Articles with "dispersive magnetic" as a keyword



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β-Cyclodextrin-grafted magnetic graphene oxide nanocomposites in ultrasound-assisted dispersive magnetic solid-phase extraction for simultaneous preconcentration of lead and cadmium ions

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Published in 2021 at "Research on Chemical Intermediates"

DOI: 10.1007/s11164-021-04412-y

Abstract: 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… read more here.

Keywords: mgo; microscopy; dispersive magnetic; assisted dispersive ... See more keywords
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A powerful combination of quadruple isotope dilution strategy with dispersive magnetic solid phase extraction for the accurate and precise multi-analyte determination of tadalafil, sildenafil, avanafil and vardenafil in human plasma and urine samples using LC-ESI-Tandem MS

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Published in 2020 at "Microchemical Journal"

DOI: 10.1016/j.microc.2019.104302

Abstract: Abstract Trace organic analysis in biological matrices plays a critical role in clinical studies. To achieve a reliable evaluation of clinical practice, many analytical improvements have been introduced to overcome the difficulties/errors in the steps… read more here.

Keywords: magnetic solid; solid phase; dispersive magnetic; isotope dilution ... See more keywords
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Green chemicals-assisted dispersive magnetic solid-phase extraction: a prospect for speciation of Cr (III)/Cr (VI) in environmental water samples

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Published in 2020 at "International Journal of Environmental Analytical Chemistry"

DOI: 10.1080/03067319.2020.1804893

Abstract: In this research, hydrophobic task-specific room temperature ionic liquid (HTSRTIL) as a green modifier was synthesised and electrostatically in-situ immobilised on the magnetic multi-wall carbon nanotube (MMWCNT). This green reusable nano sorbent was employed successfully… read more here.

Keywords: iii; extraction; magnetic solid; dispersive magnetic ... See more keywords
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Ultrathin Broadband Absorber Using Frequency-Selective Surface and Frequency-Dispersive Magnetic Materials

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Published in 2017 at "IEEE Transactions on Antennas and Propagation"

DOI: 10.1109/tap.2017.2748226

Abstract: The bandwidth of frequency-selective surface (FSS)-based absorber decreases when high permittivity material is used to reduce the thickness of the absorber. A solution of this thickness-bandwidth dilemma was presented by using resistive FSS layer and… read more here.

Keywords: frequency selective; frequency; selective surface; fss based ... See more keywords
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Dispersive Magnetic Solid-Phase Extraction as a Novelty Sample Treatment for the Determination of the Main Aflatoxins in Paprika

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Published in 2023 at "Toxins"

DOI: 10.3390/toxins15020160

Abstract: Dispersive magnetic solid-phase extraction (DMSPE) technique is proposed as a new sensitive and effective sample treatment method for the determination of aflatoxins in paprika samples. DMSPE was followed by ultrahigh-performance liquid chromatography and high-resolution mass… read more here.

Keywords: extraction; dispersive magnetic; phase extraction; solid phase ... See more keywords