Electrochemically deposition of ionic liquid modified graphene oxide for circulated headspace in-tube solid phase microextraction of naphthalene from honey samples followed by on-line liquid chromatography analysis

Seidi, Shahram; Abolhasani, Hadis; Razeghi, Yasaman; Shanehsaz, Maryam; Manouchehri, Mahshid

doi:10.1016/j.chroma.2020.461486

Cited by 17 publications

(6 citation statements)

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“…The calibration plot was obtained by applying various concentrations, and it was found linear between 0.010 and 2.0 mg/L with a calibration equation of y = 0.0482 + 0.003 and a regression coefficient of 0.9900. A PF value of 8.5 was calculated by considering the ratio of the slopes of calibration plots obtained using several standard solutions after and before performing the extraction procedure . Method precision was studied by calculating intraday RSD% (relative standard deviation) and interday RSD% at two concentration levels of 0.05 and 0.20 mg/L.…”

Section: Methods Validationmentioning

confidence: 89%

“…Under the optimized conditions, to evaluate the adsorbent efficiency for Cr(VI) determination in blood samples, the analytical efficacy was investigated on the basis of detection (LOD) and quantification (LOQ) limits, linearity, preconcentration factor (PF), and repeatability. The lowest distinguishable signal of the analyte compared to noise (S/N of 3.0) was considered as the LOD. , The LOQ was defined as the lowest concentration of the linear range . Accordingly, an LOD of 0.003 mg/L and LOQ of 0.010 mg/L were obtained.…”

Section: Methods Validationmentioning

confidence: 99%

“…The lowest distinguishable signal of the analyte compared to noise (S/N of 3.0) was considered as the LOD. 58,59 The LOQ was defined as the lowest concentration of the linear range. 58 Accordingly, an LOD of 0.003 mg/L and LOQ of 0.010 mg/L were obtained.…”

Section: Methods Validationmentioning

confidence: 99%

“…A PF value of 8.5 was calculated by considering the ratio of the slopes of calibration plots obtained using several standard solutions after and before performing the extraction procedure. 59 Method precision was studied by calculating intraday RSD% (relative standard deviation) and interday RSD% at two concentration levels of 0.05 and 0.20 mg/L. At 0.05 mg/L, the intra-and interday RSD%s were found as 2.9% and 3.4%, respectively.…”

Section: Methods Validationmentioning

confidence: 99%

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Efficient Ion Separation from Environmental and Biological Samples Using a Novel Sorbent Based on Ni-Substituted ZIF-67: Optimization, Equilibrium, Kinetic, and Thermodynamic Study

Zakernezhad

Seidi

Manouchehri

2021

Ind. Eng. Chem. Res.

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After routine alkali treatment of industrial wastewaters, a subsequent purification step is required before discharging the resulting effluent due to the remaining trace amount of chromium(VI) at milligram per liter levels. In the present study, a simple one-step synthesis was carried out to fabricate a new adsorbent of Ni x Co y ZIF-67 for adsorption and removal of wastewaters containing chromium(VI) efficiently. To find optimum adsorption conditions of chromium(VI), the sample pH effect, initial concentration of chromium(VI), temperature, contact time, and adsorbent amount were examined. At 298 K, an adsorption capacity of 30.3 mg/g was calculated. Analyzing the mechanism of removal indicated that the chromium(VI) uptake by Ni x Co y ZIF-67 fits with the Langmuir and Dubinin–Radushkevich isotherms well and follows a pseudo-second-order kinetic approach. Also, a positive ΔG and negative ΔH and ΔS indicated adsorption that is endothermic and occurs spontaneously. Electrostatic attractions of chromium(VI) anions by the positively charged surface of the adsorbent and ion exchange with the hydroxyl groups of the adsorbent surface can be ascribed as the mechanism of adsorption. Under the optimized conditions, the detection limit was 0.003 mg/L, and the quantification limit was 0.010 mg/L. The linear range of the calibration plot was between 0.010 and 2.0 mg/L (R 2 > 0.9900). The intraday and interday RSDs% at two concentration levels of 0.05 and 0.20 mg/L were less than 3.4%. Eventually, the applicability of the presented method was evaluated for measuring trace amounts of chromium(VI) in blood samples. Acceptable relative recoveries of 82–93% were achieved. Overall, it can be concluded that Ni x Co y ZIF-67 can be introduced as a promising sorbent for the determination of chromium(VI) into complex biological fluids and its decontamination from industrial wastewaters.

