Extraction and preconcentration of trace amounts of diazinon and fenitrothion from environmental water by magnetite octadecylsilane nanoparticles

Maddah, Bozorgmehr; Shamsi, Javad

doi:10.1016/j.chroma.2012.07.085

Cited by 98 publications

(34 citation statements)

References 30 publications

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“…2a) 27 A similar X-ray diffraction pattern was observed for the synthesized composite (Fig. 2a) 27 A similar X-ray diffraction pattern was observed for the synthesized composite (Fig.…”

Section: Characterization Of the Ppy/fe 3 O 4 Compositesupporting

confidence: 76%

Magnetic polypyrrole/Fe₃O₄particles as an effective sorbent for the extraction of abamectin from fruit juices using magnetic solid-phase extraction combined with dispersive liquid–liquid microextraction

2015

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In this study, magnetic polypyrrole/Fe 3 O 4 nanoparticles were synthesized and employed as a novel sorbent for the magnetic solid-phase extraction of abamectin (a mixture of avermectines, B 1a and B 1b ), an important insecticide used in agriculture. The properties of the prepared magnetic sorbent were characterized using field emission-scanning electron microscopy, Fourier transform infrared spectroscopy, vibrating sample magnetometry, X-ray diffraction and thermal gravimetric analysis methods. Magnetic solid-phase extraction was carried out together with dispersive liquid-liquid microextraction to enhance preconcentration of abamectin. The effects of the various different parameters influencing the efficiency of the hybrid extraction, such as sorbent amount, extraction time and ionic strength, were investigated and optimized. The enrichment factors obtained using the proposed method were 327 for B 1a and 203 for B 1b . The detection limits of the method under optimized conditions were 0.2 and 1.2 mg L À1 for B 1a and B 1b , respectively. The relative standard deviation obtained for B 1a was 2.1% (n ¼ 5), at a concentration of 5 mg L À1 and that calculated for B 1b was 2.5% at 10 mg L À1 . Calibration curves for abamectin showed linearity in the ranges 0.9-1000 mg L À1 and 5-1000 mg L À1 for B 1a and B 1b , respectively. A comparison of the data obtained using the magnetic polypyrrole/Fe 3 O 4 nanoparticles with data obtained using other sorbents, such as naked Fe 3 O 4 nanoparticles, polypyrrole, C 18 and CNT, demonstrated the superior capability of the synthesized composite. The proposed method was also successfully applied to the extraction of abamectin from fruit juice samples, and satisfactory relative recoveries were obtained. Fig. 1 Chemical structure of abamectin.

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“…2a) 27 A similar X-ray diffraction pattern was observed for the synthesized composite (Fig. 2a) 27 A similar X-ray diffraction pattern was observed for the synthesized composite (Fig.…”

Section: Characterization Of the Ppy/fe 3 O 4 Compositesupporting

confidence: 76%

Magnetic polypyrrole/Fe₃O₄particles as an effective sorbent for the extraction of abamectin from fruit juices using magnetic solid-phase extraction combined with dispersive liquid–liquid microextraction

2015

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“…If the pH rather increased above 9.5, OPPs would be hydrolyzed [34]. After being treated with Fe 3 O 4 -EDTA@Zr(IV) NPs as described in Section 2.5, the eluents were analyzed by GC-MS and extraction recoveries of the OPPs were calculated.…”

Section: Effect Of Phmentioning

confidence: 99%

Zirconium(IV) functionalized magnetic nanocomposites for extraction of organophosphorus pesticides from environmental water samples

Jiang

Huang

Feng

et al. 2016

Journal of Chromatography A

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“…Unfortunately, both the coating and modification processes require multiple steps and are time consuming. 10,11 To maximize the benefits of these magnetic nano materials, efforts should be directed to reduce the time required for achieving these two basic steps. In this respect, microwave assisted synthesis is expected to be promising.…”

Section: Introductionmentioning

confidence: 99%

New Trend for Acceleration Solid Phase Extraction Process Based on Using Magnetic Nano-adsorbents along with Surface Functionalization through Microwave Assisted Solvent-free Technique

Ahmed

Soliman

2015

ANAL. SCI.

