NDLI: Trace analysis of Pb(II) in milk samples by Fe3O4@SiO2@[email protected] nanoparticles as an unprecedented adsorbent for magnetic dispersive solid phase extraction

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The Journal of Engineering

Trace analysis of Pb(II) in milk samples by Fe3O4@SiO2@[email protected] nanoparticles as an unprecedented adsorbent for magnetic dispersive solid phase extraction

Content Provider	IET Digital Library
Author	Ramezanpour, Mohtaram Raeisi, Shahram Naghizadeh Shahidi, Seyed Ahmad Ramezanpour, Sorour
Abstract	In the present work, a magnetic dispersive solid-phase extraction method followed by flame atomic absorption spectrometry was used for extraction, preconcentration and determination of trace amounts of Pb(II) in milk samples. Fe3O4@SiO2@3-chloropropyltriethoxysilane@o-phenylendiamine nanoparticles were synthesised and used as the adsorbent in the extraction procedure. The effective parameters of the extraction efficiency comprising pH of the sample solution, sorbent amount, extraction time, acidic concentration of the eluent and desorption time were optimised using a face-centred central composite design. Under the optimal conditions, the applied method offered suitable linearity in the range of 2.0–250 ng mL−1, the limit of detection as low as 0.11 ng mL−1, and high preconcentration factor of 66. The precision of the proposed method was evaluated by calculating the intra-day and inter-day relative standard deviation, which were <3.4 and 5.5%, respectively. The applicability of the method in real sample analysis was tested by analysing bovine milk samples. The relative recoveries in the range of 81.6–97.2% showed the suggested method is of appropriate accuracy in real sample analysis.
Starting Page	390
Ending Page	395
Page Count	6
Volume Number	15
e-ISSN	17500443
Issue Number	Issue 6, May (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/mnl/15/6
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/mnl.2019.0577
Journal	Micro & Nano Letters
Publisher Date	2020-05-27
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Adsorption Atomic Absorption Spectroscopy Bovine Milk Samples Chromatography Dairy Products Desorption Desorption Time Eluent Time Engineering Material Extraction Efficiency Extraction Procedure Face-centred Central Composite Design Flame Atomic Absorption Spectrometry Food Industry Food Safety Health And Safety Aspects Industrial Processes Magnetic Dispersive Solid Phase Extraction Nanoparticle Organic Compound PH Preconcentration Product And Commodities Sample Analysis Solid-phase Extraction Method Trace Analysis Unprecedented Adsorbent
Content Type	Text
Resource Type	Article

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