scholarly journals Biomass-Derived Adsorbent for Dispersive Solid-Phase Extraction of Cr(III), Fe(III), Co(II) and Ni(II) from Food Samples Prior to ICP-MS Detection

2021 ◽  
Vol 11 (17) ◽  
pp. 7792
Author(s):  
Taghrid S. Alomar ◽  
Mohamed A. Habila ◽  
Najla AlMasoud ◽  
Zeid A. Alothman ◽  
Mohamed Sheikh ◽  
...  
Keyword(s):  
Solid Phase ◽  
Low Cost ◽  
Extraction Process ◽  
Amorphous Structure ◽  
Food Samples ◽  
Hydroxyl Groups ◽  
Ms Detection ◽  
Efficient Performance ◽  
Icp Ms ◽  
Separation And Preconcentration

A biomass-derived adsorbent was simply prepared and applied as efficient and low-cost solid-phase supports. The adsorbent material was characterized by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), surface area analysis and Fourier transform infrared (FTIR) spectroscopy. The amorphous structure of the prepared adsorbent was indicated from the XRD. The prepared adsorbent exhibited surface functional groups such as carbonyl and hydroxyl groups, which enhance the application of DSPE. An accurate separation and preconcentration of Cr(III), Fe(III), Co(II) and Ni(II) prior to ICP-MS detection was achieved using the biomass-derived adsorbent. The extraction process was performed at pH 4 using 1 mL of 0.5 N nitric acid for elution and recovery of ions. The prepared biomass-derived adsorbent showed efficient performance for extraction application, exhibiting a preconcentration factor of 50 and LODs of 1.4, 2.4, 1.9 and 3.0 µg.L−1 for Cr(III), Fe(III), Co(II) and Ni(II), respectively, while the LOQs were reported as 4.1, 7.3, 5.7 and 8.9 µg.L−1 for Cr(III), Fe(III), Co(II) and Ni(II), respectively. The DSPE procedure presented was successfully applied to the determination of the Cr(III), Fe(III), Co(II) and Ni(II) contamination in some food samples.

A sequential solid phase microextraction system coupled with inductively coupled plasma mass spectrometry for speciation of inorganic arsenic

2014 ◽  
Vol 6 (12) ◽  
pp. 4205-4211 ◽  
Author(s):  
Peng Li ◽  
Xiao-qin Zhang ◽  
Yi-jun Chen ◽  
Hong-zhen Lian ◽  
Xin Hu
Keyword(s):  
Mass Spectrometry ◽  
Inductively Coupled Plasma ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Inorganic Arsenic ◽  
Inductively Coupled ◽  
Monolithic Capillary Columns ◽  
Icp Ms ◽  
Separation And Preconcentration ◽  
Plasma Mass Spectrometry

A sequential solid phase microextraction (SPME) system consisting of two monolithic capillary columns was developed for simultaneous separation and preconcentration of inorganic arsenic, followed by inductively coupled plasma mass spectrometry (ICP-MS) detection.

Solid-Phase Extraction of Copper(II) in Water and Food Samples Using Silica Gel Modified with bis(3-Aminopropyl)amine and Determination by Flame Atomic Absorption Spectrometry

2014 ◽  
Vol 97 (4) ◽  
pp. 1137-1142 ◽  
Author(s):  
Duygu Cagirdi ◽  
Hüseyin Altundag ◽  
Mustafa Imamoglu ◽  
Mustafa Tuzen
Keyword(s):  
Atomic Absorption ◽  
Silica Gel ◽  
Solid Phase ◽  
Certified Reference Materials ◽  
Volume Flow Rate ◽  
Transition Metal Ions ◽  
Food Samples ◽  
Flame Atomic Absorption ◽  
Separation And Preconcentration

Abstract A simple and selective separation and preconcentration method was developed for the determination of Cu(II) ions. This method is based on adsorption of Cu(II) ions from aqueous solution on a bis(3-aminopropyl)amine modified silica gel column and flame atomic absorption spectrometric determination after desorption. Various analytical parameters such as pH, type of eluent solution and its volume, flow rate of sample and eluent, and sample volume were optimized. Effects of some cation, anion, and transition metal ions on the recoveries of Cu(II) ions were also investigated. Cu(II) ions were quantitatively recovered at pH 6; 5.0 mL of 2 M HCl was used as the eluent. The preconcentration factor was found to be 150. The LOD was 0.12 μg/L for Cu(II). The accuracy of the method was confirmed by analysis of Tea Leaves (INCT-TL-1) and Fish Protein (DORM-3) certified reference materials. The optimized method was applied to various water and food samples for the determination of Cu(II).

Silica-supported pyrolyzed lignin for solid-phase extraction of rare earth elements from fresh and sea waters followed by ICP-MS detection

2018 ◽  
Vol 410 (29) ◽  
pp. 7635-7643 ◽  
Author(s):  
Federica Maraschi ◽  
Andrea Speltini ◽  
Tiziana Tavani ◽  
Maria Grazia Gulotta ◽  
Daniele Dondi ◽  
...  
Keyword(s):  
Rare Earth ◽  
Solid Phase Extraction ◽  
Rare Earth Elements ◽  
Solid Phase ◽  
Phase Extraction ◽  
Ms Detection ◽  
Icp Ms

Magnetic Graphene Oxide as an Efficient Adsorbent for the Separation and Preconcentration of Cu(II), Pb(II), and Cd(II) from Environmental Samples

