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Early Strength Enhancement Mechanism of CaO-Modified Electrolytic Manganese Residue-Based Supersulfate Cement.
Materials (Basel)
January 2025
Guizhou Provincial Architectural Design & Research Institute Co., Ltd., Guiyang 550025, China.
Electrolytic manganese residue (EMR) is a solid waste generated during the production of electrolytic manganese metal through wet metallurgy, accumulating in large quantities and causing significant environment pollution. Due to its high sulfate content, EMR can be utilized to prepare supersulfate cement when combined with Ground Granulated Blast furnace Slag (GGBS). In this process, GGBS serves as the primary raw material, EMR acts as the sulfate activator, and CaO powder, along with trace amounts of cement, functions as the alkali activator.
View Article and Find Full Text PDFSexual Mosaicism and Teratogenesis in Simulium guianense s.l. and S. incrustatum s.l. (Diptera: Simuliidae), Onchocerciasis vectors, from Environmentally Impacted Areas in the Yanomami Indigenous Land, Brazil.
Neotrop Entomol
January 2025
Integrated Lab of Simuliidae and Onchocerciasis, Medical and Forensic Entomology, Oswaldo Cruz Institute (IOC), Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, RJ, Brazil.
Sexual mosaics in Simuliidae members have been detected at low frequencies in various locations worldwide. These phenotypic expressions are expected in very small amounts in any natural insect population and may result from inherent individual formation factors, such as hormonal or external elements, i.e.
View Article and Find Full Text PDFA Vacuum Ultraviolet (UV) Photoreactor-Based Flow Droplet Digestion for Determination of Arsenic and Mercury in Blood by Atomic Fluorescence Spectrometry.
Anal Chem
January 2025
Key Laboratory of Green Chemistry & Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan610064, China.
It is still challenging to perform a high-throughput digestion on limited amounts of sample prior to elemental analysis by atomic spectrometry. Herein, a photochemical reactor consisting of a quartz tube inserted into a low-pressure mercury lamp was used to fabricate a flow droplet photodigestion (FD-PD) device for the high-throughput digestion of small amounts of samples. A mixture containing 20 μL of blood sample, 20 μL of HO, and 10 μL of HNO was pumped and passed through the reactor before its online analysis by hydride generation atomic fluorescence spectrometry (HG-AFS).
View Article and Find Full Text PDFSimultaneous or separate detection of heavy metal ions Hg and Ag based on lateral flow assays.
Mikrochim Acta
January 2025
Department of General Surgery, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, 266035, China.
A lateral flow assay (LFA) was developed for the simultaneous or separate detection of mercury ion and silver ion based on isothermal nucleic acid amplification. T-Hg-T and C-Ag-C were utilized in the isothermal nucleic acid amplification strategy to form specific complementary base pairs. Under the action of KF polymerase and endonuclease Nt.
View Article and Find Full Text PDFEnhanced simultaneous voltammetric detection of lead, copper, and mercury using a MIL-101(Cr)-(COOH)@MWCNTs modified glassy carbon electrode.
Anal Chim Acta
February 2025
Chemistry Department, Faculty of Science, Ain-Shams University, Cairo, 11566, Egypt; Department of Chemistry, Faculty of Science, Galala University, New Galala City, Suez, Egypt. Electronic address:
Background: Electrochemical methods, particularly those utilizing sensors, offer distinct advantages over classical analytical methods. They are cost-effective, compatible with mass fabrication, suitable for remote sensing, and can be designed as handheld analyzers. In this context, MIL-101(Cr)-(COOH)₂@MWCNTs was utilized for the first time as a modifier for GCE for the sensitive voltammetric detection of Pb(II), Cu(II), and Hg(II).
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