Articles with "lead ions" as a keyword



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A highly sensitive DNAzyme-based SERS biosensor for quantitative detection of lead ions in human serum

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Published in 2020 at "Analytical and Bioanalytical Chemistry"

DOI: 10.1007/s00216-020-02709-2

Abstract: Lead ions (Pb 2+ ), one form of the toxic heavy metal, have drawn significant attention due to their harmful effects on human health and the environment. Although many analytical techniques have been developed over… read more here.

Keywords: detection; lead ions; sers biosensor; human serum ... See more keywords
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Determination of lead ions in fish and oyster samples using a nano-adsorbent of functionalized magnetic graphene oxide nanosheets-humic acid and the flame atomic absorption technique

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Published in 2021 at "Environmental Monitoring and Assessment"

DOI: 10.1007/s10661-021-09613-x

Abstract: This study aims at the functionalization of magnetic graphene oxide nanosheets and the binding of humic acid as a lead complex ligand. Graphene oxide nanosheets possess a large surface area and various carboxylic acid groups… read more here.

Keywords: graphene oxide; atomic absorption; lead ions; magnetic graphene ... See more keywords
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Ion imprinting approach for the fabrication of an electrochemical sensor and sorbent for lead ions in real samples using modified multiwalled carbon nanotubes

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Published in 2017 at "Journal of Materials Science"

DOI: 10.1007/s10853-017-1787-x

Abstract: A highly selective electrochemical sensor for lead ions was fabricated using mutiwalled carbon nanotube as the backbone. The binding sites for lead ions were sculpted with lead ion as template and NNMBA-crosslinked polyacrylamide as the… read more here.

Keywords: lead ions; real samples; samples using; ion ... See more keywords
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The Deposition Characteristics of Coupled Lead Ions and Suspended Silicon Powders Along the Migration Distance in Water Seepage

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Published in 2020 at "Transport in Porous Media"

DOI: 10.1007/s11242-020-01464-3

Abstract: The deposition characteristics of lead ions (Pb2+) in the presence of silicon powders (i.e., suspended particles, SPs) were investigated in water seepage in a long one-dimensional sand column experiment. The injected SPs possess a very… read more here.

Keywords: water; distance; lead ions; migration ... See more keywords
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Application of Ultrasonic Assisted-Dispersive Solid Phase Extraction Based on Ion-Imprinted Polymer Nanoparticles for Preconcentration and Trace Determination of Lead Ions in Food and Water Samples

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Published in 2017 at "Food Analytical Methods"

DOI: 10.1007/s12161-016-0788-8

Abstract: In this paper, we describe ultrasonic assisted-dispersive solid phase extraction based on ion-imprinted polymer (UA-DSPE-IIP) nanoparticles for the selective extraction of lead ions. Ultrasound is a good and robust method to facilitate the extraction of… read more here.

Keywords: ion imprinted; extraction; lead ions; imprinted polymer ... See more keywords
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Biochar-supported reduced graphene oxide composite for adsorption and coadsorption of atrazine and lead ions

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Published in 2018 at "Applied Surface Science"

DOI: 10.1016/j.apsusc.2017.07.237

Abstract: Abstract To explore potential in application for simultaneous removal of atrazine and lead ions (Pd2+), the adsorption and coadsorption of atrazine and Pd2+ is evaluated onto a novel biochar-supported reduced graphene oxide composite (RGO-BC), which… read more here.

Keywords: graphene oxide; adsorption; lead ions; atrazine lead ... See more keywords
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Surface modification of azurite with lead ions and its effects on the adsorption of sulfide ions and xanthate species

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Published in 2021 at "Applied Surface Science"

DOI: 10.1016/j.apsusc.2020.148795

Abstract: Abstract Enhancing the sulfidization of copper oxide minerals has been widely studied to improve flotation recovery. In this study, we investigated azurite surface modification with lead ions and its effects on the adsorption of sulfide… read more here.

Keywords: adsorption; sulfide ions; surface; lead ions ... See more keywords
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Modification of malachite surfaces with lead ions and its contribution to the sulfidization flotation

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Published in 2021 at "Applied Surface Science"

DOI: 10.1016/j.apsusc.2021.149350

Abstract: Abstract Malachite is a common copper-oxide resource, and it is usually enriched by sulfidization flotation. Its floatability and recovery are greatly determined by the surface sulfidization results. In this paper, Pb(NO3)2 is used to pretreat… read more here.

Keywords: surface; sulfidization flotation; sulfidization; malachite ... See more keywords
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Presence of nano-sized chitosan-layered silicate composites protects against toxicity induced by lead ions.

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Published in 2017 at "Carbohydrate polymers"

DOI: 10.1016/j.carbpol.2016.11.084

Abstract: Protecting cells from toxicosis even apoptosis induced by a variety of toxic heavy metals stimulus has drawn more and more attentions. This study was designed to elucidate whether chitosan-organic rectorite (CS-OREC) composites exhibited any protective… read more here.

Keywords: orec composites; presence nano; lead ions; cells exposed ... See more keywords
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A facile one-step synthesized epsilon-MnO2 nanoflowers for effective removal of lead ions from wastewater.

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Published in 2020 at "Chemosphere"

DOI: 10.1016/j.chemosphere.2020.126329

Abstract: The increasing contamination of lead ions (Pb(II)) in groundwater has become a serious environmental issue, which provides the impetus for intense research on Pb(II) removal. ε-MnO2 nanoflowers were successfully fabricated through a simple decomposition reaction.… read more here.

Keywords: facile one; lead ions; one step; mno2 nanoflowers ... See more keywords
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Efficient removal of cadmium and lead ions from water by hydrogels modified with cystine

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Published in 2018 at "Journal of environmental chemical engineering"

DOI: 10.1016/j.jece.2018.05.054

Abstract: Abstract A hydrogel based on poly(N-isopropylacrylamide) (NIPA) crosslinked with the diacryloyl derivative of cystine (BISS) was synthesized using the free radical polymerization. The NIPA-BISS hydrogel rich in cystine appeared to be a competitive sorbent and… read more here.

Keywords: lead ions; cadmium lead; ions water; efficient removal ... See more keywords