In aqueous environment, water-soluble polymers are effectively used to separate free metal ions from metal-polymer complexes. The feasibilities of four different analytical techniques, cadmium ion-selective electrode, dialysis sack, chelate disk cartridge, and ultrafiltration, in distinguishing biopolymer-bound and nonbound cadmium in aqueous samples were investigated. And two different biopolymers were used, including bovine serum albumin (BSA) and biopolymer solution extracted from cultivated activated sludge (ASBP). The ISE method requires relatively large amount of sample and contaminates sample during the pretreatment. After the long reaction time of dialysis, the equilibrium of cadmium in the dialysis sack would be shifted. Due to the sample nature, chelate disk cartridge could not filter within recommended time, which makes it unavailable for biopolymer use. Ultrafiltration method would not experience the difficulties mentioned above. Ultrafiltration method measuring both weakly and strongly bound cadmium was included in nominally biopolymer-cadmium complex. It had significant correlation with the Ion-selective electrode (ISE) method (R² = 0.989 for BSA, 0.985 for ASBP).
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3782058 | PMC |
| http://dx.doi.org/10.1155/2013/270478 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
CuSeO@f-CNFs: A superoxide nanozyme for the selective nanomolar determination of the key cardiovascular biomarker, Glutathione.
Talanta
January 2025
International Ph. D Program in Innovative Technology of Biomedical Engineering & Medical Devices, Ming Chi University of Technology, New Taipei City 243303, Taiwan; Research Center for Intelligence Medical Devices, Ming Chi University of Technology, New Taipei City 243303, Taiwan. Electronic address:
Nanocomposites that mimic the characteristics of enzymes, commonly as nanozymes, can function as an efficient sensing material with high selectivity towards the targeted biological macromolecule. These nanozymes overcome of the challenges that arise when using natural enzymes as sensing material. This study presents a novel nanozyme, Copper Selenite (CuSeO) nanoparticles mounted on f-CNF, to electrochemically determine a potential cardiovascular biomarker, Glutathione (GSH).
View Article and Find Full Text PDFA green cycle strategy for selective leach and recovery of critical metals from spent lithium-ion batteries: Experimental and new mechanistic insights.
J Hazard Mater
January 2025
Hubei Three Gorges Laboratory, Yichang 443000, China.
With the global surge in lithium-ion batteries (LIBs), recycling spent LIBs has become an essential and urgent research area. In the context of global efforts to promote sustainable development, and achieve energy conservation and emission reduction, advancing recycling technologies that efficiently recover critical metals like Ni, Co, Mn, and Li is crucial. Herein, a novel and environmentally friendly simplified process for selectively extracting critical metals from the mixed electrode materials of spent LIBs is proposed for the first time.
View Article and Find Full Text PDFMeasurement of Fluoride Ion Release From Restorative Material Using an Ion-Selective Electrode and Ultraviolet-Visible Light Spectrophotometer.
J Int Soc Prev Community Dent
December 2024
Department of Environmental Science, School of Life Sciences, Mysuru, JSS Academy of Higher Education and Research, Mysore, Karnataka, India.
Background: Importance of fluoride in dental restorative materials for preventing secondary caries. Several commercially available tooth-colored dental restorative materials, such as glass ionomer cement, resin composites, and compomers were used for this study.
Aim: To evaluate the amount of fluoride release from tooth-colored restorative materials [Conventional Glass Ionomer Cement (GC Fuji II)], Resin-modified Glass Ionomer Cement (ACTIVA BioACTIVE-RESTORATIVE), and Giomer (BEAUTIFIL II LS)] using ion-selective electrode (ISE) and spectrophotometer using zirconyl alizarin red dye method.
Polymeric hydrogel integrated paper-based potentiometric ion-sensing device for the determination of sodium ions in human urine.
Analyst
January 2025
Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan.
A paper-based potentiometric sensor integrated with a polymeric hydrogel has been developed for sodium ion (Na) determination in human urine. The construction of an all-solid-state ion selective electrode (s-ISE) and an all-solid-state reference electrode (s-RE) on a photo paper substrate was achieved using an inkjet printing method. For s-ISE fabrication, carbon nanotubes (CNTs) and gold nanoparticles (AuNPs) were printed on the substrate as a nanocomposite solid contact.
View Article and Find Full Text PDFDesign of Carbon Materials with Selective Ion Separation in Capacitive Deionisation and Their Applications.
ChemSusChem
January 2025
Kashi University, Water Resources and Water Environment Engineering Technology Center, Xinjiang Key Laboratory of Novel Functional Materials Chemistry, College of Chemistry and Environmental Sciences;Xinjiang Key Laboratory of Engineering Materials and Structural Safety，School of Civil Engineering, CHINA.
Capacitive deionization (CDI) is a novel, cost-effective and environmentally friendly desalination technology that has garnered significant attention in recent years. Carbon materials, owing to their excellent properties, have become the preferred electrode materials for CDI. Given the significant differences between different ions, ion-selective performance has emerged as a critical aspect of CDI applications.
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!