Determination of Ni, Cr, Cu, Pb and Cd on the Mediterranean endemic plant Posidonia oceanica using the green extraction method “Microwave Assisted Micellar Extraction” and GFAAS

Hernández-Martínez, Ana M.; Padrón-Sanz, Carolina

doi:10.1039/c3ay41310a

Cited by 13 publications

(5 citation statements)

References 42 publications

(52 reference statements)

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“…Generally, several techniques such as extraction, spectrophotometry flow injection analysis, kinetic methods , luminescent, voltammetric determination, graphite furnace atomic absorption spectrometry (GFAAS) flame atomic absorption spectrometry (FAAS), liquid chromatography and inductively coupled plasma spectrometry, have been widely utilized for the efficient determination of copper (II) ion. Most of these methods, especially those based on complex instrumental techniques, are expensive and time‐consuming.…”

Section: Introductionmentioning

confidence: 99%

Application of 2‐(benzyliminomethyl)‐6‐methoxy‐4‐(4‐methoxyphenyl‐azo)phenol in construction of ion‐selective PVC membrane electrode for determination of copper (II) in mineral water sample

Pouya

Arabi

Absalan

2017

Applied Organom Chemis

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The potentiometric characteristics of a new Cu2+‐selective electrode based on 2‐(benzyliminomethyl)‐6‐methoxy‐4‐(4‐methoxyphenyl‐azo) phenol as an efficient ionophore has been evaluated. The effects of influential parameters on the potentiometric responses such as the amount of plasticizer, the amount of ionophore, pH of the sample solution, and the effect of coexisting ions on the electrode signal were subsequently investigated. The selectivity of the electrode was assessed by calculating the selectivity coefficients using the matched potential method. The optimum ratio of the amount of materials required for the preparation of the electrode was found to be 1.7: 32.1: 64.2: 2.0 corresponding to carboxylated PVC, dimethyl sebacate as solvent mediators, potassium tetrakis (p‐chlorophenyl) borate as the anion localizing agent, and ionophore, respectively. The electrode had a fast response (7s) as well as a satisfactory Nernstian slope (29.26±0.91 mV/decade) to Cu2+ over a wide concentration range of 2.0×10−6‐ 5.0×10−2 M with a low detection limit of 5.9×10−7 M. The developed sensor was successfully used for the potentiometric titration of Cu2+ ion with EDTA and subsequently, efficient determination of this metal ion in a mineral water sample was performed.

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Section: Introductionmentioning

confidence: 99%

Application of 2‐(benzyliminomethyl)‐6‐methoxy‐4‐(4‐methoxyphenyl‐azo)phenol in construction of ion‐selective PVC membrane electrode for determination of copper (II) in mineral water sample

Pouya

Arabi

Absalan

2017

Applied Organom Chemis

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“…This has only been done in a previous study by our team, which has demonstrated the efficiency of mixed micelles, as the sole extractant, for the extraction of heavy metals in an organic matrix of plant origin. 40 Therefore, the aim of this work is to optimize a microwave assisted extraction method for the extraction of nickel, chromium, copper, lead and cadmium from the marine bioindicators Mytilus galloprovincialis and Nereis diversicolor, by using exclusive surfactants (Sodium Dodecyl Sulphate (SDS) and Triton X-100) and subsequent analysis by Graphite Furnace Atomic Absorption Spectrometry (GF-AAS).…”

Section: Introductionmentioning

confidence: 99%

Analysis of Ni, Cr, Cu, Pb and Cd in marine bioindicators using mixed-micelles with microwave assisted micellar extraction and GF-AAS

et al. 2016

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“…28,32,34 Mixtures of these two types of surfactants are also employed due to their synergistic combination, as it has been demonstrated in various studies. 28,34,35 However, these kinds of studies usually employ chelating agents to ease the extraction. For example, Sang et al 36 used, prior to aluminium extraction with Triton X-114, PMPP (1-phenyl-3-methyl-4-benzoyl-5-pyrozolone) as the chelating agent.…”

Section: Introductionmentioning

confidence: 99%

Determination of heavy metals in marine sediments using MAME-GFAAS

Hernández-Martínez

Padrón-Sanz

Torres-Padrón

et al. 2015

J. Anal. At. Spectrom.

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A new green method has been developed for the extraction of the pseudo-total content of the heavy metals Ni, Cu, Cr, Pb, and Cd from marine sediments using a mixture of biodegradable micellar media (SDS, Triton X-100) as extractants and graphite furnace atomic absorption spectrometry (GFAAS) for their determination. This work is the first one that uses only surfactants as extractants, without the addition of chelating agents to increase the extraction efficiency of the method, proving to be effective in the extraction of metals from this type of matrices. The proposed method has shown high recovery percentages for all the metals considered (>68%), good linearity and reproducibility (RSD<5.9%), as well as detection limits ranging from 0.06 to 2.78 µg g -1 . The method was applied to the determination of the heavy metals under study in samples with different physicochemical properties. Finally, our results were compared with those obtained using microwave assisted extraction -furnace atomic absorption spectrometry (MAE/GFAAS) described in ISO 11047:1998 obtaining comparable results.Nevertheless, Hübner et al. (5) raise four different options for the use of the term "heavy metal", although they suggest that the term applies to the following elements: arsenic, cadmium, chromium, cobalt, copper, lead, mercury, nickel, tin and zinc. Heavy metals considered in this study (Ni, Cr, Cu, Pb and Cd) are categorized as priority pollutants by the U.S. Environmental Protection Agency (6). They have proved to be important pollutants in the marine environment, with high toxicity, long persistence and rapid accumulation at living organisms (7-9).Due to the hydrophobic behaviour of these metals, their concentration in seawater is very low, and they instead tend to accumulate in marine sediments (8)(9)(10)(11)(12). This trend is due to adsorption, co-precipitation and metal complexation in the surface layers of fine sediment particles. Thus, four types of metal fractions can be distinguished: (a) the exchangeable fraction, which is located in the ion exchange sites and it is freely available to take part in chemical reactions, (b) the reducible fraction, consisting of complex oxides and hydroxides, which is soluble under reducing conditions, (c) the oxidizable fraction, which is formed with the organic matter and sulphides, and

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Determination of Ni, Cr, Cu, Pb and Cd on the Mediterranean endemic plant Posidonia oceanica using the green extraction method “Microwave Assisted Micellar Extraction” and GFAAS

Cited by 13 publications

References 42 publications

Application of 2‐(benzyliminomethyl)‐6‐methoxy‐4‐(4‐methoxyphenyl‐azo)phenol in construction of ion‐selective PVC membrane electrode for determination of copper (II) in mineral water sample

Application of 2‐(benzyliminomethyl)‐6‐methoxy‐4‐(4‐methoxyphenyl‐azo)phenol in construction of ion‐selective PVC membrane electrode for determination of copper (II) in mineral water sample

Analysis of Ni, Cr, Cu, Pb and Cd in marine bioindicators using mixed-micelles with microwave assisted micellar extraction and GF-AAS

Determination of heavy metals in marine sediments using MAME-GFAAS

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