A new coprecipitation method without carrier element for separation and preconcentration of some metal ions at trace levels in water and food samples

Gouda, Ayman A.

doi:10.1016/j.talanta.2015.09.005

Cited by 50 publications

(19 citation statements)

References 54 publications

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“…It is known that toxic metal ions have harmful effects on the living world because of being even toxic at trace concentrations . Their biodegradability in the environment is impossible and they can accumulate in tissues if taken in by the human body.…”

Section: Introductionmentioning

confidence: 99%

Solid phase extraction of trace level Ag(I) using Coriolus versicolor immobilized magnetic nanoparticles and its determination by ICP‐OES

Yalçın

2019

Env Prog and Sustain Energy

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In the recent past, biosorbents of biological origin such as bacteria, algae, and fungus have found a specific application in the solid phase extraction as an alternative column packing material. It is feasible to use them in the column after their immobilization onto a convenient support material. In the present work, alternative biosorbent Coriolus versicolor immobilized γ‐Fe2O3 nanoparticles (NPs) were prepared for the preconcentration of trace amounts of Ag(I) in environmental samples. The surface structure of C. versicolor immobilized γ‐Fe2O3 NPs were identified via the Fourier transform infrared spectroscopy, the scanning electron microscope, and the energy dispersive X‐ray. Experimental parameters were investigated. The following elution with 1 mol/L HCl, Ag(I) was measured by an inductively coupled plasma optical emission spectrometer. The limit of detection, limit of quantitation, and preconcentration factor were achieved as 0.0018, 0.0062 ng/ml, and 100, respectively. The biosorption capacity of the biosorbent was found as 31.7 mg/g. In addition, γ‐Fe2O3 NPs without C. versicolor were tested and the results showed that the recovery value of Ag(I) was lower than 25%. The efficiency of the method was tested through recovery measurements of certificated reference materials and high recoveries (≥95%) with low‐relative standard deviation were obtained. Additionally, it was successfully used for the quantification recovery of Ag(I) in spiked environmental samples. © 2019 American Institute of Chemical Engineers Environ Prog, 38:e13151, 2019

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Section: Introductionmentioning

confidence: 99%

Solid phase extraction of trace level Ag(I) using Coriolus versicolor immobilized magnetic nanoparticles and its determination by ICP‐OES

Yalçın

2019

Env Prog and Sustain Energy

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“…The development of different methods to separate and enrich trace Cd 2+ from different samples, such as solid-phase extraction [2,9,10], liquid-phase extraction [11][12][13][14][15], cloud point extraction [16][17][18], and coprecipitation [19][20][21], has recently been documented in the literature. The ionic liquids (ILs) were used as environmentally friendly solvents because of their excellent physicochemical characteristics such as frivolous vapor pressure, economical, green, selective solubility, thermal stabilities, and good extracts for various organic compounds and metal ions [22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

A Green Vortex-Assisted Ionic Liquid-Based Dispersive Liquid–liquid Microextraction Method for Preconcentration and Determination of Trace Cadmium in Food Samples

Sheikh

Atwa

Abdullah

et al. 2019

Asian J Pharm Clin Res

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Objective: Green, easy, and sensitive vortex-assisted ionic liquid-based dispersive liquid–liquid microextraction technique (VA-IL-DLLME) was developed to preconcentrate and determine trace quantities of cadmium (Cd2+) ions from real food samples, before detection by flame atomic absorption spectrometry. Methods: The proposed technique base on the utilization of IL (1-hexyl-3-methylimidazolium tris(pentafluoroethyl)trifluorophosphate) as an extraction solvent for Cd2+ ions after the complexation with 2-(2’-benzothiazolylazo) chromotropic acid at pH 8.0. The impact of different analytical parameters on microextraction efficiency was investigated. The validation of the proposed procedure was verified by the test of certified reference material (SRM spinach leaves 1570A) applying the standard addition method. Results: In the range of 1.0–300 μg/L, the calibration graph was linear. Limit of detection, preconcentration factor and the relative standard deviation (RSD%, 25, 150, and 250 μg/L, n=5) were 0.2 μg/L, 100, and 2.0–3.2%, respectively. Conclusion: Green, VA-IL-DLLME method was developed and applied to preconcentrate and determine of trace quantities of Cd2+ in real food samples with satisfactory results. The obtained recovery values showed good agreement with the certified values.

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“…Food safety is an important concern and has been paid considerable attention worldwide. Common problems on food safety include foodborne pathogens (Mandal et al, 2011;Shan et al, 2015), mycotoxins (Kabak et al, 2006;Burmistrova et al, 2014), metal ions (Daşbaşı et al, 2016;Gouda, 2016), and antibiotics (Taranova et al, 2015;Tlili et al, 2016). Several hazardous substances may exist in one food sample.…”

Section: Introductionmentioning

confidence: 99%

Lateral flow immunoassay integrated with competitive and sandwich models for the detection of aflatoxin M1 and Escherichia coli O157:H7 in milk

Wang

Peng

Liu

et al. 2018

Journal of Dairy Science

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Pathogens, mycotoxins, or antibiotics may exist in a food sample. Micro- and macromolecular substances must be detected quickly. A rapid and convenient lateral flow immunoassay (LFI) integrated with competitive and sandwich models was developed to detect micro- and macromolecular substances. In this study, aflatoxin M (AFM) and Escherichia coli O157:H7 were selected as the micro- and macromolecular substances, respectively. Two test lines in the LFI test strip were evaluated to detect AFM1 and E. coli O157:H7 by competitive and sandwich models. Results showed that the limits of detection for detecting AFM1 and E. coli O157:H7 were 50 pg·mL and 1.58 × 10 cfu·mL, respectively. The whole assay time was 30 min. The recoveries of gold nanoparticle-LFI ranged from 78.0 to 111.6% with coefficients of variation in the range of 3.9 to 8.5% for the detection of AFM. For the detection of E. coli O157:H7, the range of recoveries was from 70.1 to 89.6% with coefficients of variation ranging from 4.9 to 13.0%. This study not only tested sensitivity and specificity, but also was a systematic study of location of 2 test lines of the LFI test strip integrated with competitive and sandwich models.

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A new coprecipitation method without carrier element for separation and preconcentration of some metal ions at trace levels in water and food samples

Cited by 50 publications

References 54 publications

Solid phase extraction of trace level Ag(I) using Coriolus versicolor immobilized magnetic nanoparticles and its determination by ICP‐OES

Solid phase extraction of trace level Ag(I) using Coriolus versicolor immobilized magnetic nanoparticles and its determination by ICP‐OES

A Green Vortex-Assisted Ionic Liquid-Based Dispersive Liquid–liquid Microextraction Method for Preconcentration and Determination of Trace Cadmium in Food Samples

Lateral flow immunoassay integrated with competitive and sandwich models for the detection of aflatoxin M1 and Escherichia coli O157:H7 in milk

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