Ionic liquid-based extraction followed by graphite-furnace atomic absorption spectrometry for the determination of trace heavy metals in high-purity iron metal

Matsumiya, Hiroaki; Kato, Tatsuya; Hiraide, Masataka

doi:10.1016/j.talanta.2013.11.057

Cited by 20 publications

(5 citation statements)

References 40 publications

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“…Liquid-liquid extraction (LLE) has been used for the recovery of metals from various waste sources. 6,7 LLE system consists of two phases, namely the aqueous phase and the organic phase. Aqueous phase refers to the part of the system which is loaded (contaminated) by a solute (solutes), and the organic phase is an immiscible liquid (diluent) in which the liquid extraction classification contains an extraction facilitator (carrier, extractant).…”

Section: Introductionmentioning

confidence: 99%

Base Metal Ion Extraction and Stripping from WEEE Leachate by Liquid-liquid Extraction

Talebi¹,

Cesaro²,

Marra³

et al. 2018

JPS

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The simultaneous effect of different factors such as pH, carrier concentrations, organic phase modifier, and stripping agent concentrations on the extraction and stripping of base metals from waste electrical and electronic equipment (WEEE) leachate was investigated. Initially, sulphuric acid and hydrogen peroxide were used in the leaching process of base metals from WEEE, followed by an investigation on the effectiveness of different organic phases on WEEE leachate regarding metal extraction. In this phase, Versatic 10 (V10) and tributyl phosphate (TBP) were used as carrier and phase modifier, respectively, while kerosene was used as the organic phase diluent. Extractions of silver, copper, cadmium, nickel, iron, lead, zinc and aluminium were achieved using 150 mm of V10, loaded with 100 mm of TBP in kerosene. Eventually, a study on extracted metals stripping was carried out to optimise the highest base metal stripping from the organic phase. For this purpose, different concentrations of sulfuric acid were used as stripping agent, and the results revealed that 1.5 M of H 2 SO 4 successfully stripped the extracted metal ions.

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Section: Introductionmentioning

confidence: 99%

Base Metal Ion Extraction and Stripping from WEEE Leachate by Liquid-liquid Extraction

Talebi¹,

Cesaro²,

Marra³

et al. 2018

JPS

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show abstract

“…In addition, numerous metal ions generally coexist in analytical samples, and their simultaneous detection is more practically important. To date, many analysis technologies have been developed to detect mercury, such as fluorescence detection methods, 8,9 atomic absorption spectrometry, 13,14 inductively coupled plasma mass spectrometry and atomic emission spectrometry, 15,16 high-performance liquid chromatography (HPLC) with optical spectrometry detection 17 and colorimetric assays. 3,18 Some of these analysis technologies are rather complicated, costly, and time-consuming.…”

Section: Introductionmentioning

confidence: 99%

Mercury species induced frequency-shift of molecular orientational transformation based on SERS

Zhong

Zhao

Wang

et al. 2016

Analyst

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We proposed a novel readout method based on a peculiar phenomenon in which the vibrational frequencies of a SERS-active probe (dimethyldithiocarbamic acid sodium salt, DASS) can be affected when there is mercury species. Compared to the SERS intensity-dependent quantitative determination method, SERS frequency-shift-based methods have several advantages: smaller standard deviation, perfect linear relationship, and higher accuracy and sensitivity. In addition, the SERS frequency-shift-based method was not affected by irreproducible aggregation of the SERS substrate and instrumental factors, which greatly improved the application prospect of SERS-based detection. The DASS-modified silver nanoparticles produced a highly sensitive sensor specific to mercury species. Upon the addition of a solution of mercury species to the chip, the mercury species specifically binds to the sulfur atoms, which induces a frequency shift of the band at 1374 cm(-1). The detection limit of the proposed method for Hg(2+) is as low as 10(-8) M. In addition, the proposed method exhibited the same phenomenon for organic mercury. Moreover, these results suggest that the proposed platform possesses the potential for sensitive, selective, and high-throughput on-site mercury pollution monitoring in resource-constrained settings.

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“…Because ionic liquids (ILs) have many useful properties, including good EE, thermal stability, and miscibility with water, it has been possible to replace several volatile 17 organic solvents with ILs for the preconcentration of elemental ions. [18][19][20] Recent efforts in metal ion analyses based on ILs have included the development of dispersive liquid-liquid microextraction (DLLME), HF-supported liquid membrane extraction, ultrasound-assisted (UA) DLLME, UA cold-induced aggregation microextraction, and UA temperature-controlled IL DLLME. [21][22][23] In addition, an extraction process employing IL-based LPME against high salt content has been applied successfully to aqueous samples containing up to 40% (w/v) salt, because charged metal ions are usually insoluble in hydrophobic ILs.…”

Section: Introductionmentioning

confidence: 99%

Ultrasound-assisted hollow fiber/ionic liquid-based liquid phase microextraction using an ionic liquid solvent for preconcentration of cobalt and nickel ions in urine samples prior to FAAS determination

Hsu

Lee

Chao

et al. 2016

J. Anal. At. Spectrom.

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Ionic liquid-based extraction followed by graphite-furnace atomic absorption spectrometry for the determination of trace heavy metals in high-purity iron metal

Cited by 20 publications

References 40 publications

Base Metal Ion Extraction and Stripping from WEEE Leachate by Liquid-liquid Extraction

Base Metal Ion Extraction and Stripping from WEEE Leachate by Liquid-liquid Extraction

Mercury species induced frequency-shift of molecular orientational transformation based on SERS

Ultrasound-assisted hollow fiber/ionic liquid-based liquid phase microextraction using an ionic liquid solvent for preconcentration of cobalt and nickel ions in urine samples prior to FAAS determination

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