Application of Dispersive Liquid–Liquid Micro-extraction Using Mean Centering of Ratio Spectra Method for Trace Determination of Mercury in Food and Environmental Samples

Hossien-poor-Zaryabi, Mohadese; Chamsaz, Mahmoud; Heidari, Tahereh; Zavar, Mohammad Hossein Arbab; Behbahani, Mohammad; Salarian, Mani

doi:10.1007/s12161-013-9633-5

Cited by 30 publications

(14 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An enrichment procedure employing Fe 3 O 4 magnetic nanoparticles functionalized with dithizone was investigated for extraction and determination of ultra-trace amounts of mercury in table salt, green tea, vegetables, toothpaste, and water samples using CV AAS [115]. A preconcentration procedure for determination of amount trace of mercury in sea and river fish samples was proposed using dispersive liquid-liquid micro-extraction [116]. A procedure for determination of total mercury in muscle tissue of fish was developed using GF AAS.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…Methylmercury was measured in rice (Oryza sativa L.) using gas chromatography (GC)-CVAFS detection. The cereal grown in soils from areas of abandoned mercury mines [116]. Flow injection cold vapour generationinductively coupled plasma mass spectrometry (FI-CVG-ICP-MS) and gas chromatography-ICP-MS (GC-ICP-MS) have been applied to determination of total Hg, inorganic Hg and methylmercury in red wine [112].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

See 1 more Smart Citation

Analytical strategies of sample preparation for the determination of mercury in food matrices — A review

Ferreira

Lemos

Silva

et al. 2015

Microchemical Journal

View full text Add to dashboard Cite

Section: Accepted Manuscriptmentioning

confidence: 99%

Section: Accepted Manuscriptmentioning

confidence: 99%

Analytical strategies of sample preparation for the determination of mercury in food matrices — A review

Ferreira

Lemos

Silva

et al. 2015

Microchemical Journal

View full text Add to dashboard Cite

“…Lead has many detriments for human health and may accumulate at liver, bones, and muscles [5,6]. Accordingly, precise determination of heavy metals in natural is the important part of analytical chemistry's studies [7,8].…”

Section: Graphical Abstract Introductionmentioning

confidence: 99%

Application of modified sawdust for solid phase extraction, preconcentration and determination of trace lead in water samples

2019

Asian J. Green Chem.

View full text Add to dashboard Cite

A new sorbent was prepared for separation and preconcentration of Pb (II) by using the flame atomic absorption spectrometry. The normative studies on extraction, separation and preconcetration of Pb (II) were represented in this work. This novel method was based on new sorbent by adding diethylenetriamine to sawdust, increasing the incidence exterior. The effect of different parameters including, pH, ligand concentration and sample volume, type and volume of eluent and ligand effect were studied. The optimum pH and preconcentration factor and limit of detection for Pb (II) were 4, 100, and 0.48 µg/L, respectively. In addition, the calibration curve was linear in the range of 0.05-100 mg.mL-1 with R 2 =0.995. The vertical and horizontal confines of calibration diagrams in 500 mL solution were calculated about 0-0.5 mg L-1 and 0-0.6. The results of applying the present method to determinate the separated lead ions in water samples were prosperous and harmonious. Precision of the method was investigated by comparing them with the observations from previous similar researches.

show abstract

“…The field of microextraction has gained wide attention from green analytical chemistry (GAC) perspective due to limited consumption of the extraction solvent (o100 mL) [2]. There are various microextraction approaches like dispersive liquid liquid microextraction (DLLME) [4][5][6][7], solid phase (micro)extraction [8][9][10][11][12], single drop microextraction [13] and hollow fiber supported liquid phase microextraction [14] which have been investigated for the isolation and enrichment of trace analytes from the complex samples prior to detection. DLLME is cheap, simple and fast microextraction technique which presents high enrichment factor [15], even though difficulty to automation and the use of environmentally unfriendly solvents have been narrated as its limitations.…”

Section: Introductionmentioning

confidence: 99%

Ionic liquid-based zinc oxide nanofluid for vortex assisted liquid liquid microextraction of inorganic mercury in environmental waters prior to cold vapor atomic fluorescence spectroscopic detection

Amde

Liu

Tan

et al. 2016

Talanta

View full text Add to dashboard Cite

a b s t r a c tZinc oxide nanofluid (ZnO-NF) based vortex assisted liquid liquid microextraction (ZnO-NF VA-LLME) was developed and employed in extraction of inorganic mercury (Hg 2 þ ) in environmental water samples, followed by cold vapor atomic fluorescence spectrometry (CV-AFS). Unlike other dispersive liquid liquid microextraction techniques, ZnO-NF VA-LLME is free of volatile organic solvents and dispersive solvent consumption. Analytical signals were obtained without back-extraction from the ZnO-NF phase prior to CV-AFS determination. Some essential parameters of the ZnO-NF VA-LLME and cold vapor generation such as composition and volume of the nanofluid, vortexing time, pH of the sample solution, amount of the chelating agent, ionic strength and matrix interferences have been studied. Under optimal conditions, efficient extraction of 1 ng/mL of Hg 2 þ in 10 mL of sample solution was achieved using 50 μL of ZnO-NF. The enrichment factor before dilution, detection limits and limits of quantification of the method were about 190, 0.019 and 0.064 ng/mL, respectively. The intra and inter days relative standard deviations (n¼8) were found to be 4.6% and 7.8%, respectively, at 1 ng/mL spiking level. The accuracy of the current method was also evaluated by the analysis of certified reference materials, and the measured Hg 2 þ concentration of GBW08603 (9.6 ng/mL) and GBW(E)080392 (8.9 ng/mL) agreed well with their certified value (10 ng/mL). The method was applied to the analysis of Hg 2 þ in effluent, influent, lake and river water samples, with recoveries in the range of 79.8-92.8% and 83.6-106.1% at 1 ng/mL and 5 ng/mL spiking levels, respectively. Overall, ZnO-NF VA-LLME is fast, simple, cost-effective and environmentally friendly and it can be employed for efficient enrichment of the analyte from various water samples.

show abstract

Application of Dispersive Liquid–Liquid Micro-extraction Using Mean Centering of Ratio Spectra Method for Trace Determination of Mercury in Food and Environmental Samples

Cited by 30 publications

References 37 publications

Analytical strategies of sample preparation for the determination of mercury in food matrices — A review

Analytical strategies of sample preparation for the determination of mercury in food matrices — A review

Application of modified sawdust for solid phase extraction, preconcentration and determination of trace lead in water samples

Ionic liquid-based zinc oxide nanofluid for vortex assisted liquid liquid microextraction of inorganic mercury in environmental waters prior to cold vapor atomic fluorescence spectroscopic detection

Contact Info

Product

Resources

About