Development of green vortex-assisted supramolecular solvent-based liquid–liquid microextraction for preconcentration of mercury in environmental and biological samples prior to spectrophotometric determination

Gouda, Ayman A.; Alshehri, Ali; Sheikh, Ragaa El; Hаssаn, Wаfаа S.; Ibrahim, Sara H.

doi:10.1016/j.microc.2020.105108

Cited by 37 publications

(8 citation statements)

References 43 publications

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“…The pH of the resulting solution was adjusted to 4.5 using acetate buffer. 38 Instrumentation. The concentration of two contaminant elements, Cd and Pb, was estimated in hair samples using an ICP OES model Vista-PRO simultaneous from Varian Company (USA).…”

Section: Preparation Of Hair Samplesmentioning

confidence: 99%

A novel in-syringe cloud point extraction method for the determination of cadmium and lead in human hair samples

Zolfaghari,

Daryanavard,

Gholamshahzadeh

2024

New J. Chem.

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Section: Preparation Of Hair Samplesmentioning

confidence: 99%

A novel in-syringe cloud point extraction method for the determination of cadmium and lead in human hair samples

Zolfaghari,

Daryanavard,

Gholamshahzadeh

2024

New J. Chem.

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“…In this study, the limits of detection and quantitation were 0.5-1.2 µg L −1 and 1.2-2.5 µg L −1 in water and biological samples, respectively. Another application of these solvents was in the vortex assisted-LLME of mercury in hair samples using quinalizarin as a chelating agent, forming a metal-quinalizarin complex extracted in 1-decanol/THF as a SUPRAS solvent, with a LOD of 0.30 µg L −1 [99]. Nevertheless, surfactants are petroleum-based and are only moderately biodegradable.…”

Section: Nanostructured Supramolecular Solvents (Suprass)mentioning

confidence: 99%

Overview of Different Modes and Applications of Liquid Phase-Based Microextraction Techniques

et al. 2022

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Liquid phase-based microextraction techniques (LPµETs) have attracted great attention from the scientific community since their invention and implementation mainly due to their high efficiency, low solvent and sample amount, enhanced selectivity and precision, and good reproducibility for a wide range of analytes. This review explores the different possibilities and applications of LPμETs including dispersive liquid–liquid microextraction (DLLME) and single-drop microextraction (SDME), highlighting its two main approaches, direct immersion-SDME and headspace-SDME, hollow-fiber liquid-phase microextraction (HF-LPME) in its two- and three-phase device modes using the donor–acceptor interactions, and electro membrane extraction (EME). Currently, these LPμETs are used in very different areas of interest, from the environment to food and beverages, pharmaceutical, clinical, and forensic analysis. Several important potential applications of each technique will be reported, highlighting its advantages and drawbacks. Moreover, the use of alternative and efficient “green” extraction solvents including nanostructured supramolecular solvents (SUPRASs, deep eutectic solvents (DES), and ionic liquids (ILs)) will be discussed.

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“…In contrast, HPLC-AFS is preferable for qualitative and quantitative determination with excellent precision, accuracy and lower cost, which is much more practical and economical in detecting mercury species. In additionally, a further preconcentration procedure is essential for mercury species determination because of their trace levels in water samples such as liquid-liquid extraction (LLE), 15 liquid-liquid-liquid microextraction (LLLME), 16 distillation, 17 and solid phase extraction (SPE). 18,19 Among these techniques, SPE displays attractive advantages for its flexibility, high retention capacity, ease of automation and minimal consumption of organic solvents.…”

Section: Figmentioning

confidence: 99%

Sensitive Mercury Speciation Analysis in Water by High-Performance Liquid Chromatography-Atomic Fluorescence Spectrometry Coupling with Solid-Phase Extraction

Chen

Zhang

et al. 2021

ANAL. SCI.

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An efficient method based on high performance liquid chromatography coupled with atomic fluorescence spectrometry (HPLC-AFS) was successfully developed for the simultaneous determination of four mercury species including Hg 2+ , methylmercury (MeHg), ethylmercury (EtHg), and phenylmercury (PhHg) in water. Samples were enriched and cleaned up with solid phase extraction (SPE) pretreatment using thiol cartridge, some key parameters including selection of SPE cartridge, eluent type, eluent volume, and the interference factors were systematically investigated. The chromatographic separation was achieved on C 18 column using a mobile phase consisting of methanol and 60 mmol L -1 ammonium acetate with 10 mmol L -1 L-cysteine by gradient elution. Under the optimized conditions, good linearity (r ≥ 0.9991) was observed between 0.20 μg L -1 to 10.

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Development of green vortex-assisted supramolecular solvent-based liquid–liquid microextraction for preconcentration of mercury in environmental and biological samples prior to spectrophotometric determination

Cited by 37 publications

References 43 publications

A novel in-syringe cloud point extraction method for the determination of cadmium and lead in human hair samples

A novel in-syringe cloud point extraction method for the determination of cadmium and lead in human hair samples

Overview of Different Modes and Applications of Liquid Phase-Based Microextraction Techniques

Sensitive Mercury Speciation Analysis in Water by High-Performance Liquid Chromatography-Atomic Fluorescence Spectrometry Coupling with Solid-Phase Extraction

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