A dispersive solid phase extraction-based method for chromium(<scp>vi</scp>) analysis using a Zn–Al layered double hydroxide intercalated with <scp>l</scp>-aspartic acid as a dissolvable adsorbent

Leite, Victor dos Santos Azevedo; Constantino, Vera Regina Leopoldo; Izumi, Celly Mieko Shinohara; Tronto, Jairo; Pinto, Francisco de Assis de Carvalho

doi:10.1039/c9nj05771d

Cited by 14 publications

(3 citation statements)

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“…They have many advantages, such as a large and adjustable surface area, excellent selectivity, and increased sensitivity. 35,36 Effective extraction and preconcentration of target analytes from complex sample matrices may be achieved by LDH-based µ-SPE, which also improves the sensitivity and accuracy of subsequent analytical tests by decreasing interference. In line with the principles of green chemistry, LDH-based µ-SPE has a speedy equilibrium, is compatible with different analytical methods, and reduces solvent usage.…”

Section: Introductionmentioning

confidence: 99%

“…The analytical methods of researchers in many different domains may be improved with the help of LDH nanomaterials, which are adaptable tools. 35,37,38 The selection of ZnMnAl LDH over alternative materials reflects a thoughtful consideration of multiple factors, emphasizing the novelty and advantages of our work. Adding Zn 2+ , Mn 2+ , and Al 3+ to the LDH structure has a synergistic effect that makes it better at absorbing metal ions and gives Cu and Ni more strong sites to bind.…”

Section: Introductionmentioning

confidence: 99%

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A New Micro-Solid Phase Extraction Using ZnMnAl LDH Nano-Sorbent For Cu And Ni Determination In Natural Water And Soil

Soylak

2024

At.Spectrosc.

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Layered double hydroxides (LDHs) are a class of materials that may be readily synthesized in a laboratory environment. This work successfully conducted the synthesis of a new nanomaterial (ZnMnAl LDH). The characterization of this material was accomplished utilizing many analytical techniques, including FTIR, XRD, SEM-mapping, and FE-SEM. ZnMnAl LDH was employed to separate and enrich Cu(II) and Ni(II) from soil and water samples. The Cu and Ni ions were eluted from ZnMnAl LDH nanoparticles by using 2 mL of 0.1 mol L −1 of HNO3. The metal ions were quantified using flame atomic absorption spectrometry (FAAS). An investigation was conducted to examine the impact of many analytical factors on the efficiency of metal ions' extraction. These parameters include pH, sorbent amount, eluent volume, eluent concentration, sample volume, and possible interfering ions. The detection limits for Cu(II) and Ni(II) were found to be 0.74 and 0.52 μg kg −1 , respectively. In addition, the relative standard deviation (RSD%) for Cu(II) is 3.8 and for Ni(II) is 1.9. The linear range for both analytes is 50-1000 μg L −1 , and the preconcentration factor is 15 for both. The method's validation was verified by the analysis of certified reference materials, namely BCR-505 estuarine water and GBW07429 (GSS-15) soil. For soil samples, Ni(II) and Cu(II) concentrations vary from 9.8 to 62.8 mg kg -1 and 9.9 to 73.5 mg kg -1 , respectively. The technique described was used to quantify trace concentrations of copper (Cu) and nickel (Ni) in samples of both natural water and soil.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A New Micro-Solid Phase Extraction Using ZnMnAl LDH Nano-Sorbent For Cu And Ni Determination In Natural Water And Soil

Soylak

2024

At.Spectrosc.

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“…The maximum permitted level of Cr (VI) in the drinking water is 0.05 ppm and 0.1 ppm as recommended by WHO and EPA, respectively 4 . Drinking Cr (VI) contaminated water in excess of the allowed limit may result in lung, kidney, and gastrointestinal cancer, dermatitis, and respiratory tract disease 5 . Several methods have been used for the removal of hexavalent chromium, including precipitation, ion exchange, adsorption, and reduction of Cr (VI) to Cr (III) 6 .…”

Section: Introductionmentioning

confidence: 99%

Highly efficient removal of hexavalent chromium using hexagonal disc shaped barium hydrogen phosphate

Gupta

Ben

2021

Env Prog and Sustain Energy

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Novel hexagonal disc‐shaped barium hydrogen phosphate was synthesized and analyzed by X‐ray diffraction, X‐ray photoelectron spectroscope, scanning electron microscope, transmission electron microscopy, thermogravimetric analysis, Brunauer–Emmett–Teller, and FTIR. The effects of adsorbent dose, adsorption time, initial concentration, initial pH, temperature, and sodium chloride on hexavalent chromium, Cr (VI), adsorption by BaHPO4 were studied. Effective Cr (VI) adsorption capacity was observed in the pH range of 4–5. The temperature‐dependent adsorption data showed sorption is endothermic and spontaneous in nature. The adsorption occurs via electrostatic interaction and is described by second order kinetic, and the adsorption isotherm was best fitted with the Langmuir model. The equilibrium adsorption capacity and maximum adsorption capacity were found to be 128.7 mg/g and 146.8 mg/g, respectively at room temperature and pH 6. Adsorbent is stable, recyclable, environmentally friendly, and can be produced on a large scale at a low cost. This can be utilized for the treatment of Cr (VI) contaminated water.

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In-tube stir bar sorptive extraction based on 3-aminopropyl triethoxysilane surface-modified Ce-doped ZnAl layered double hydroxide thin film for determination of nonsteroidal anti-inflammatory drugs in saliva samples

et al. 2020

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A dispersive solid phase extraction-based method for chromium(vi) analysis using a Zn–Al layered double hydroxide intercalated with l-aspartic acid as a dissolvable adsorbent

Abstract: An analytical method for extraction and preconcentration of Cr(vi) in water with DSPE using a Zn–Al LDH intercalated with l-aspartic acid as a dissolvable adsorbent.

Cited by 14 publications

References 42 publications

A New Micro-Solid Phase Extraction Using ZnMnAl LDH Nano-Sorbent For Cu And Ni Determination In Natural Water And Soil

A New Micro-Solid Phase Extraction Using ZnMnAl LDH Nano-Sorbent For Cu And Ni Determination In Natural Water And Soil

Highly efficient removal of hexavalent chromium using hexagonal disc shaped barium hydrogen phosphate

In-tube stir bar sorptive extraction based on 3-aminopropyl triethoxysilane surface-modified Ce-doped ZnAl layered double hydroxide thin film for determination of nonsteroidal anti-inflammatory drugs in saliva samples

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