magnetic solid phase extraction using gold immobilized

magnetic solid phase extraction using gold immobilized

Magnetic solid phase extraction using gold immobilized ...

2014-10-17 · An efficient magnetic sorbent was introduced for solid phase extraction by incorporation of the gold nanoparticles into the hexagonal lattice of magnetic MCM-41. For the effective incorporation of the gold nanoparticles, magnetic MCM-41 was functionalized with 3-aminopropyltriethoxysilane (APTES), which then interacted with Au atoms through the ...

Magnetic solid phase extraction using gold immobilized ...

Magnetic solid phase extraction using gold immobilized magnetic mesoporous silica nanoparticles coupled with dispersive liquid-liquid microextraction for determination of polycyclic aromatic ...

magnetic ncentration theory in gold extraction solution

Magnetic solid phase extraction using gold immobilized An efficient magnetic sorbent was introduced for solid phase extraction by incorporation of the gold nanoparticles into the hexagonal lattice of magnetic MCM41 For the effective incorporation of the gold nanoparticles, magnetic MCM41 was functionalized with 3aminopropyltriethoxysilane (APTES), which then interacted with Au atoms through ...

Magnetic Solid Phase Extraction Applied to Food Analysis

Magnetic solid phase extraction has been used as pretreatment technique for the analysis of several compounds because of its advantages when it is compared with classic methods. This methodology is based on the use of magnetic solids as adsorbents for preconcentration of different analytes from complex matrices. Magnetic solid phase extraction minimizes the use of additional steps such as ...

Nanoparticles Used for Extraction of Polycyclic Aromatic ...

M. Ali, E. Khojastehb, T. Kayyalb, and A. Jabbari, “Magnetic solid phase extraction using gold immobilized magnetic mesoporous silica nanoparticles coupled with dispersive liquid–liquid microextraction for determination of polycyclic aromatic hydrocarbons,” Journal of Chromatography A, vol. 1364, pp. 20–27, 2014.

Magnetic nanoparticles modified with polyfuran for the ...

2015-8-23 · Magnetic solid phase extraction using gold immobilized magnetic mesoporous silica nanoparticles coupled with dispersive liquid–liquid microextraction for determination of polycyclic aromatic hydrocarbons. J Environ Sci 23:860–867. Article CAS Google Scholar 23.

A Highly Sensitive Dispersive Microextraction Method with ...

2018-1-19 · Abstract. In this work, a highly sensitive solid-phase-dispersive microextraction method was designed based on magnetic carbon nanocomposites as a magnetic solid-phase extraction sorbent coupled with dispersive liquid–liquid microextraction and two miscible stripping solvents (MSPE–DLLME) followed by gas chromatography–mass spectrometry (GC–MS) for determination of 16 polycyclic ...

Synergetic dual recognition and separation of the ...

2016-2-12 · The authors describe a nanomaterial for solid-phase extraction of carbendazim. Magnetic molecularly imprinted polymer nanoparticles (mag-MIP-NPs) were obtained by immobilizing the MIP and a thiolated β-cyclodextrin on the surface of magnetite (Fe 3 O 4) nanoparticles coated with gold nanoparticles.Both the recognition sites of the MIP and the hydrophobic cavities in the β-cyclodextrin ...

Poly(ionic liquid) immobilized magnetic nanoparticles as ...

2014-9-5 · Magnetic solid-phase extraction (MSPE), based on the use of magnetic adsorbents, has recently attracted great deal of attention as a new sample preparation technique , , , , . In this procedure, magnetic adsorbents are dispersed into sample solution, providing a fast and efficient approach to extract and enrich the target analytes.

Magnetic solid phase extraction using gold immobilized ...

Magnetic solid phase extraction using gold immobilized magnetic mesoporous silica nanoparticles coupled with dispersive liquid–liquid microextraction for determination of polycyclic aromatic hydrocarbons Ali Mehdinia a,∗ , Esmail Khojasteh b , Tohid Baradaran Kayyal b , Ali Jabbari b a b

magnetic ncentration theory in gold extraction solution

Magnetic solid phase extraction using gold immobilized An efficient magnetic sorbent was introduced for solid phase extraction by incorporation of the gold nanoparticles into the hexagonal lattice of magnetic MCM41 For the effective incorporation of the gold nanoparticles, magnetic MCM41 was functionalized with 3aminopropyltriethoxysilane (APTES), which then interacted with Au atoms through ...

Magnetic Solid Phase Extraction as a Promising Technique ...

The widespread use of silver nanoparticles (AgNPs) and gold nanoparticles (AuNPs) in a wide variety of industrial as well as medical sectors is indisputable. This leads to a new concern about their presence in various environmental compartments. Since their negative effect and potential toxicity impact have been confirmed, analytical chemists focus on the development of different procedures ...

Facile preparation of surface-exchangeable [email protected]

Magnetic solid phase extraction using gold immobilized magnetic mesoporous silica nanoparticles coupled with dispersive liquid-liquid microextraction for determination of polycyclic aromatic ...

Magnetic solid-phase extraction combined with graphite ...

A new approach of magnetic solid phase extraction (MSPE) coupled with graphite furnace atomic absorption spectrometry (GFAAS) has been developed for the speciation of Cr(III) and Cr(VI) using zincon-immobilized silica-coated magnetic Fe3O4 nanoparticles (Zincon-Si-MNPs) as the MSPE absorbent. Cr(III

Solid-phase extraction of Cr(VI) with magnetic melamine ...

