Solid phase extraction and trace monitoring of cadmium ions in environmental water and food samples based on modified magnetic nanoporous silica

Omidi, Fariborz; Behbahani, Mohammad; Bojdi, Majid Kalate; Shahtaheri, Seyed Jamaled­din

doi:10.1016/j.jmmm.2015.07.093

Cited by 89 publications

(19 citation statements)

References 31 publications

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“…The solid phase extraction method is applied in three ways: rinsing technique, semi-permeable retaining disc filtration technique and column technique [30][31][32][33][34][35].…”

Section: Solid Phase Extractionmentioning

confidence: 99%

New Methods in the Synthesis of (Meth)Acrylamides and Application Chelating Resin for Determination of Trace Metals in Certified Reference Materials and Waters

Soykan¹

2021

Trace Metals in the Environment - New Approaches and Recent Advances

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The waste of trace metals are led the pollutions of water, soil and air. That's why the accurate and sensitive identification of amount of trace metals in food samples and environment are gained importance in analytical chemistry because of their toxicity to human health. Besides, the direct determination of trace metals, presented at very low concentration especially in real samples, is difficult. In this content, before determination of trace metals by instrumental methods can be achieved successfully using separation/preconcentration procedures. The different synthesized chelating polymer resin adsorbents are successfully used for the SPE of trace metals. The trace metals, such as Cu, Cr, Co, Mn, Zn and Fe, are necessary for human health, when it has been taken at certain limits. But, the trace metals, such as Hg, Cd, Pb, Ni and As are toxic metals for the human body. About this, there are studies on the determination of trace elements and mineral in food samples and environment. In this study, new methods in the synthesis of (meth)acrylamides and use as a sorbent in the trace metals extraction was identified.

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“…The solid phase extraction method is applied in three ways: rinsing technique, semi-permeable retaining disc filtration technique and column technique [30][31][32][33][34][35].…”

Section: Solid Phase Extractionmentioning

confidence: 99%

New Methods in the Synthesis of (Meth)Acrylamides and Application Chelating Resin for Determination of Trace Metals in Certified Reference Materials and Waters

Soykan¹

2021

Trace Metals in the Environment - New Approaches and Recent Advances

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“…The quantitative extraction of the target analytes from a given solution is highly affected by the adsorption capacity of the adsorbent (Omidi et al 2015). The maximum adsorption capacity of GO-TTC for the extraction of the analytes was evaluated by a batch equilibrium technique described in the literature (Parham et al 2009;Ghanemi et al 2011).…”

Section: Sorption Capacitymentioning

confidence: 99%

Graphene oxide nanosheets modified with trithiocyanuric acid for extraction and enrichment of Pb (II) and Cu (II) ions in seawater

Mosavi

Ghanemi

Nickpour

2018

Water & Environment J

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Trithiocyanuric acid (TTC) is a robust chelating ligand for extracting divalent and univalent heavy metals from water samples. In this method, graphene oxide nanosheets (GO) was modified with TTC, to produce a new nano‐adsorbent (GO‐TTC), for extraction and preconcentration of Pb (II) and Cu (II) ions from seawater samples. The concentrated analytes were measured by a flame atomic absorption spectrometry. The detection limits of the method for Pb (II) and Cu (II) ions were 0.32 ng/mL and 0.13 ng/mL, respectively. The relative standard deviations of analytes for six successive extractions were below 1.64%. The maximum adsorption capacity of GO‐TTC for Pb (II) and Cu (II) ions was 750 µg/g and 460 µg/g, respectively. The recoveries of the spiked analytes in artificial and natural seawater samples were above 90%, pointing out that the method is not affected by the major coexisting ions in seawater matrices.

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“…However, the small particle size of mesoporous silica materials is one of their drawbacks, which makes their separation and recovery from aqueous solution difficult. This problem has been alleviated by the combination of mesoporous silica materials with magnetic nanoparticles . These new class of sorbents called magnetic mesoporous silica (MMS) have the advantages of enhanced surface area, high adsorption capacity, as well as the ease of separation.…”

Section: Introductionmentioning

confidence: 99%

Preparation of magnetic mesoporous silica composite for the solid‐phase microextraction of diazinon and malathion before their determination by high‐performance liquid chromatography

Bazmandegan‐Shamili

Shabani

Dadfarnia

et al. 2017

J of Separation Science

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A novel magnetic mesoporous silica material was synthesized and used as the sorbent for the magnetic solid-phase microextraction of diazinon and malathion before their quantification by high-performance liquid chromatography with UV detection. The sorbent was synthesized by a surfactant-templated one-pot sol-gel procedure using SiO -coated Fe O as the magnetic support, cetyltrimethylammonium bromide as the template and tetraethyl orthosilicate as the silicon source. The characteristics of the prepared sorbent were investigated using Fourier transform infrared spectroscopy, scanning electron microscopy, and X-ray diffraction. The sorbent exhibited a high maximum adsorption capacity of 19.2 and 9.4 mg/g for diazinon and malathion, respectively. The parameters affecting the microextraction were optimized by the MultiSimplex method. Under the optimized conditions, the calibration graphs were linear in the concentration ranges of 0.3-50.0 and 0.5-50 μg/L with the limits of detection of 0.09 and 0.14 μg/L for diazinon and malathion, respectively. The relative standard deviations (n = 5) at a concentration level of 10.0 μg/L of analytes were less than 2.5 and 4% for intra and interday, respectively. The developed method was successfully used for the determination of diazinon and malathion in apple, tomato, cucumber, tap water, and well water samples.

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Solid phase extraction and trace monitoring of cadmium ions in environmental water and food samples based on modified magnetic nanoporous silica

Cited by 89 publications

References 31 publications

New Methods in the Synthesis of (Meth)Acrylamides and Application Chelating Resin for Determination of Trace Metals in Certified Reference Materials and Waters

New Methods in the Synthesis of (Meth)Acrylamides and Application Chelating Resin for Determination of Trace Metals in Certified Reference Materials and Waters

Graphene oxide nanosheets modified with trithiocyanuric acid for extraction and enrichment of Pb (II) and Cu (II) ions in seawater

Preparation of magnetic mesoporous silica composite for the solid‐phase microextraction of diazinon and malathion before their determination by high‐performance liquid chromatography

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