Preconcentration and determination of nickel (II) and copper (II) ions, in vegetable oils by [TBP] [PO4] IL-based dispersive liquid–liquid microextraction technique, and flame atomic absorption spectrophotometry

Adhami, Khavar; Asadollahzadeh, Hamideh; Ghazizadeh, Mahdieh

doi:10.1016/j.jfca.2020.103457

Cited by 40 publications

(10 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…11 –15 In fact, Cu 2+ ions can be detected and quantified by routine methods with the most common being flame atomic absorption spectrometry with a limit of detection (LoD) at level less than 10 nM. 16 –18 Other methods include the most sensitive, that is, mass spectrometry (coupled to inductively coupled plasma) with an LoD of 5 ng L −1,19,20 as well as optical 21 –24 and electrochemical 14,15,25 techniques. However, the above techniques are laborious and require complicated equipment.…”

Section: Introductionmentioning

confidence: 99%

Verbascoside extracted from Clerodendrum inerme: A natural monomer for the fabrication of a sensitive electrochemical Cu(II) sensor

Tran

2022

Journal of Chemical Research

View full text Add to dashboard Cite

Verbascoside is isolated from the whole plants of the Verbenaceae family and demonstrates significant levels of bioactivity. In this work, we report on the isolation of verbascoside, a phenolic glycoside, from the stems of Clerodendrum inerme collected in Vietnam and verify its structure by comparing its spectroscopic data with those reported in the literature. Verbascoside is then applied as a monomer for the electrochemical deposition of a layer of polyverbascoside onto glassy carbon electrodes toward Cu2+ sensing. Electrochemical results demonstrate that the polyverbascoside-modified glassy carbon electrode is highly selective for Cu2+ ions compared to other evaluated ions including Ni2+ and Co2+. The developed sensor can detect Cu2+ in a concentration range from 0 to 175 μM with a sensitivity of 0.372 µA µM−1 and a limit of detection of 50 nM Cu2+ ions.

show abstract

Section: Introductionmentioning

confidence: 99%

Verbascoside extracted from Clerodendrum inerme: A natural monomer for the fabrication of a sensitive electrochemical Cu(II) sensor

Tran

2022

Journal of Chemical Research

View full text Add to dashboard Cite

show abstract

“…Meanwhile, compared to ILs with the anion [PF 6 ], the ILs with [NTf 2 ] as the anion are generally more hydrophobic. Even more to the point, a novel IL tetra butyl phosphonium phosphate ionic liquid ([TBP][PO 4 ]) was used as an extraction solvent in DLLME for the preconcentration of nickel (II) and copper (II) ions from vegetable oils [87]. Generally, phosphate ions have strong coordination ability and can form soluble complexes with many metal ions.…”

Section: Conventional Il-dllmementioning

confidence: 99%

Ionic Liquid-Assisted DLLME and SPME for the Determination of Contaminants in Food Samples

Cai

Guo²,

Yao

et al. 2022

Separations

View full text Add to dashboard Cite

Developing effective and green methods for food analysis and separation has become an urgent issue regarding the ever-increasing concern of food quality and safety. Ionic liquids (ILs) are a new chemical medium and soft functional material developed under the framework of green chemistry and possess many unique properties, such as low melting points, low-to-negligible vapor pressures, excellent solubility, structural designability and high thermal stability. Combining ILs with extraction techniques not only takes advantage of ILs but also overcomes the disadvantages of traditional extraction methods. This subject has attracted intensive research efforts recently. Here, we present a brief review of the current research status and latest developments regarding the application of IL-assisted microextraction, including dispersive liquid–liquid microextraction (DLLME) and solid-phase microextraction (SPME), in food analysis and separation. The practical applications of ILs in determining toxic and harmful substances in food specimens with quite different natures are summarized and discussed. The critical function of ILs and the advantages of IL-based microextraction techniques over conventional extraction techniques are discussed in detail. Additionally, the recovery of ILs using different approaches is also presented to comply with green analytical chemistry requirements.

show abstract

“…Therefore, various ILs have been used as extraction solvents of DLLME, such as 1-hexyl-3-methylimidazolium hexafluorophosphate ([HMIM][PF6]), 1-butyl-3-methylimidazolium hexafluorophosphate, tetradecyl (trihexyl) phosphonium chloride, and 1-butyl-3-methylimidazolium bis (trifluoromethylsulfonyl) imide [ 23 , 28 ], which are typically recognized as green solvents in analytical chemistry [ 29 ], thereby deriving the IL-DLLME approach. Neurotransmitters [ 30 ], anthraquinones [ 31 ], phthalate esters [ 32 ], organic dyes [ 33 ], metal ions [ 34 , 35 ], pesticides [ 36 , 37 ], antibiotics [ 38 , 39 ], and other biological compounds, as well as food and environmental pollutants, have all been focused using IL-DLLME. However, the IL has not yet been used to extract antifouling biocides from water samples.…”

Section: Introductionmentioning

confidence: 99%

Ionic Liquid-Dispersive Micro-Extraction and Detection by High Performance Liquid Chromatography–Mass Spectrometry for Antifouling Biocides in Water

Zhou

et al. 2023

Molecules

View full text Add to dashboard Cite

A simple analytical method was developed and evaluated for the determination of two antifouling biocides using an ionic liquid-dispersive liquid–liquid micro-extraction (IL-DLLME) and a high-performance liquid chromatography–electrospray ionization mass spectrometry (LC-ESI-MS) analysis. Irgarol 1051 and Sea-Nine 211 were extracted from deionized water, lake water, and seawater using IL 1-hexyl-3-methylimidazolium hexafluorophosphate ([HMIm][PF6]) and ethyl acetate as the extraction solvent and the dispersion solvent. Several factors were considered, including the type and volume of extraction and dispersive solvent, IL amount, sample pH, salt effect, and cooling temperature. The developed method resulted in a recovery range of 78.7–90.3%, with a relative standard deviation (RSD, n = 3) less than 7.5%. The analytes were enriched greater than 40-fold, and the limits of detection (LOD) for two antifouling biocides were 0.01–0.1 μg L−1. The method was effectively applied for the analysis of real samples of freshwater as well as samples of seawater.

show abstract

Preconcentration and determination of nickel (II) and copper (II) ions, in vegetable oils by [TBP] [PO4] IL-based dispersive liquid–liquid microextraction technique, and flame atomic absorption spectrophotometry

Cited by 40 publications

References 23 publications

Verbascoside extracted from Clerodendrum inerme: A natural monomer for the fabrication of a sensitive electrochemical Cu(II) sensor

Verbascoside extracted from Clerodendrum inerme: A natural monomer for the fabrication of a sensitive electrochemical Cu(II) sensor

Ionic Liquid-Assisted DLLME and SPME for the Determination of Contaminants in Food Samples

Ionic Liquid-Dispersive Micro-Extraction and Detection by High Performance Liquid Chromatography–Mass Spectrometry for Antifouling Biocides in Water

Contact Info

Product

Resources

About