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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 ...

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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 ...

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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.

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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

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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

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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

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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 ...

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β-Cyclodextrin-grafted magnetic graphene oxide ...

2021-3-19  This article presents an ultrasound-assisted dispersive magnetic solid-phase extraction method (USA-DMSPE) to preconcentration Cd(II) and Pb(II) simultaneously. The adsorbent (mGO-βCD) was synthesized through three steps with consumption of environmentally friendly materials at room temperature. First graphene oxide (GO) was prepared via modified Hummer’s method and then

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Screening of lipase inhibitors from Scutellaria ...

2016-2-12  Scutellaria baicalensis is a traditional Chinese medicinal plant possessing a wide variety of biological activities. In this work, lipase immobilized on magnetic nanoparticles (LMNPs) was used as solid phase extract absorbent for screening of lipase inhibitors from this plant. Three flavonoids were found to bind to LMNPs and were identified as baicalin, wogonin, and oroxylin A by liquid ...

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付凤富 - 福州大学 - 环境与资源学院

11, Facile synthesis of magnetic covalent organic framework nanobeads and application to magnetic solid-phase extraction of trace estrogens from human urine. Journal of

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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 .

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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 ...

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(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 ...

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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 pH, extraction time, concentration and volume o

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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

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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).

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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

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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 ...

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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.

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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

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PRIME PubMed Magnetic solid phase extraction using

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 amine groups. Furthermore, to

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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 .

Read More
A novel strategy for sequential analysis of gold ...

A novel strategy for sequential analysis of gold nanoparticles and gold ions in water samples by combining magnetic solid phase extraction with inductively coupled plasma mass spectrometry S. Su, B. Chen, M. He, Z. Xiao and B. Hu, J. Anal.

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(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 ...

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Zincon-immobilized silica-coated magnetic Fe3O4 ...

2012-5-30  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 pH, extraction time, concentration and volume of eluent, sample volume, and influence of co ...

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Magnetically responsive textile for a new preconcentration ...

2021-6-17  A new preconcentration procedure named “Magnetic textile solid phase extraction” was developed. A piece of nonwoven textile (fabric) was used for the immobilization of copper phthalocyanine dye and employed for the adsorption of crystal violet and safranin O from large volumes of sample. The bound dye was eluted into small volume of methanol.

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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.

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

Magnetic solid phase extraction (MSPE) is a new type of sample preparation technology widely used in the detection of organic pollutants Zheng et al., 2014), metal ions (Xiang et

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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

Read More
付凤富 - 福州大学 - 环境与资源学院

11, Facile synthesis of magnetic covalent organic framework nanobeads and application to magnetic solid-phase extraction of trace estrogens from human urine. Journal of Chromatography A, 1567, 136-146, 2018.

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