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The use of a microwave assisted solvent-free technique for silica coating of iron magnetic nanoparticles (Fe3O4-MNPs) and their functionalization with three aliphatic diamines: 1,2-ethylenediamine (1,2EDA), 1,5-pentanediamine (1,5PDA) and 1.8-octanediamine (1,8-ODA), were successfully achieved in a very short time. Only 60 min were needed for the nano-adsorbent modification as compared with more than 1000 min using conventional methods under reflux conditions. Their surface characteristics (observed by TEM, XRD and FT-IR), in addition to Cu(II) adsorption capacities (1.805, 1.928 and 2.116 mmol g -1 ) and time of equilibration (5 s) were almost the same. Thus, the time required to accomplish the solid phase extraction process is greatly reduced. On the other hand, the phenomenon of the fast equilibration kinetics was successfully extended on using the functionalized aliphatic diamines magnetic nano-adsorbents as precursors for further microwave treatment. Three selective magnetic nano-adsorbents (Fe3O4-MNPs-SiO2-1,2EDA-3FSA, Fe3O4-MNPs-SiO2-1,5PDA-3FSA and Fe3O4-MNPs-SiO2-1,8ODA-3FSA) were obtained via the reaction with 3-formayl salicylic acid (3FSA) as a selective reagent for Fe(III). At 5 s contact time, they exhibited maximum Fe(III) uptake equal to 4.512, 4.987 and 5.367 mmol g -1 , respectively. Furthermore, modeling of values of metal uptake capacity obtained at different shaking time intervals supports pseudo-second order kinetics.

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Extraction and preconcentration of trace amounts of diazinon and fenitrothion from environmental water by magnetite octadecylsilane nanoparticles

Cited by 98 publications

References 30 publications

Magnetic polypyrrole/Fe₃O₄particles as an effective sorbent for the extraction of abamectin from fruit juices using magnetic solid-phase extraction combined with dispersive liquid–liquid microextraction

Magnetic polypyrrole/Fe₃O₄particles as an effective sorbent for the extraction of abamectin from fruit juices using magnetic solid-phase extraction combined with dispersive liquid–liquid microextraction

Zirconium(IV) functionalized magnetic nanocomposites for extraction of organophosphorus pesticides from environmental water samples

New Trend for Acceleration Solid Phase Extraction Process Based on Using Magnetic Nano-adsorbents along with Surface Functionalization through Microwave Assisted Solvent-free Technique

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Extraction and preconcentration of trace amounts of diazinon and fenitrothion from environmental water by magnetite octadecylsilane nanoparticles

Cited by 98 publications

References 30 publications

Magnetic polypyrrole/Fe3O4particles as an effective sorbent for the extraction of abamectin from fruit juices using magnetic solid-phase extraction combined with dispersive liquid–liquid microextraction

Magnetic polypyrrole/Fe3O4particles as an effective sorbent for the extraction of abamectin from fruit juices using magnetic solid-phase extraction combined with dispersive liquid–liquid microextraction

Zirconium(IV) functionalized magnetic nanocomposites for extraction of organophosphorus pesticides from environmental water samples

New Trend for Acceleration Solid Phase Extraction Process Based on Using Magnetic Nano-adsorbents along with Surface Functionalization through Microwave Assisted Solvent-free Technique

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Magnetic polypyrrole/Fe₃O₄particles as an effective sorbent for the extraction of abamectin from fruit juices using magnetic solid-phase extraction combined with dispersive liquid–liquid microextraction

Magnetic polypyrrole/Fe₃O₄particles as an effective sorbent for the extraction of abamectin from fruit juices using magnetic solid-phase extraction combined with dispersive liquid–liquid microextraction