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Extraction of Sudan dyes from environmental water by hemimicelles-based magnetic titanium dioxide nanoparticles.
- Source :
-
Environmental science and pollution research international [Environ Sci Pollut Res Int] 2014 Nov; Vol. 21 (21), pp. 12382-9. Date of Electronic Publication: 2014 Jun 18. - Publication Year :
- 2014
-
Abstract
- A novel method for the extraction of Sudan dyes including Sudan I, II, III, and IV from environmental water by magnetic titanium dioxide nanoparticles (Fe3O4@TiO2) coated with sodium dodecylsulfate (SDS) as adsorbent was reported. Fe3O4@TiO2 was synthesized by a simple method and was characterized by transmission electron microscopy, Fourier-transform infrared spectrometry, and vibrating sample magnetometer. The magnetic separation was quite efficient for the adsorption and desorption of Sudan dyes. The effect of the amount of SDS, extraction time, pH, desorption condition, maximal extraction volume, and humic acid on the extraction process were investigated. This method was employed to analyze three environmental water samples. The results demonstrated that our proposed method had wide linear range (25-5,000 ng L(-1)) with a good linearity (R (2) > 0.999) and low detection limits (2.9-7.3 ng L(-1)). An enrichment factor of 1,000 was achieved. In all three spiked levels (25, 250, and 2,500 ng L(-1)), the recoveries of Sudan dyes were in the range of 86.9-93.6 %. The relative standard deviations obtained were ranging from 2.5 to 9.3 %. That is to say, the new method was fast and effective for the extraction of Sudan dye from environmental water.
- Subjects :
- Adsorption
Chromatography, High Pressure Liquid
Coloring Agents analysis
Limit of Detection
Microscopy, Electron, Transmission
Sodium Dodecyl Sulfate
Spectroscopy, Fourier Transform Infrared
Water Pollutants, Chemical analysis
Coloring Agents isolation & purification
Environmental Monitoring methods
Fresh Water chemistry
Metal Nanoparticles chemistry
Solid Phase Extraction methods
Titanium chemistry
Water Pollutants, Chemical isolation & purification
Subjects
Details
- Language :
- English
- ISSN :
- 1614-7499
- Volume :
- 21
- Issue :
- 21
- Database :
- MEDLINE
- Journal :
- Environmental science and pollution research international
- Publication Type :
- Academic Journal
- Accession number :
- 24938811
- Full Text :
- https://doi.org/10.1007/s11356-014-3153-8