Determination of Cobalt in Food and Water Samples by Ultrasound-assisted Surfactant-enhanced Emulsification Microextraction and Graphite Furnace Atomic Absorption Spectrometry

Liang, Pei; Yu, Jihai; Yang, Enjian; Mo, Yajuan

doi:10.1007/s12161-013-9780-8

Cited by 16 publications

(5 citation statements)

References 26 publications

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“…Thereafter, the analytical response decreased slowly indicating that there is no further improvement in extraction efficiency in accordance with increasing concentration. When the concentration of surfactant is above the optimum level a small portion of the target molecules might have incorporated into the micelles and solubilized in the aqueous phase thus resulting in low analyte recovery [36]. Moreover, concentration above 0.5% (v/v) resulted in a very low volume of hexane which hampers the collection process.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of green silicone surfactant‐based vortex assisted dispersive liquid‐liquid microextraction for sample preparation of organophosphorus pesticide residues in honey and fruit sample

Elencovan

Yahaya

Samad

et al. 2022

J of Separation Science

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A vortex‐assisted surfactant enhanced emulsification liquid‐liquid microextraction based on non‐ionic silicone surfactant was successfully developed for the determination of organophosphorus pesticides in food samples coupled to gas chromatography‐mass spectrometry. A new type of non‐ionic silicone surfactant composed of polysiloxane chains was employed as a green emulsifier to facilitate the emulsification of extraction solvent into the sample matrix, thereby intensifying the mass transfer of target analytes into the organic phase. The variables that affect the extraction were systematically optimized: 80 μl of hexane and 0.5% (v/v) of silicone surfactant were used as extraction solvent and surfactant respectively, the solution was mixed well under vortex agitation for 1 min with the addition of 4% (w/v) sodium sulfate. Under optimum conditions, the linearity of the method was obtained in the range of 0.1–200 μg/kg with a good coefficient of determination varying from 0.9986 to 0.9996. The limit of detection and the limit of quantitation were between 0.008–0.1 and 0.02–0.3 μg/kg, respectively. Application of the proposed method to real samples gave satisfactory recovery values (80%–118%) for the target analytes. The suggested approach has also proven to be convenient, expeditious, and environmentally benign.

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Section: Resultsmentioning

confidence: 99%

Evaluation of green silicone surfactant‐based vortex assisted dispersive liquid‐liquid microextraction for sample preparation of organophosphorus pesticide residues in honey and fruit sample

Elencovan

Yahaya

Samad

et al. 2022

J of Separation Science

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“…Further improvements to DLLME methodology proposed by Liang et al 47 involved (i) ultrasound to improve the emulsication of the extractant into the aqueous sample instead of using an organic dispersant, (ii) the use of a surfactant, (iii) a combination of the two. The authors used these combined improvements for the rst time in a metal ion preconcentration application.…”

Section: Preconcentrationmentioning

confidence: 99%

Atomic spectrometry update: review of advances in the analysis of clinical and biological materials, foods and beverages

Taylor

Day

Hill³

et al. 2015

J. Anal. At. Spectrom.

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“…Cerium alloys are resistant to high heat and can be used to manufacture jet propulsion components [2][3]. Cerium sulfide can replace harmful metals such as lead and cadmium as a plastic red colorant, and can also be used in industries such as coatings, ink, and paper [4]. In recent years, the rapid development of the rare earth metal industry has also caused a series of environmental problems and resource waste.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Fluorescent Sensing Properties for Ce3+ Ions of Di-Schiff Base Amine Containing Amaide Bridge Probe

Xu,

Ye,

Yan

et al. 2023

J. Phys.: Conf. Ser.

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A fluorescent probe (L) of di-Schiff base amine ligand was designed and synthesized from 2,6-pyridine-dicarboxylic acid, ethylenediamine and p-hydroxybenzaldehyde by condensation reaction and reduction reaction. The structure was confirmed by means of IR, UV, 1H NMR and MS. The research of fluorescence spectroscopy indicated that the probe L exhibited high selectivity for Ce3+. The spectroscopic titration indicated that A good linear work curve with R2 = 0.99607, the stoichiometry of the Ce3+ complex was 1:1, the minimum detection limits for Ce3+was 3.8382×10-6 mol/L and the binding constant of L to Ce3+ was estimated as 6.3734×107 (mol/L)-1. It was expected to be applied to the detection of trace Ce3+.

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Determination of Cobalt in Food and Water Samples by Ultrasound-assisted Surfactant-enhanced Emulsification Microextraction and Graphite Furnace Atomic Absorption Spectrometry

Cited by 16 publications

References 26 publications

Evaluation of green silicone surfactant‐based vortex assisted dispersive liquid‐liquid microextraction for sample preparation of organophosphorus pesticide residues in honey and fruit sample

Evaluation of green silicone surfactant‐based vortex assisted dispersive liquid‐liquid microextraction for sample preparation of organophosphorus pesticide residues in honey and fruit sample

Atomic spectrometry update: review of advances in the analysis of clinical and biological materials, foods and beverages

Synthesis and Fluorescent Sensing Properties for Ce3+ Ions of Di-Schiff Base Amine Containing Amaide Bridge Probe

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