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Section: Methods Validationmentioning

confidence: 89%

Section: Methods Validationmentioning

confidence: 99%

Section: Methods Validationmentioning

confidence: 99%

Section: Methods Validationmentioning

confidence: 99%

See 2 more Smart Citations

Efficient Ion Separation from Environmental and Biological Samples Using a Novel Sorbent Based on Ni-Substituted ZIF-67: Optimization, Equilibrium, Kinetic, and Thermodynamic Study

Zakernezhad

Seidi

Manouchehri

2021

Ind. Eng. Chem. Res.

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“…This strategy consists of introducing the sample in a vail and inserting the HS-SPME device into the space above the liquid surface; after the extraction procedure, the HS-SPME system is connected online to LC equipment. A recently reported application of graphene-based sorbents in the HS-SPME technique for food analysis was performed, utilizing a stainless steel tubing coated with a composite formed by GO and ionic liquid (IL) for the analyses of the headspace of naphthalene, a volatile PAH, in honey samples [ 67 ]. The GO-IL sorbent was prepared by reacting GO and 1-methyl imidazole.…”

Section: Online Sample Preparation For Liquid Chromatographymentioning

confidence: 99%

Recent Trends in Graphene-Based Sorbents for LC Analysis of Food and Environmental Water Samples

Borsatto

Lanças

2023

Molecules

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This review provides an overview of recent advancements in applying graphene-based materials as sorbents for liquid chromatography (LC) analysis. Graphene-based materials are promising for analytical chemistry, including applications as sorbents in liquid chromatography. These sorbents can be functionalized to produce unique extraction or stationary phases. Additionally, graphene-based sorbents can be supported in various materials and have consequently been applied to produce various devices for sample preparation. Graphene-based sorbents are employed in diverse applications, including food and environmental LC analysis. This review summarizes the application of graphene-based materials in food and environmental water analysis in the last five years (2019 to 2023). Offline and online sample preparation methods, such as dispersive solid phase microextraction, stir bar sorptive extraction, pipette tip solid phase extraction, in-tube solid-phase microextraction, and others, are reviewed. The review also summarizes the application of the columns produced with graphene-based materials in separating food and water components and contaminants. Graphene-based materials have been reported as stationary phases for LC columns. Graphene-based stationary phases have been reported in packed, monolithic, and open tubular columns and have been used in LC and capillary electrochromatography modes.

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Green Sorption Materials Used in Analytical Procedures

López-Iglesias

Sierra-Padilla

Palacios-Santander

et al. 2022

Green Chemical Analysis and Sample Preparations

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Electrochemically deposition of ionic liquid modified graphene oxide for circulated headspace in-tube solid phase microextraction of naphthalene from honey samples followed by on-line liquid chromatography analysis

Cited by 17 publications

References 50 publications

Efficient Ion Separation from Environmental and Biological Samples Using a Novel Sorbent Based on Ni-Substituted ZIF-67: Optimization, Equilibrium, Kinetic, and Thermodynamic Study

Efficient Ion Separation from Environmental and Biological Samples Using a Novel Sorbent Based on Ni-Substituted ZIF-67: Optimization, Equilibrium, Kinetic, and Thermodynamic Study

Recent Trends in Graphene-Based Sorbents for LC Analysis of Food and Environmental Water Samples

Green Sorption Materials Used in Analytical Procedures

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