Determination of chromium (VI) by dispersive solid-phase extraction using dissolvable Zn-Al layered double hydroxide intercalated with l-Alanine as adsorbent

Leite, Victor dos Santos Azevedo; Jesus, Brenda Gabriela Lima de; Duarte, Valber Georgio de Oliveira; Constantino, Vera Regina Leopoldo; Izumi, Celly Mieko Shinohara; Tronto, Jairo; Pinto, Francisco de Assis de Carvalho

doi:10.1016/j.microc.2019.01.063

Cited by 41 publications

(6 citation statements)

References 35 publications

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“…A comparison of proposed methods and some of the published microextraction methods for extraction and determination of Cr ions are summarized in Table 4. The accuracy and LOD values of the present method, for the determination of chromium ions, are comparable to those reported in the literature [25][26][27][28][29][30][31][32].…”

Section: Validation Of Analytical Methodssupporting

confidence: 85%

Chromium desalinization using novel chitosan functionalized iron oxide- biochar composites: Analysis, synthesis, characterization and adsorption performance

Choudhary,

Singh Poonia

2024

Anal. Method Environ. Chem. J.

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In the study, chitosan functionalized iron oxide incorporated with peanut shell biomass was prepared for potential adsorption of chromium (VI) from an aqueous media. The prepared material was characterized by modern spectroscopic methods for confirming the successful embedding. The adsorption experiments were conducted in batch systems. The experimental data showed robust removal of chromium supported by kinetic and equilibrium studies. The sorption data exhibited a strong agreement with the pseudo-second-order kinetics model, further confirming conformity with the Langmuir isotherm model. Adsorption studies were taken to find the effects of pH and time, reusability, ionic strength and presence of coexisting ions. The maximum sorption capacity was achieved as 14.28 mg g-1 at pH 4 and the optimum contact time was 40 minutes. The background electrolytes have much less effect on uptake efficiency and this green adsorbent can be utilized for up to four cycles. Additionally, a systematic approach was employed to ensure the precision and accuracy of the spectroscopic method. Calibration was linear in the range from 0.5 to 6.0 μg L-1 (R2 > 0.99). The limits of detection (LOD) and quantification (LOQ) were 0.65 μg L-1 and 2.16 μg L-1, respectively. The relative standard deviation (RSD) was 7.62 % (n=7).

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Section: Validation Of Analytical Methodssupporting

confidence: 85%

Chromium desalinization using novel chitosan functionalized iron oxide- biochar composites: Analysis, synthesis, characterization and adsorption performance

Choudhary,

Singh Poonia

2024

Anal. Method Environ. Chem. J.

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“…1 c. The spectrum of ZnAl-LDH-NO 3 presents bands at 479 and 563 cm −1 belonged to the lattice stretching vibrations of the brucite octahedral layers, i.e., Al –O–Mg, Zn–OH and Al–OH [ 26 , 75 ]. Also, the band at 1060 and 713 cm −1 are credited to the nitrate stretching vibrations [ 75 , 76 ]. Comparing to the Raman analysis of parent ZnAl-LDH-NO 3 sample, the Raman spectrum of ZnAl-LDH-V 10 O 28 nanohybrid material ( Fig.…”

Section: Resultsmentioning

confidence: 99%

Microwave-assisted hydrothermal fabrication of hierarchical-stacked mesoporous decavanadate-intercalated ZnAl nanolayered double hydroxide to exterminate different developmental stages of Trichinella spiralis and Schistosoma mansoni in-vitro

Darwish¹,

Mahmoud²,

Bayaumy³

2023

Heliyon

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“…A unique property of these materials compared to other sorbent types is their high solubility in acid, which led to the development of extraction methods in which the desorption step is replaced entirely by LDH-based sorbent dissolution, thus reducing the expenditure of organic solvents. An additional benefit of replacing desorption in the analytical procedure is minimizing analyte loss, leading to highly accurate recovery [ 57 , 58 ].…”

Section: Sorbents Based On Layered Double Hydroxidesmentioning

confidence: 99%

Recent Materials Developed for Dispersive Solid Phase Extraction

Ścigalski¹,

Kosobucki²

2020

Molecules

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Solid phase extraction (SPE) is an analytical procedure developed with the purpose of separating a target analyte from a complex sample matrix prior to quantitative or qualitative determination. The purpose of such treatment is twofold: elimination of matrix constituents that could interfere with the detection process or even damage analytical equipment as well as enriching the analyte in the sample so that it is readily available for detection. Dispersive solid phase extraction (dSPE) is a recent development of the standard SPE technique that is attracting growing attention due to its remarkable simplicity, short extraction time and low requirement for solvent expenditure, accompanied by high effectiveness and wide applicability. This review aims to thoroughly survey recently conducted analytical studies focusing on methods utilizing novel, interesting nanomaterials as dSPE sorbents, as well as known materials that have been only recently successfully applied in dSPE techniques, and evaluate their performance and suitability based on comparison with previously reported analytical procedures.

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Determination of chromium (VI) by dispersive solid-phase extraction using dissolvable Zn-Al layered double hydroxide intercalated with l-Alanine as adsorbent

Cited by 41 publications

References 35 publications

Chromium desalinization using novel chitosan functionalized iron oxide- biochar composites: Analysis, synthesis, characterization and adsorption performance

Chromium desalinization using novel chitosan functionalized iron oxide- biochar composites: Analysis, synthesis, characterization and adsorption performance

Microwave-assisted hydrothermal fabrication of hierarchical-stacked mesoporous decavanadate-intercalated ZnAl nanolayered double hydroxide to exterminate different developmental stages of Trichinella spiralis and Schistosoma mansoni in-vitro

Recent Materials Developed for Dispersive Solid Phase Extraction

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