, Buenos Aires, Argentina. Electronic address:
Article Synopsis
- The study investigates which antibacterial solutions are most effective in eradicating biofilms formed by staphylococcal bacteria on titanium surfaces during DAIR surgery.
- Five antibacterial agents are tested: povidone-iodine, rifampicin, silver nitrate, copper sulphate, and chlorhexidine, focusing on their minimum biofilm eradication concentrations (MBEC) against both MSSA and MRSA strains.
- Results indicate that povidone-iodine and silver nitrate are significantly more effective, achieving at least 99.9% reduction in biofilm, compared to others like rifampicin and copper sulphate, which showed limited effectiveness.
Bacterial adhesion and surface roughness of particulate-filled and short fiber-reinforced composites.
Odontology
September 2024
Department of Biomaterials Science and Turku Clinical Biomaterial Center, TCBC, Institute of Dentistry, University of Turku, Turku, Finland.
The objective of the study was to assess the initial adhesion of Streptococcus mutans (S. mutans) and surface roughness of different particulate-filled (PFC) and short fiber-reinforced (SFRC) composites. Five PFC composites (CeramX Universal, Filtek Universal, Omnichroma, Tetric Prime and Venus Diamond) and four SFRC composites (everX Posterior, everX Flow Bulk, everX Flow Dentin and experimental packable SFRC) were tested in this study.
View Article and Find Full Text PDFA gold nanoparticle (AuNP)-supported rapid, electronic detection (NasRED) platform is demonstrated with high specificity to differentiate SARS-CoV-2 from human coronaviruses while achieving high sensitivity. Uniquely, active fluidic force is exerted on AuNPs in a microcentrifuge tube, through engineered centrifugation and vortex agitation, to accelerate signal transduction from biochemical protein binding to physical AuNP aggregation and precipitation and finally to electronic signals in a customized, stabilized circuitry. The limits of detection are found <80 aM (12 fg/mL) and ∼700 aM (105 fg/mL) to detect antibodies in human pooled serum and 20% diluted whole blood, and <900 aM (45 fg/mL) and 4.
View Article and Find Full Text PDFExploring conventional and emerging dehydration technologies for slurry/liquid food matrices and their impact on porosity of powders: A comprehensive review.
Compr Rev Food Sci Food Saf
May 2024
Department of Soils and Agri-Food Engineering, Laval University, Quebec City, Quebec, Canada.
The contribution of dehydration to the growing market of food powders from slurry/liquid matrices is inevitable. To overcome the challenges posed by conventional drying technologies, several innovative approaches have emerged. However, industrial implementation is limited due to insufficient information on the best-suited drying technologies for targeted products.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!