Extraction behavior of copper(II) ion with a hydrophobic amino-functionalized ionic liquid

Fan, Yunchang; Zhang, Sheli; Yang, Fan-Ming; Niu, Haibo; Shi, Jiajia

doi:10.1007/s00604-012-0764-y

Cited by 15 publications

(4 citation statements)

References 30 publications

(39 reference statements)

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“…They possess some excellent characteristics such as negligible vapor pressure, high thermal stability, good conductivity, etc. In recent years, ionic liquids have been extensively used in organic synthesis, separation approaches, nanomaterials, and sensors [1][2][3][4]. It has been demonstrated that ionic liquids can significantly improve the sensitivity and selectivity of electrochemical sensors [5,6].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of 1-[3-(N-pyrrole)propyl]-3-[1-tert-butoxycarbonylamino-propyl]-imidazolium tetrafluoroborate ionic liquid for application in electrochemical sensing of magnolol

Liu

Hou

et al. 2015

Ionics

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1-[3-(N-Pyrrole)propyl]-3-[1-tert-butoxycarbonylamino-propyl]imidazolium tetrafluoroborate ionic liquid was successfully synthesized and characterized. The ionic liquid was electrochemically polymerized onto a glassy carbon electrode surface using a multi-potential step technique. Morphology and electrochemical properties of the polymerized ionic liquid film electrode were studied with scanning electronic microscopy and electrochemical impedance spectroscopy. Using the polymerized ionic liquid film as a sensing platform, electrochemical behaviors of magnolol were investigated by voltammetry. Under optimal experimental conditions, the oxidation peak currents were linearly related to magnolol concentrations in the range from 5.0×10 −8 to 1.0×10 −5 mol L −1 . The detection limit calculated from the standard deviation of the intercept was 2.3 × 10 −7 mol L −1 . Practical application of the polymerized ionic liquid film electrode was demonstrated by determining magnolol in the traditional Chinese medicine. The result is consistent with that obtained using high performance liquid chromatography.

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Section: Introductionmentioning

confidence: 99%

Synthesis of 1-[3-(N-pyrrole)propyl]-3-[1-tert-butoxycarbonylamino-propyl]-imidazolium tetrafluoroborate ionic liquid for application in electrochemical sensing of magnolol

Liu

Hou

et al. 2015

Ionics

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“…The immiscibility of some ILs with water (which allows formation of biphasic systems) as well as the high solubility of organic species in them makes ILs suitable extraction solvents displaying enhanced extraction efficiencies . Furthermore, ILs can be prepared easily from relatively inexpensive materials and tuned by combination of different anions and cations for task‐specific extraction of analyte(s) .…”

Section: Introductionmentioning

confidence: 99%

Extraction and preconcentration of hemin from human blood serum and breast cancer supernatant

et al. 2015

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A green, facile, fast, and sensitive liquid-phase microextraction method is presented for the extraction and preconcentration of hemin in the presence of free iron ions prior to flame atomic absorption spectroscopic determination. In this technique, an anion-functionalized task-specific ionic liquid is used as the extracting solvent. The interface between the extracting solvent and the bulk aqueous phase containing hemin is enormously enlarged by dispersing the ionic liquid to the aqueous phase with the help of ultrasound radiation. Hemin is selectively extracted into the ionic liquid after interaction with the functional group of the ionic liquid. Then, the concentration of the extracted hemin is determined through the absorbance of the iron ions contained in the hemin structure using flame atomic absorption spectroscopy. Different experimental parameters affecting the extraction efficiency have been optimized. Under the optimized conditions, the proposed method has a hemin concentration linear range of 0.020-0.80 mg/L with a detection limit of 0.0080 mg/L. This method has been successfully applied to the extraction and determination of hemin in human serum and supernatant samples.

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“…The covalent tethering of a functional group to one or both of the ions of an otherwise ordinary IL imparts to them particular properties or reactivities. Called ‘‘task‐specific’’ ILs (TSIL), these ILs are finding an increasing number of applications in synthesis , extraction , catalysis , and electrochemistry .…”

Section: Introductionmentioning

confidence: 99%

Application of a thiourea‐containing task‐specific ionic liquid for the solid‐phase extraction cleanup of lead ions from red lipstick, pine leaves, and water samples

Saljooqi

Shamspur

Mohamadi

et al. 2014

J of Separation Science

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Here, task-specific ionic liquid solid-phase extraction is proposed for the first time. In this approach, a thiourea-functionalized ionic liquid is immobilized on the solid sorbent, multiwalled carbon nanotubes. These modified nanotubes packed into a solid-phase extraction column are used for the selective extraction and preconcentration of ultra-trace amounts of lead(II) from aqueous samples prior to electrothermal atomic absorption spectroscopy determination. The thiourea functional groups act as chelating agents for lead ions retaining them and so, give the selectivity to the sorbent. Elution of the retained ions can be performed using an acidic thiourea solution. The effects of experimental parameters including pH of the aqueous solution, type and amount of eluent, and the flow rates of sample and eluent solutions on the separation efficiency are investigated. The linear dependence of absorbance of lead on its concentration in the initial solution is in the range of 0.5-40.0 ng/mL with the detection limit of 0.13 ng/mL (3(Sb)/m, n = 10). The proposed method is applicable to the analysis of red lipstick, pine leaves, and water samples for their lead contents.

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Extraction behavior of copper(II) ion with a hydrophobic amino-functionalized ionic liquid

Cited by 15 publications

References 30 publications

Synthesis of 1-[3-(N-pyrrole)propyl]-3-[1-tert-butoxycarbonylamino-propyl]-imidazolium tetrafluoroborate ionic liquid for application in electrochemical sensing of magnolol

Synthesis of 1-[3-(N-pyrrole)propyl]-3-[1-tert-butoxycarbonylamino-propyl]-imidazolium tetrafluoroborate ionic liquid for application in electrochemical sensing of magnolol

Extraction and preconcentration of hemin from human blood serum and breast cancer supernatant

Application of a thiourea‐containing task‐specific ionic liquid for the solid‐phase extraction cleanup of lead ions from red lipstick, pine leaves, and water samples

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