Supramolecular microextraction of cobalt from water samples before its microsampling flame atomic absorption spectrometric detection

ALOthman, Zeid A.; Habila, Mohamed A.; Yılmaz, Erkan; AL-Harbi, Nasser M.; Soylak, Mustafa

doi:10.1080/03067319.2015.1090568

Cited by 30 publications

(10 citation statements)

References 34 publications

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“…It has been reported that exposure to ultrasonic waves may assess the formation of supramolecular organic layer and enhance their separation from the aqueous layer [22].…”

Section: Resultsmentioning

confidence: 99%

“…The isolation of Ni(II) from aqueous sample solution depends on the complexation interaction with the N,N′-Dihydroxy-1,2-cyclohexanediimine ligand, as well as the charge distribution on this ligand which allows the presence of inert tail and facilitate the transference to organic supramolecular phase [16][17][18][22][23][24]. Thus, the volume of introduced 0.1% N,N′-Dihydroxy-1,2-cyclohexanediimine ligand was studied in the range from 50 μL to 300 μL and the calculated recoveries% are presented in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…The suitable volume of 0.1% N,N′-Dihydroxy-1,2-cyclohexanediimine ligand was found to be between 100 μL and 200 μL. The composition of the supramolecular solvent mixture was investigated by testing mixtures of tetrahydrofuran with 1-decanol, tetrahydrofuran with undecanol, and tetrahydrofuran with decanoic acid [16,[22][23][24][25][26][27][28] and applying the preconcentration steps. It was found that the recovery% was 98%, 79%, 68% respectively.…”

Section: Resultsmentioning

confidence: 99%

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Ultrasonic supramolecular microextration of nickel (II) as N,N′-Dihydroxy-1,2-cyclohexanediimine chelates from water, tobacco and fertilizer samples before FAAS determination

ALOthman

Habila

Yılmaz

et al. 2016

Journal of Molecular Liquids

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“…It has been reported that exposure to ultrasonic waves may assess the formation of supramolecular organic layer and enhance their separation from the aqueous layer [22].…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Ultrasonic supramolecular microextration of nickel (II) as N,N′-Dihydroxy-1,2-cyclohexanediimine chelates from water, tobacco and fertilizer samples before FAAS determination

ALOthman

Habila

Yılmaz

et al. 2016

Journal of Molecular Liquids

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“…During real applications, the conditions of the microextraction media were affected by the presence of coexisting ions that may compete with the targeted analyte, leading to a reduction in the sensitivity of the method and a reduction in the recovery [ 47 , 48 , 49 , 50 ]. The coexisting ions, such as F − , PO 4 3− , Ni 2+ , NO 3 − , Co 2+ , Zn 2+ , CO 3 2− , K + /Cl − , Mg 2+ , Ca 2+ , SO 4 2− , and Fe 2+ , were investigated using the developed DES-ME process for Pb(II) preconcentration to assess the selectivity and tolerance.…”

Section: Resultsmentioning

confidence: 99%

Deep Eutectic Solvent-Based Microextraction of Lead(II) Traces from Water and Aqueous Extracts before FAAS Measurements

et al. 2020

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Microextraction procedures for the separation of Pb(II) from water and food samples extracts were developed. A deep eutectic solvent composed of α-benzoin oxime and iron(III) chloride dissolved in phenol was applied as a phase separator support. In addition, this deep eutectic mixture worked as an efficient extractor of Pb(II). The developed microextraction process showed a high ability to tolerate the common coexisting ions in the real samples. The optimum conditions for quantitative recoveries of Pb(II) from aqueous extracts were at pH 2.0, conducted by adding 150 µL from the deep eutectic solvent. The quantitative recoveries were obtained with various initial sample volumes up to 30 mL. Limits of detection and limits of quantification of 0.008 and 0.025 µg L−1 were achieved with a relative standard deviation (RSD%) of 2.9, which indicates the accuracy and sensitivity of the developed procedure. Recoveries from the reference materials, including TMDA 64.2, TMDA 53.3, and NCSDC-73349, were 100%, 97%, and 102%, respectively. Real samples, such as tap, lake, and river water, as well as food samples, including salted peanuts, chickpeas, roasted yellow corn, pistachios, and almonds, were successfully applied for Pb(II) analysis by atomic absorption spectroscopy (AAS) after applying the developed deep eutectic solvent-based microextraction procedures.

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“…Liquid‐phase microextraction (LPME) and pre‐concentration of vanadium is favoured over other methods due to simplicity, sensitivity, ease of analysis, high pre‐concentration factor (PF) and less consumption of organic solvent. In LPME methods, the correct selection of green and eco‐friendly solvents is always a difficult task for successful extraction and non‐toxic methods . To overcome the high cost and poisoning level of ionic liquids, novel deep eutectic solvents (DESs) have emerged .…”

Section: Introductionmentioning

confidence: 99%

Novel ultrasonic‐assisted deep eutectic solvent‐based dispersive liquid–liquid microextraction for determination of vanadium in food samples by electrothermal atomic absorption spectrometry: A multivariate study

Zounr

Tüzen

Khuhawar

2017

Applied Organom Chemis

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A green, efficient, simple and sensitive pre‐concentration method has been developed for the determination of vanadium(V) in foodstuffs using deep eutectic solvent–ultrasonic‐assisted dispersive liquid–liquid microextraction. In the developed procedure, the extraction of vanadium(V) was achieved using 2‐hydroxy‐3‐methoxybenzaldehyde thiosemicarbazone as a chelating agent, choline chloride–phenol as extracting solvent and tetrahydrofuran as dispersive solvent. Vanadium(V) concentration was measured using electrothermal atomic absorption spectrometry. Various analytical parameters including pH, type and molar ratio of deep eutectic solvent, ultrasonication time and amount of ligand were studied. A multivariate study was carried out for optimization of the variables. The pre‐concentration factor was calculated as 50. Under optimal conditions, limit of detection, limit of quantification and relative standard deviation were calculated as 0.025 μg l−1, 0.175 μg l−1 and 3.4%, respectively. The accuracy of the procedure was confirmed using certified reference materials and standard addition method. The obtained results confirm adequate recoveries for vanadium(V) (>96%). This technique was fruitfully applied for determination of vanadium in foodstuffs.

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Supramolecular microextraction of cobalt from water samples before its microsampling flame atomic absorption spectrometric detection

Cited by 30 publications

References 34 publications

Ultrasonic supramolecular microextration of nickel (II) as N,N′-Dihydroxy-1,2-cyclohexanediimine chelates from water, tobacco and fertilizer samples before FAAS determination

Ultrasonic supramolecular microextration of nickel (II) as N,N′-Dihydroxy-1,2-cyclohexanediimine chelates from water, tobacco and fertilizer samples before FAAS determination

Deep Eutectic Solvent-Based Microextraction of Lead(II) Traces from Water and Aqueous Extracts before FAAS Measurements

Novel ultrasonic‐assisted deep eutectic solvent‐based dispersive liquid–liquid microextraction for determination of vanadium in food samples by electrothermal atomic absorption spectrometry: A multivariate study

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