Development of effervescence-assisted liquid phase microextraction based on fatty acid for determination of silver and cobalt ions using micro-sampling flame atomic absorption spectrometry

Moghadam, Ahmad Ghoochani; Rajabi, Maryam; Hemmati, Maryam; Asghari, Alireza

doi:10.1016/j.molliq.2017.07.038

Cited by 56 publications

(4 citation statements)

References 39 publications

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“…9 Note that a reverse approach to SHSs can also be accomplished with fatty acids, in which case a base like Na CO 2 3 can be used to initiate switching. 10,11 The switching characteristic makes SHSs ideal green alternatives to volatile organic compounds (VOCs) in separation and extraction technology. In a typical process, the SHS is used to separate a targeted chemical from another phase.…”

Section: Introductionmentioning

confidence: 99%

“…Apart from using

\,{\text{CO}}_{2}

to generate carbonic acid in water, 3–5 some common triggers that have been used to switch SHSs include HCl, 6–8

\,{{\rm{H}}}_{2}{\text{SO}}_{4}

, and

\,{{\rm{H}}}_{3}{\text{PO}}_{4}

9 . Note that a reverse approach to SHSs can also be accomplished with fatty acids, in which case a base like

\,{\text{Na}}_{2}{\text{CO}}_{3}

can be used to initiate switching 10,11 …”

Section: Introductionmentioning

confidence: 99%

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Hydrophilic solvent recovery from switched‐on microdroplet dissolution

Billet,

Zeng,

et al. 2023

Droplet

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Switchable hydrophilicity solvents (SHSs) are a unique class of chemical compounds that can be switched between their hydrophobic and hydrophilic forms. The switchable characteristics allow SHSs to be used as emerging, green solvents for sustainable extraction and separation technology. In the production of polymeric microparticles from recycled plastics, SHSs are used to dissolve the polymer and then are switched to the hydrophilic form for separation from the generated polymeric microparticles. However, it is extremely difficult to fully recover the SHS residue from the mixtures. In this work, we will identify the key parameters that determine the level of the solvent residue during the switched‐on dissolution of emulsion microdroplets. The SHS N,N‐dimethylcyclohexylamine from solvent–polymer binary emulsion droplets was switched to the hydrophilic, water‐soluble form, triggered by addition of an acid in the surrounding aqueous phase. By applying a sensitive detection method developed in this work, we compared the levels of SHS residue in polymer microparticles obtained under 30 different dynamical and chemical conditions for the switching processes. The quantitative analysis revealed that residue levels remained constant at varied addition rates and concentration of the trigger solution, but decreased with the increase in organic phase fractions or the decrease in the emulsion temperature. Trapped water in the drops during switched‐on dissolution may have contributed to the high level of solvent residue. The understanding of the new possible mechanism for residual solvent reported in this work may help develop effective approaches for the recovery of switchable solvents in environmentally friendly separation processes.

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Section: Introductionmentioning

confidence: 99%

“…Apart from using

\,{\text{CO}}_{2}

to generate carbonic acid in water, 3–5 some common triggers that have been used to switch SHSs include HCl, 6–8

\,{{\rm{H}}}_{2}{\text{SO}}_{4}

, and

\,{{\rm{H}}}_{3}{\text{PO}}_{4}

9 . Note that a reverse approach to SHSs can also be accomplished with fatty acids, in which case a base like

\,{\text{Na}}_{2}{\text{CO}}_{3}

can be used to initiate switching 10,11 …”

Section: Introductionmentioning

confidence: 99%

Hydrophilic solvent recovery from switched‐on microdroplet dissolution

Billet,

Zeng,

et al. 2023

Droplet

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“…6,7 Furthermore, a lack of cobalt in the human body can result in severe retardation, anorexia, and megaloblastic anemia. 6 As a result, there is a growing interest and need for a cost-effective, quick, easy, and sensitive approach for detecting metals in environmental samples. Aluminum is a common metal that causes both biotoxicity and phytotoxicity.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Because it is an essential component of the vitamin B12 complex and the major metallic component of thiamine, cobalt plays a significant role in a variety of physiological activities. High levels of cobalt in the human body, on the other hand, can impair heart muscles, produce an overproduction of red blood cells, irritate the lungs, induce bone abnormalities, and hurt the thyroid gland. , Furthermore, a lack of cobalt in the human body can result in severe retardation, anorexia, and megaloblastic anemia . As a result, there is a growing interest and need for a cost-effective, quick, easy, and sensitive approach for detecting metals in environmental samples.…”

