Analytical application of surface-affinity polymerized vesicular membranes to trace metal analysis by electrothermal atomic absorption spectrometry

Kapakoglou, Nikolaos I.; Giokas, Dimosthenis L.; Tsogas, George Z.; Vlessidis, Athanasios G.

doi:10.1007/s00604-010-0314-4

Cited by 8 publications

(4 citation statements)

References 36 publications

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“…Solid phase extraction also performs well in the preconcentration of trace metals with respect to minimizing solvent waste generation and the adsorption of analytes on the adsorbent in a more stable chemical form [21][22][23][24]. Adsorbents are preferred for the SPE of metal ions from environmental samples and these should have the following properties: the possibility for extracting a variety of metal ions over a wide pH range, high surface area, fast and quantitative adsorption and easy elution, ultra purity, repeated usability and accessibility [25][26][27][28][29]. Carbon nanotubes possess these properties and their use for enrichment and separation of metal ions at trace levels has been very popular in recent years [30][31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Solid phase extraction of Cd(II), Pb(II), Zn(II) and Ni(II) from food samples using multiwalled carbon nanotubes impregnated with 4-(2-thiazolylazo)resorcinol

et al. 2012

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Multiwalled carbon nanotubes were impregnated with 4-(2-thiazolylazo)resorcinol and used for the separation and preconcentration of Cd(II), Pb(II), Zn(II) and Ni(II) ions from food samples. The analytes were quantitatively recovered at pH 7.0 and eluted with 3 mol L −1 acetic acid. The effects of pH value, flow rate, eluent type and sample volume on the recoveries, and the effects of alkali, earth alkali and transition metals on the retention of the analytes were studied. The method was validated using the standard certified reference materials SRM 1570A (spinach leaves) and IAEA 336 (lichen), and the results were found to be compatible with the certified values of reference materials. The new enrichment procedure was applied to the determination of these ions in various food samples.

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Section: Introductionmentioning

confidence: 99%

Solid phase extraction of Cd(II), Pb(II), Zn(II) and Ni(II) from food samples using multiwalled carbon nanotubes impregnated with 4-(2-thiazolylazo)resorcinol

et al. 2012

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“…Based on these considerations, a relatively high vacuum pressure 235 (400 mbar) was adopted, a feature which is also advantageous for sample throughput. properties are rather common in vesicle systems [35,36]. On the basis of these results, 297 extractions were carried out in the presence of 1 % NaCl (w/v).…”

Section: Effect Of Filtration Rate 225mentioning

confidence: 99%

In-situ suspended aggregate microextraction: A sample preparation approach for the enrichment of organic compounds in aqueous solutions

Benedé

Giokas

Chisvert

et al. 2015

Journal of Chromatography A

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“…Solid phase extraction also performs well in the preconcentration of trace metals with respect to minimizing solvent waste generation and the adsorption of analytes on the adsorbent in a more stable chemical form [28][29][30][31]. Adsorbents are preferred for the SPE of metal ions from environmental samples and these should have the following properties: the possibility for extracting a variety of metal ions over a wide pH range, high surface area, fast and quantitative adsorption and easy elution, ultra purity, repeated usability and accessibility [32][33][34][35][36]. Carbon nanotubes possess these properties and their use for enrichment and separation of metal ions at trace levels has been very popular in recent years.…”

Section: Fig 1 Structure Of Ldhmentioning

confidence: 99%

Determination of Pb and Ni in Natural Water Samples after Solid Phase Extraction with Layered Double Hydroxide (LDH) Nano-Particles

Sepehrikiya¹

2013

NANO

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Due to the industrialization, especially in the developing countries, the emission of the heavy metals as lead, cadmium, chromium, nickel, arsenic, and mercury are highly concerned to public and aquatic health. Lead is released with the effluent from the paint, batteries, and automobiles manufacturing units. Lead is one of the toxic metals and largely affects the central, peripheral nervous system. In this study, a suitable and reliable method for the direct determination of Pb and Ni ions in environmental water is proposed. Pb and Ni ions were extracted and precocentrated with layered double hydroxides (LDHs) nano-particles. LDHs, relatively inexpensive and simply prepared material, was synthesized and used as a solid phase extraction (SPE) adsorbent to quantitatively determine the concentration of Pb and Ni ions in natural water samples. Several factors affecting the extraction efficiency, such as, eluent type, eluent volume, flow rate of sample, sample volume, and amount of adsorbent, were investigated and optimized in detail. Pb and Ni ions can be quantitatively retained by LDH nano-particles, then eluted completely by 1 mL of CO 3 2-(1.5 mol L-1) and1mL EtOH (65% v/v), respectively. The detection limit of this method for Pb and Ni ions was 17 ng mL−1with an enrichment factor of 100, and the relative standard deviation (RSD) was 1.4%.

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Analytical application of surface-affinity polymerized vesicular membranes to trace metal analysis by electrothermal atomic absorption spectrometry

Cited by 8 publications

References 36 publications

Solid phase extraction of Cd(II), Pb(II), Zn(II) and Ni(II) from food samples using multiwalled carbon nanotubes impregnated with 4-(2-thiazolylazo)resorcinol

Solid phase extraction of Cd(II), Pb(II), Zn(II) and Ni(II) from food samples using multiwalled carbon nanotubes impregnated with 4-(2-thiazolylazo)resorcinol

In-situ suspended aggregate microextraction: A sample preparation approach for the enrichment of organic compounds in aqueous solutions

Determination of Pb and Ni in Natural Water Samples after Solid Phase Extraction with Layered Double Hydroxide (LDH) Nano-Particles

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