Consult More
Welcome to Charry Machinery Factory
[email protected]
Consult More
Oct 17, 2014 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.
Get Quote
Magnetic dispersive solid-phase extraction MDSPE is combined with electrochemical detection by using a screen-printed carbon electrode modified with gold nanoparticles to determine leadII. A zeolite-based magnetic composite was used as sorbent during sample preparation, thus combining the unique
Get Quote
Sep 11, 2020 The aim of this article is to bring a review of recent works where magnetic solid-phase extraction MSPE procedures in connection with spectrometric methods were used for separationpreconcentration and quantification of 1 silver and gold ions in various environmental samples, 2 AgNPs and AuNPs in real water samples in the presence of ...
Get Quote
The extraction phase was conveniently immobilized into the solid phase extraction channel by magnetic field. In this system, injection of the sample solution into the SPE channel PDMS-OH microspheres bed, and the desorption of analyte from the sorbent phase into the electrophoresis channel was electrically driven 191 .
Get Quote
A new approach of magnetic solid phase extraction MSPE coupled with graphite furnace atomic absorption spectrometry GFAAS has been developed for the speciation of CrIII and CrVI using zincon-immobilized silica-coated magnetic Fe3O4 nanoparticles Zincon-Si-MNPs as the MSPE absorbent. CrIII
Get Quote
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 ...
Get Quote
Nov 29, 2019 A simple, sensitive, and reliable magnetic solid-phase extraction SPE method coupled with GC-MSMS for the effective analysis of four pyrethroids from tea infusions was developed. A magnetic adsorbent, named ionic liquid-modified magnetic zeolitic imidazolate framework-8 Fe3O4ZIF-8IL, was prepared by immobili
Get Quote
Jul 30, 2013 Analysis of microcystins using high-performance liquid chromatography and magnetic solid-phase extraction with silica-coated magnetite with cetylpyridinium chloride. Journal of Separation Science 2017, 40 8 , 1644-1650.
Get Quote
TitleMagnetic Solid-Phase Extraction for the Determination of Ochratoxin A in Wine and Beer by HPLC-FLD VOLUME 14 ISSUE 2 AuthorsPeng Li, Fei Pei, Qin Liu and Yong Fang AffiliationCollege of Food Science and Engineering, Nanjing University of Finance and Economics, Collaborative Innovation Center for Modern Grain Circulation and Safety, Key Laboratory of Grains and Oils Quality Control ...
Get Quote
Dec 13, 2005 The gold-coated magnetic particles with anti-CRP monoclonal Fab reagents provide assays with enhanced assay slope 1.8-fold, lower nonspecific adsorption, and a detection limit improvement of nearly 10-fold 0.14 vs 1.9 ngmL compared to the same Fab anti-CRP immobilized on the initial tosylated polystyrene magnetic particles.
Get Quote
Abstract. Magnetic solid-phase extraction is a new procedure for the preconcentration of target analytes from large volumes based on the use of magnetic or magnetizable adsorbents. In the experiments reactive copper phthalocyanine dye attached to silanized magnetite, and magnetic charcoal were used as adsorbents and selected organic dyes were used as analytes.
Get Quote
May 29, 2015 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 Yu-jian He a
Get Quote
Jan 01, 2017 The authors describe a microfluidic method for desorption-free magnetic solid phase extraction MSPE of Hg2 ions prior to their determination through ICP-MS. Nanoparticles comprising a gold core and an iron oxide Fe3O4 shell were functionalized with l-cysteine and then used to extract trace amounts of Hg2.
Get Quote
The PIL-MNPs were utilized as adsorbent phases in magnetic solid-phase extraction MSPE. The extraction and enrichment efficiency were evaluated by using four organophosphorus pesticides parathion, fenthion, phoxim and temephos as test analytes.
Get Quote
In this regard, new magnetic stationary phases based on polydopamine coating and Ti4 immobilization exploit the potential of IMAC enrichment and couple it with the versatility of magnetic solid phase extraction. In this work the use of such stationary phase was extended from the MALDI proof of concept stage with the development of an ...
Get Quote
A new protocol using zincon-immobilized silica-coated magnetic Fe 3O 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-existing ions have been investigated in
Get Quote
Jul 02, 2019 Mehdinia A, Khojasteh E, Kayyal TB, Jabbari A 2014 Magnetic solid phase extraction using gold immobilized magnetic mesoporous silica nanoparticles coupled with dispersive liquid-liquid microextraction for determination of polycyclic aromatic hydrocarbons. J Chromatogr A 13642027. CAS Article Google Scholar 31.
Get Quote
Jul 14, 2017 Mehdinia A, Khojasteh E, Kayyal TB, Jabbari A 2014 Magnetic solid phase extraction using gold immobilized magnetic mesoporous silica nanoparticles coupled with dispersive liquidliquid microextraction for determination of polycyclic aromatic hydrocarbons. J Chromatogr A 13642027. CAS Article Google Scholar 33.
Get Quote
Magnetic solid phase extraction MSPE accompanied with fluorescence spectrophotometry using Poly ionic liquid immobilized magnetic nanoparticles PIL-MNPs as sorbent was introduced for Congo red analysis in food. Poly 1-vinyl-3-butylimidazolium bromide immobilized MNPs were prepared through co-polymerization of 1-vinyl-3-hexylimidazolium-based ionic liquid and vinyl-modified magnetic ...
Get Quote
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 retained on this adsorbent and their separation was achieved by sequential elution of Au ions and AuNPs with Na 2 S 2 O 3 and NH 3 H 2 O ...
Get Quote
A magnetized graphene oxide modified with 2-mercaptobenzothiazole as a selective nanosorbent for magnetic solid phase extraction of goldIII, palladiumII and silverI Microchimica Acta 2017 184 8 2871 2879 10.1007s00604-017-2299-8 2-s2.0-85019168361 59 Mashhadizadeh M. H. Karami Z. Solid phase extraction of trace amounts of Ag, Cd, Cu, and ...
Get Quote
Jun 01, 2021 This method was developed by the implementation of Fe-ACFCNF to magnetic solid-phase extraction method MSPE for the adsorption of twenty-nine pesticides of various classes using gas chromatography equipped with an electron capture detector. Fe-ACFCNF was grown via tip growth mechanism and Fe-nanoparticles are moved to the tip of CNF.
Get Quote
Feb 12, 2016 Magnetic solid phase extraction of lipase inhibitors from S. baicalensis extract by using lipase immobilized on magnetic nanoparticles LMNPs and study on the inhibitory mechanism by using fluorescence quenching spectroscopy and the molecular docking technique
Get Quote
Feb 12, 2016 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 -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 -cyclodextrin contribute to the specific molecular recognition and extraction
Get Quote