2021-5-1 · A new method for magnetic solid-phase separation of trace-levels of Cr(VI) by using magnetic nanoparticles modified melamine–formaldehyde resin (Fe 3 O 4 @MFR) was described. Also, the selective and sensitive chemical optical probe was developed based on citrate-polyvinyl alcohol capped gold nanoparticle and modified with the reagent p-amino hippuric acid (PAH).

Magnetic solid phase extraction of glyphosate and ...

2015-5-29 · Magnetic solid phase extraction of glyphosate and aminomethylphosphonic acid in river water using Ti 4+-immobilized Fe 3 O 4 nanoparticles by capillary electrophoresis Ya-lei Dong , ab Dong-qiang Guo , a Hong Cui , a Xiang-jun Li * a and

A magnetized fungal solid-phase extractor for the ...

The fungus Bovista plumbea immobilized on γ-Fe 2 O 3 nanoparticles is shown to be a novel sorbent for magnetic solid-phase extractions of U(VI) and Th(IV). The biosorbent was characterized by FT-IR, SEM, and EDX. The effects of pH value, flow rate and volume of sample, amounts of biomass and support material, eluent type, foreign ions and repeated use of the sorbent on extraction efficiency ...

Zincon-immobilized silica-coated magnetic Fe3O4 ...

A new protocol using zincon-immobilized silica-coated magnetic Fe(3)O(4) nanoparticles (Zincon-Si-MNPs) as solid-phase extraction (SPE) medium has been developed for the separation and preconcentration of trace lead in water. Various parameters such as

A novel composite of nanomagnetite-immobilized-baker’s ...

2015-1-1 · The magnetic solid phase extraction (MSPE) of Hg(II) from aqueous solutions was studied by measuring the metal sorption capacity and the maximum values were identified in the range of 250–800 μmol g −1. The factors affecting MSPE process of mercury (II) from aqueous solutions were also optimized including the pH, shaking time, interfering ...

Magnetic solid phase extraction using gold immobilized ...

Magnetic solid phase extraction using gold immobilized magnetic mesoporous silica nanoparticles coupled with dispersive liquid–liquid microextraction for determination of polycyclic aromatic hydrocarbons Ali Mehdinia a,∗ , Esmail Khojasteh b , Tohid Baradaran Kayyal b , Ali Jabbari b a b

Magnetic solid phase extraction using gold immobilized ...

Magnetic solid phase extraction using gold immobilized magnetic mesoporous silica nanoparticles coupled with dispersive liquid–liquid microextraction for determination of polycyclic aromatic hydrocarbons A Author: Mehdinia, Ali, Khojasteh, Esmail, Baradaran Kayyal, Tohid, Jabbari, Ali Source: Journal of chromatography 2014 v.1364 pp. 20-27 ISSN:

magnetic ncentration theory in gold extraction solution

Magnetic solid phase extraction using gold immobilized An efficient magnetic sorbent was introduced for solid phase extraction by incorporation of the gold nanoparticles into the hexagonal lattice of magnetic MCM41 For the effective incorporation of the gold nanoparticles, magnetic MCM41 was functionalized with 3aminopropyltriethoxysilane (APTES), which then interacted with Au atoms through ...

tailieuXANH - Magnetic solid-phase extraction based on ...

A method for preconcentration of Al(III) prior to its determination by inductively coupled plasma-optical emission spectrometry (ICP-OES) was developed because the sensitivity of ICP-OES is insufficient for trace-level measurement of Al(III). The method is based on the use of Coriolus versicolor-immobilized γ-Fe2O3 magnetic nanoparticles as a solid phase sorbent. The best experimental ...

(PDF) Magnetic solid phase extraction of glyphosate and ...

PDF | The residual glyphosate (GLYP) in environment is harmful for human health. Monitoring of GLYP and its major metabolite aminomethylphosphonic acid... | Find, read and cite all the research ...

(PDF) Magnetic solid phase extraction based on Coriolus ...

Magnetic solid phase extraction based on Coriolus versicolor immobilized γ-Fe2O3 nanoparticles for preconcentration and determination of Al(III) in water and food samples' October 2019 Turkish ...

Magnetic solid-phase extraction using poly(para ...

2015-10-9 · 2.5. Magnetic SPE procedure. For the extraction, 20 mL sample solution (water and urine samples) was mixed with 20 mg of PpPD/Fe 3 O 4 nanoparticles in a 25 mL sample vial. Subsequently, the mixture was homogenized and the extraction was performed under ultrasonic action for 2 min.Then, the magnetic adsorbent was collected using an external magnet and supernatant solution was decanted.

Determination of microcystin-LR in surface water by a ...

2015-9-10 · Solid phase extraction proved to be the most beneficial sample preparation method in order to reduce matrix effects which might lead to agglomeration of the AuNPs and failing of the assay. The developed method could detect MC-LR in a linear range from 0.51–11.68 μg L −1 with a limit of detection (LOD) of 0.38 μg L −1 .

A novel strategy for sequential analysis of gold ...

In this work, Al 3+ immobilized Fe 3 O 4 @SiO 2 @iminodiacetic acid (IDA) was prepared and its extraction performance for gold nanoparticles (AuNPs) and gold ions (Au ions) was investigated. It was found that AuNPs and Au ions could be simultaneously

Solid phase extraction of trace level Ag(I) using Coriolus ...

2019-5-11 · Solid phase extraction of trace level Ag(I) using Coriolus versicolor immobilized magnetic nanoparticles and its determination by ICP-OES M. Serkan Yalçın , Corresponding Author