Nanomedicine Journal

Nanomedicine Journal

Synthesis of graphene oxide-TiO2 nanocomposite as an adsorbent for the enrichment and determination of rutin

Document Type : Research Paper

Authors
Mohammad Reza Gaeeni 1, 2
Marzieh Tohidian 3
Morteza Sasani Ghamsari 1
Mohammad Hossein Majles Ara 2
1 Laser and Optics Research School, Nuclear Science and Technology Research Institute, AEOI, North Karegar, Tehran, Iran
2 Photonic Laboratory, Physics Department, Kharazmi University,Tehran, Iran
3 Faculty of Medicine, Tehran University of Medical Sciences, Pour-Sina Ave, Tehran, Iran
10.7508/nmj.2015.04.004
Abstract
Objective(s): 
In our study, graphene oxide-TiO2 nanocomposite (GO/TiO2) was prepared and used for the enrichment of rutin from real samples for the first time. 
Materials and Methods:  
The synthesized GO/TiO2 was characterized by X-ray diffraction, scanning electron microscopy, and FT-IR spectra.  The enrichment process is fast and highly efficient. The factors including contact time, pH, and amount of GO/TiO2 affecting the adsorption process were studied. 
Results:  
The maximum adsorption capacity for ciprofloxacin was calculated to be 59.5 mg/g according to the Langmuir adsorption isotherm. The method yielded a linear calibration curve in the concentration ranges from 15 to 200 μg/L for the rutin with regression coefficients (r2) of 0.9990. The limits of detection (LODs, S/N=3) and limits of quantification (LOQs, S/N=10) were found to be 8 μg/Land 28 μg/L, respectively. Both the intra-day and inter-day precisions (RSDs) were < 10% . 
Conclusion: 
The developed approach offered wide linear range, and good reproducibility. Owing to the diverse structures and unique characteristic, GO/TiO2 possesses great potential in the enrichment and analysis of trace rutin in real aqueous samples.
Keywords
Enrichment
GO-TiO2
Nanocomposite
Rutin
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Nanomedicine Journal
Volume 2, Issue 4 - Serial Number 4
Autumn 2015
Pages 269-272