In situ adsorbent formation based dispersive micro-solid phase extraction using a deep eutectic solvent as an elution solvent for the extraction of some pesticides from honey samples prior to GC-MS analysis

2021 ◽  
Author(s):  
Elnaz Marzi Khosrowshahi ◽  
Mahboob Nemati ◽  
Mir Ali Farajzadeh ◽  
Mohammad Reza Afshar Mogaddam
Keyword(s):  
Solid Phase Extraction ◽  
Extraction Method ◽  
Solid Phase ◽  
Deep Eutectic Solvent ◽  
Phase Extraction ◽  
Ms Analysis

In this work, a simple, inexpensive, green, and fast dispersive micro-solid phase extraction method has been developed for the extraction of several pesticides from honey samples.

Development of a magnetic dispersive micro-solid-phase extraction method based on a deep eutectic solvent as a carrier for the rapid determination of meloxicam in biological samples

2020 ◽  
Vol 12 (18) ◽  
pp. 2331-2337
Author(s):  
Samira Rastbood ◽  
Mohammad Reza Hadjmohammadi ◽  
Seyedeh Maedeh Majidi
Keyword(s):  
Solid Phase Extraction ◽  
Biological Samples ◽  
Extraction Method ◽  
Solid Phase ◽  
Rapid Determination ◽  
Deep Eutectic Solvent ◽  
Environmentally Friendly ◽  
Phase Extraction

An environmentally friendly magnetic dispersive micro solid phase extraction based on a deep eutectic solvent as a carrier and disperser of adsorbents.

scholarly journals Fabrication of Water-Compatible Molecularly Imprinted Resin in a Hydrophilic Deep Eutectic Solvent for the Determination and Purification of Quinolones in Wastewaters

Polymers ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 871 ◽  
Author(s):  
Weiyang Tang ◽  
Kyung Ho Row
Keyword(s):  
Ethylene Glycol ◽  
Solid Phase Extraction ◽  
Extraction Method ◽  
Solid Phase ◽  
Choline Chloride ◽  
Deep Eutectic Solvent ◽  
Phase Extraction ◽  
Molecularly Imprinted ◽  
Resin Solid ◽  
Relative Standard

A novel water-compatible molecularly imprinted resin was prepared in a green solvent deep eutectic solvent (DES). Resorcinol and melamine, as functional monomers with an abundant hydrophilic group, such as –OH, –NH2 and –NH–, were introduced into the molecularly imprinted resin (MIR). Three DESs (choline chloride-ethylene glycol, tetramethylammonium bromide-ethylene glycol and tetramethylammonium chloride-ethylene glycol) were used to synthesize the molecularly imprinted resin and the resulting deep eutectic solvent-based molecularly imprinted resins were characterized by particle size analysis, elemental analysis, scanning electron microscopy, Fourier transform infrared spectroscopy and thermogravimetric analysis. The resulting deep eutectic solvent-based molecularly imprinted resins were then applied to the adsorption of quinolones (ofloxacin) in water. The adsorption process of deep eutectic solvent-based molecularly imprinted resin followed the static adsorption model, Langmuir isotherm (R2 ≥ 0.9618) and kinetic model pseudo-second-order (R2 > 0.9814). The highest theory adsorption ability of the three kinds of deep eutectic solvent-based molecularly imprinted resins was more than 23.79 mg/g. The choline chloride-ethylene glycol-based MIR was applied to solid-phase extraction for the determination and purification of quinolones (e.g., ciprofloxacin and ofloxacin). The detection limit of deep eutectic solvent-based molecularly imprinted resin-solid-phase extraction method was less than 0.018 mg/L. The recoveries of the deep eutectic solvent-based molecularly imprinted resin-solid-phase extraction method at three spiked levels were 88.7–94.5%, with a relative standard deviation of ≤4.8%. The novel deep eutectic solvent-based molecularly imprinted resin-solid-phase extraction method is a simple, selective and accurate pre-treatment method and can be used to determine the quinolones in environmental water.

Application of new N- and S-doped amorphous carbon in D-μSPE and its combination with deep eutectic solvent-based DLLME for the extraction of some mycotoxins from soymilk

2021 ◽  
Author(s):  
Anahid Rezaeefar ◽  
Mir Ali Farajzadeh ◽  
Mahboob Nemati ◽  
Mohammad Reza Afshar Mogaddam ◽  
Farzaneh Lotfipour
Keyword(s):  
Solid Phase Extraction ◽  
Amorphous Carbon ◽  
Extraction Method ◽  
Solid Phase ◽  
Deep Eutectic Solvent ◽  
Phase Extraction ◽  
Carbon Based

A new amorphous carbon-based dispersive micro solid-phase extraction method was developed for the extraction and preconcentration of several mycotoxins from soymilk samples.

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