Section: Introductionmentioning

confidence: 99%

Functionalized MOF as a Sensitive Spectroscopic Probe for Hg²⁺, Co²⁺, and Al³⁺ Ions Detection in Aqueous Media

et al. 2022

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A modified metal–organic framework (MOF) named Al-MIL-53-N=SA-Br was synthesized via a Schiff-base reaction between the MOFs (Al-MIL-53-NH 2 ) and 5-bromo salicylaldehyde. The robust functionalized Al-MIL-53-N=SA-Br was used as a novel spectrophotometric sensor for detecting Hg 2+ , Co 2+ , and Al 3+ ions. In a wide range of concentrations, the absorption spectral intensity of Al-MIL-53-N=SA-Br increased linearly upon increasing the concentration of Hg 2+ , Co 2+ , and Al 3+ ions. The limit of detection (LOD) of the proposed Al-MIL-53-N=SA-Br sensor reached 1.52 ppm of Hg 2+ ion (7.56 × 10 –9 M). Therefore, this study introduces a novel ratiometric Hg 2+ , Co 2+ , and Al 3+ ions chemosensor. Simple treatment using thiourea or ethylenediaminetetraacetic acid can remove the metal ions from the used sensor and use it many times with a high efficiency. In addition, the Al-MIL-53-N=SA-Br sensor has a high adsorption capacity for these metal ions. The design of the robust Al-MIL-53-N=SA-Br sensor provided high stability, reproducibility, selectivity, high sensitivity, and a facile sensing design. Furthermore, the good absorption spectral stability of Al-MIL-53-N=SA-Br in aqueous media, the broad linear in sensing, and the low LOD of the Hg 2+ , Co 2+ , and Al 3+ ions show its high potential in determining these ions in real water.

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Switchable‐hydrophilicity solvent liquid‐liquid microextraction versus dispersive liquid‐liquid microextraction prior to HPLC‐UV for the determination and isolation of piperine from Piper nigrum L

Al‐Nidawi

Alshana

Caleb

et al. 2020

J of Separation Science

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Switchable‐hydrophilicity solvent liquid‐liquid microextraction and dispersive liquid‐liquid microextraction were compared for the extraction of piperine from Piper nigrum L. prior to its analysis by using high‐performance liquid chromatography with UV detection. Under optimum conditions, limits of detection and quantitation were found as 0.2–0.6 and 0.7–2.0 μg/mg with the two methods, respectively. Calibration graphs showed good linearity with coefficients of determination (R2) higher than 0.9962 and percentage relative standard deviations lower than 6.8%. Both methods were efficiently used for the extraction of piperine from black and white pepper samples from different origins and percentage relative recoveries ranged between 90.0 and 106.0%. The results showed that switchable‐hydrophilicity solvent liquid‐liquid microextraction is a better alternative to dispersive liquid‐liquid microextraction for the routine analysis of piperine in food samples. A novel scaled‐up dispersive liquid‐liquid microextraction method was also proposed for the isolation of piperine providing a yield of 102.9 ± 4.9% and purity higher than 98.0% as revealed by NMR spectroscopy.

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Development of effervescence-assisted liquid phase microextraction based on fatty acid for determination of silver and cobalt ions using micro-sampling flame atomic absorption spectrometry

Cited by 56 publications

References 39 publications

Hydrophilic solvent recovery from switched‐on microdroplet dissolution

Hydrophilic solvent recovery from switched‐on microdroplet dissolution

Functionalized MOF as a Sensitive Spectroscopic Probe for Hg²⁺, Co²⁺, and Al³⁺ Ions Detection in Aqueous Media

Switchable‐hydrophilicity solvent liquid‐liquid microextraction versus dispersive liquid‐liquid microextraction prior to HPLC‐UV for the determination and isolation of piperine from Piper nigrum L

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Development of effervescence-assisted liquid phase microextraction based on fatty acid for determination of silver and cobalt ions using micro-sampling flame atomic absorption spectrometry

Cited by 56 publications

References 39 publications

Hydrophilic solvent recovery from switched‐on microdroplet dissolution

Hydrophilic solvent recovery from switched‐on microdroplet dissolution

Functionalized MOF as a Sensitive Spectroscopic Probe for Hg2+, Co2+, and Al3+ Ions Detection in Aqueous Media

Switchable‐hydrophilicity solvent liquid‐liquid microextraction versus dispersive liquid‐liquid microextraction prior to HPLC‐UV for the determination and isolation of piperine from Piper nigrum L

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Functionalized MOF as a Sensitive Spectroscopic Probe for Hg²⁺, Co²⁺, and Al³⁺ Ions Detection in Aqueous Media