Speciation of organic/inorganic mercury and total mercury in blood samples using vortex assisted dispersive liquid-liquid microextraction based on the freezing of deep eutectic solvent followed by GFAAS

Akramipour, Reza; Golpayegani, Mohammad Reza Hashemi; Gheini, Simin; Fattahi, Nazir

doi:10.1016/j.talanta.2018.04.042

Cited by 118 publications

(30 citation statements)

References 33 publications

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“…To optimize the effects of the time for the extraction of pyrethroids in mushroom, different vortex durations were investigated within the range of 0–15 min and the recoveries of the analytes obtained are shown in Figure . With an increased vortex duration, extraction recoveries showed a significant increase until 10 min; because a stronger vortex can make the organic phase and water phase form an emulsion, numbers of tiny droplets of the extraction solvent formed by vortex duration, increasing the dispersal of extraction solvent in sample solution and increasing the contact area, to obtain higher extraction recovery in a shorter time, 10 min was chosen as the optimum time of extraction for further investigations.…”

Section: Resultsmentioning

confidence: 99%

Vortex‐assisted Emulsification Microextraction for the Determination of Pyrethroids in Mushroom

Zhao

Jing

Chang

et al. 2019

Bulletin Korean Chem Soc

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In this research, a novel method—namely vortex‐assisted emulsification microextraction—was introduced for the determination of pyrethroids (flucythrinate, beta‐cypermethrin, and fenvalerate) in mushrooms (Agaricus bisporus, Lentinula edodes, Auricularia auricular, and Flammulina velutiper). A green solvent 1‐dodecanol was used as the extraction solvent. The low freezing point makes 1‐dodecanol easy to solidify and separate after retention in an ice bath. To avoid the use of dispersion solvents, vortex agitation was applied instead to increase the contact area between extraction solvent and samples. The type and volume of extraction solvent, time of extraction, and addition of sodium chloride were optimized. Under optimal conditions, linear responses were obtained within 1–100 μg/g (R2 ≥ 0.999). The extraction recovery was within 70.2–89.2% with relative standard deviations of less than 8.1%. This method was simple, fast, and environmentally friendly, and was successfully applied to extract and analyze pyrethroids in Agaricus bisporus, Lentinula edodes, Auricularia auricular, and Flammulina velutiper.

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Section: Resultsmentioning

confidence: 99%

Vortex‐assisted Emulsification Microextraction for the Determination of Pyrethroids in Mushroom

Zhao

Jing

Chang

et al. 2019

Bulletin Korean Chem Soc

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“…Liquid-phase microextraction (LPME) [14], solid-phase microextraction (SPME) [15], and other miniaturized sample preparation technologies are widely used for the enrichment and concentration of trace compounds in various complex samples. Compare with recent microextraction techniques for determination of organic and inorganic compounds such as microextraction based on deep eutectic solvent [16][17][18], continuous sample drop flow microextraction [19], dispersive liquid-liquid microextraction based on solidification of floating organic drop [20][21][22] and solid phase extraction combined with dispersive liquid-liquid microextraction [23], LPME and SPME have the advantages of simple operation, minimal organic solvent use, low cost, low environmental impact, and high enrichment factor (EF); thus, they are suitable for modern drug analysis. In 2007, Khalili-Zanjani et al [24] proposed a new LPME method i.e., solidification of a floating organic drop liquid-phase microextraction (SFOD-LPME), for the pre-enrichment of polyaromatic hydrocarbons in well-water samples.…”

Section: Electronic Supplementary Materialsmentioning

confidence: 99%

Application of solidified floating double-solvent dispersive liquid-phase microextraction for the analysis of the main active components in Zicao Chengqi decoction

Geng

Chen

et al. 2020

SN Appl. Sci.

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A new method was established using solidified floating double-solvent dispersive liquid-phase microextraction combined with high-performance liquid chromatography (HPLC) for the simultaneous determination and extraction of six active ingredients from Aurantii Fructus Immaturus, Magnoliae Officinalis Cortex, Rhei Radix et Rhizoma, and Arnebiae Radix in the Zicao Chengqi decoction. The six active ingredients in Zicao Chengqi decoction include naringenin, honokiol, shikonin, magnolol, emodin, and β,β-dimethylacrylshikonin. In this experiment, the effects of the extractant type and volume, sample phase volume, sample phase pH, extraction time, and stirring speed on the enrichment factor were studied, and optimal extraction conditions were determined. Naringenin (6-600 ng/mL), honokiol (3-219 ng/mL), shikonin (4-350 ng/mL), magnolol (3-230 ng/mL), emodin (3-190 ng/mL), and β,β-dimethylacrylshikonin (3-430 ng/mL) had a good linear relationship and all the correlation coefficients were 0.9900-0.9992. This method was used for the simultaneous concentration and enrichment of the six active ingredients from the Chinese herbal compound, Zicao Chengqi decoction, with recoveries between 95.7 and 100.3%. The results showed that solidified floating double-solvent dispersive liquid-phase microextraction combined with HPLC can be used for the simultaneous extraction and analysis of multiple active components in the Zicao Chengqi decoction.

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“…Complex matrix such as blood can also be prepared with DESs by agitation and freezing. A green solvent consisting of 1-octyl-3-methylimidazolium chloride and 1undecanol was used for extraction of organic mercury (R-Hg) and inorganic mercury (Hg 2+ ) [67]. Ultrasound radiation can be introduced for extraction along with DESs to extract Hg 2+ and CH 3 Hg + .…”

Section: Deep Eutectic Solventsmentioning

confidence: 99%

Green sample preparation strategies for organic/inorganic compounds in environmental samples

Cerutti

Pacheco

Gil

et al. 2019

Current Opinion in Green and Sustainable Chemistry

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Speciation of organic/inorganic mercury and total mercury in blood samples using vortex assisted dispersive liquid-liquid microextraction based on the freezing of deep eutectic solvent followed by GFAAS

Cited by 118 publications

References 33 publications

Vortex‐assisted Emulsification Microextraction for the Determination of Pyrethroids in Mushroom

Vortex‐assisted Emulsification Microextraction for the Determination of Pyrethroids in Mushroom

Application of solidified floating double-solvent dispersive liquid-phase microextraction for the analysis of the main active components in Zicao Chengqi decoction

Green sample preparation strategies for organic/inorganic compounds in environmental samples

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