Solid phase extraction–spectrophotometric determination of fluoride in water samples using magnetic iron oxide nanoparticles

Parham, Hooshang; Rahbar, Nadereh

doi:10.1016/j.talanta.2009.07.045

Cited by 59 publications

(27 citation statements)

References 33 publications

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“…Tumorigenic polynuclear aromatic hydrocarbons such as ergosterol, sulfonamides or salicylic acid have been isolated by magnetic solid-phase extraction. This technique uses magnetic silica functionalized with different organic chains and has demonstrating a reduction in sample pretreatment time and reagents [78,152]. Other authors have reported the use of magnetic molecularly imprinted polymer (MMIP) as the sorbent for the determination of fluoroquinolone antibiotics in environmental water samples.…”

Section: Organic Compoundsmentioning

confidence: 99%

“…The variables examined so far for these magnetic separation techniques have been ligand and particle amounts, pH, ionic strength, contact time and eluent solution, along with properties such as selectivity, maximum capacity and the partition coefficient. Magnetic solid-phase extraction has been successfully applied to transition metal, heavy metal, radio isotope and fluoride ions [25,58,72,[74][75][76]78,79,154].…”

Section: Ions and Inorganic Compoundsmentioning

confidence: 99%

See 1 more Smart Citation

Magnetic solids in analytical chemistry: A review

Aguilar-Arteaga

Rodríguez

Barrado

2010

Analytica Chimica Acta

392

148

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Section: Organic Compoundsmentioning

confidence: 99%

Section: Ions and Inorganic Compoundsmentioning

confidence: 99%

Magnetic solids in analytical chemistry: A review

Aguilar-Arteaga

Rodríguez

Barrado

2010

Analytica Chimica Acta

392

148

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“…Nanotechnology offers new and efficient ways for removal of organic and inorganic pollutants, especially in water, because of the high surface/volume ratio of nanomaterials (11-13). Among these, iron-based nanomaterials as solid phase extractors were promising in the removal of pollutants, because they are easily removed from a water solution using an external magnetic field (3, 14, 15). …”

Section: Introductionmentioning

confidence: 99%

Mercury Removal From Aqueous Solutions With Chitosan-Coated Magnetite Nanoparticles Optimized Using the Box-Behnken Design

Rahbar

Jahangiri

Boumi

et al. 2014

Jundishapur J Nat Pharm Prod

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Background: Nowadays, removal of heavy metals from the environment is an important problem due to their toxicity. Objectives: In this study, a modified method was used to synthesize chitosan-coated magnetite nanoparticles (CCMN) to be used as a low cost and nontoxic adsorbent. CCMN was then employed to remove Hg 2+ from water solutions. Materials and Methods: To remove the highest percentage of mercury ions, the Box-Behnken model of response surface methodology (RSM) was applied to simultaneously optimize all parameters affecting the adsorption process. Studied parameters of the process were pH (5-8), initial metal concentration (2-8 mg/L), and the amount of damped adsorbent (0.25-0.75 g). A second-order mathematical model was developed using regression analysis of experimental data obtained from 15 batch runs. Results: The optimal conditions predicted by the model were pH = 5, initial concentration of mercury ions = 6.2 mg/L, and the amount of damped adsorbent = 0.67 g. Confirmatory testing was performed and the maximum percentage of Hg 2+ removed was found to be 99.91%. Kinetic studies of the adsorption process specified the efficiency of the pseudo second-order kinetic model. The adsorption isotherm was well-fitted to both the Langmuir and Freundlich models. Conclusions: CCMN as an excellent adsorbent could remove the mercury ions from water solutions at low and moderate concentrations, which is the usual amount found in environment.

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“…More recently, magnetic particles which are used as sorbents to separate and preconcentrate analytes from environmental water samples arouse more and more attraction. Due to the great merits of magnetic micro-/nano-particles, many magnetic materials bounded with different functional groups have been synthesized and applied to the extraction of various types of analytes from water sample [24][25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%