2017 ◽  
Vol 100 (5) ◽  
pp. 1544-1550 ◽  
Author(s):  
Mustafa Soylak ◽  
Demet Acar ◽  
Erkan Yilmaz ◽  
Sherif A El-Khodary ◽  
Mohamed Morsy ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Matrix Effects ◽  
Solid Phase ◽  
Certified Reference Materials ◽  
Food Samples ◽  
Magnetic Graphene Oxide ◽  
Magnetic Graphene ◽  
Separation And Preconcentration ◽  
Analyte Content ◽  
Efficient Adsorbent

Abstract The separation and preconcentration of copper(II), lead(II), and cadmium(II) ions on magnetic graphene oxide (MGO) by solid-phase extraction was carried out. Quantitative recovery was obtained by adsorption of analytes on MGO at pH 6 and elution of 3 M HNO3 in 10% acetone. To optimize the presented method, the effects of various parameters—including pH, eluent conditions, and vortex time—were examined. Matrix effects were also investigated. Mean recoveries of the analytes were between 95and 105%. The proposed method was validated by applying it to certified reference materials. Addition and recovery tests were also performed. The method wasapplied to verify the analyte content of several water and food samples.

Automatic solid phase extraction of cadmium exploiting a multicommutated flow system previous ICP-MS detection: Application to tobacco samples

2017 ◽  
Vol 132 ◽  
pp. 107-111 ◽  
Author(s):  
Angélica Cervantes ◽  
Rogelio Rodríguez ◽  
Laura Ferrer ◽  
Víctor Cerdà ◽  
Luz O. Leal
Keyword(s):  
Solid Phase Extraction ◽  
Flow System ◽  
Solid Phase ◽  
Phase Extraction ◽  
Ms Detection ◽  
Icp Ms

scholarly journals Tailored Polymer-Based Selective Extraction of Lipid Mediators from Biological Samples

Metabolites ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 539
Author(s):  
Yohannes Abere Ambaw ◽  
Sandra Rinne Dahl ◽  
Yan Chen ◽  
Tyge Greibrokk ◽  
Elsa Lundanes ◽  
...  
Keyword(s):  
Biological Samples ◽  
Solid Phase ◽  
Low Cost ◽  
Selective Extraction ◽  
Extraction Process ◽  
Optimal Recovery ◽  
Lipid Mediators ◽  
Tissue Samples ◽  
Polymeric Sorbents ◽  
Mouse Tissues

Lipid mediators, small molecules involved in regulating inflammation and its resolution, are a class of lipids of wide interest as their levels in blood and tissues may be used to monitor health and disease states or the effect of new treatments. These molecules are present at low levels in biological samples, and an enrichment step is often needed for their detection. We describe a rapid and selective method that uses new low-cost molecularly imprinted (MIP) and non-imprinted (NIP) polymeric sorbents for the extraction of lipid mediators from plasma and tissue samples. The extraction process was carried out in solid-phase extraction (SPE) cartridges, manually packed with the sorbents. After extraction, lipid mediators were quantified by liquid chromatography–tandem mass spectrometry (LC–MSMS). Various parameters affecting the extraction efficiency were evaluated to achieve optimal recovery and to reduce non-specific interactions. Preliminary tests showed that MIPs, designed using the prostaglandin biosynthetic precursor arachidonic acid, could effectively enrich prostaglandins and structurally related molecules. However, for other lipid mediators, MIP and NIP displayed comparable recoveries. Under optimized conditions, the recoveries of synthetic standards ranged from 62% to 100%. This new extraction method was applied to the determination of the lipid mediators concentration in human plasma and mouse tissues and compared to other methods based on commercially available cartridges. In general, the methods showed comparable performances. In terms of structural specificity, our newly synthesized materials accomplished better retention of prostaglandins (PGs), hydroxydocosahexaenoic acid (HDoHE), HEPE, hydroxyeicosatetraenoic acids (HETE), hydroxyeicosatrienoic acid (HETrE), and PUFA compounds, while the commercially available Strata-X showed a higher recovery for dihydroxyeicosatetraenoic acid (diHETrEs). In summary, our results suggest that this new material can be successfully implemented for the extraction of lipid mediators from biological samples.

Evaluation of Graphene as a Solid-Phase Extraction Sorbent for the Preconcentration and Determination of Trace Amounts of Nickel in Food Samples Prior to Flame Atomic Absorption Spectrometry

2015 ◽  
Vol 98 (3) ◽  
pp. 822-827 ◽  
Author(s):  
Bahram Ebrahimi ◽  
Soleiman Bahar ◽  
Seyde Elham Moedi
Keyword(s):  
Atomic Absorption ◽  
Solid Phase ◽  
Low Cost ◽  
Absorption Spectrometry ◽  
Sample Volume ◽  
Food Samples ◽  
Flame Atomic Absorption ◽  
Determination Of Nickel ◽  
Spe Method

Abstract A sensitive and low cost SPE method for the extraction, preconcentration, and flame atomic absorption spectrometric determination of nickel at ng/mL levels is described. Parameters governing the extraction efficiency including pH of the solution, eluent type, sample volume, and matrix ions were investigated for optimization of the presented procedure. The enhancement factor was calculated as 96.5. The calibration curve was linear with R2 of 0.999 in the concentration range from 2 to 200 ng/mL. The RSD was 5.35% (n = 7), the LOD was 0.588 ng/mL, and relative recoveries from vegetable samples ranged between 99 and 109.5%.

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