Combination of cold-induced aggregation microextraction and central composite design for preconcentration and determination of copper in food and water samples

Amiri, Nasibeh Saeedzadeh; Shemirani, Farzaneh; Khani, Rouhollah

doi:10.1080/19443994.2012.758057

Cited by 5 publications

(2 citation statements)

References 27 publications

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“…The ne droplets of the extractant phase can be settled easily in saline solutions due to the high density of ILs 26 CIAME was applied to the extraction of toxic metals in water samples. [33][34][35][36][37] The main objective of this paper is to study the applicability of CIAME followed by ame atomic absorption spectroscopy (FAAS) for the determination of cobalt in the high-salinity reverse osmosis concentrates. The effective parameters such as pH, the amount of water-soluble ionic liquid, ion pairing agent, complexing agent and salt content were investigated and optimized.…”

Section: Introductionmentioning

confidence: 99%

Determination of cobalt in high-salinity reverse osmosis concentrates using flame atomic absorption spectrometry after cold-induced aggregation microextraction

2016

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Section: Introductionmentioning

confidence: 99%

Determination of cobalt in high-salinity reverse osmosis concentrates using flame atomic absorption spectrometry after cold-induced aggregation microextraction

2016

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“…E.M. Martinis et al/Trends in AnalyticalChemistry 60 (2014) [54][55][56][57][58][59][60][61][62][63][64][65][66][67][68][69][70] …”

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confidence: 99%

Ionic liquid-based microextraction techniques for trace-element analysis

Martinis

Bertón

Wuilloud

2014

TrAC Trends in Analytical Chemistry

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Ultrasound‐assisted low‐density‐solvent‐based solvent‐demulsified dispersive liquid–liquid microextraction for the quantification of amino acids in biological samples

Zare

Razmi

2018

Separation Science Plus

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An ultrasound‐assisted low‐density‐solvent‐based solvent‐demulsified dispersive liquid–liquid microextraction followed by high‐performance liquid chromatography with ultraviolet detection method has been established for the purpose of microextraction and recognition of tyrosine, phenylalanine and tryptophan from plasma and urine samples. For the preconcentration of analytes, 10 mL of sample solution was placed in test tube. A blend of 200 μL 1‐dodecanol and 100 μL acetonitrile were quickly injected into the sample solution and then shaken for 4.8 min using ultrasonic irradiation. The addition of demulsifier into the formed emulsion results in rapid separation of the mixture into two phases. The central composite design was used for optimization of microextraction conditions. Under the optimized conditions, the calibration graphs of tyrosine, phenylalanine and tryptophan were linear in the range of 1–200 μmol L−1. Limits of detection and quantification were 0.17–0.32 and 0.64–1.09 μmol L−1, respectively. This procedure was successfully used to determine target analytes in spiked plasma and urine samples; the relative mean recoveries ranged from 84.7 to 96.4%.

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Combination of cold-induced aggregation microextraction and central composite design for preconcentration and determination of copper in food and water samples

Cited by 5 publications

References 27 publications

Determination of cobalt in high-salinity reverse osmosis concentrates using flame atomic absorption spectrometry after cold-induced aggregation microextraction

Determination of cobalt in high-salinity reverse osmosis concentrates using flame atomic absorption spectrometry after cold-induced aggregation microextraction

Ionic liquid-based microextraction techniques for trace-element analysis

Ultrasound‐assisted low‐density‐solvent‐based solvent‐demulsified dispersive liquid–liquid microextraction for the quantification of amino acids in biological samples

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