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Title: Magnetic solid phase extraction based on PVA-TEOS/grafted Fe3O4@ SiO2 magnetic nanofibers for analysis of sulfamethoxazole and trimethoprim in water samples
Journal: Journal of Solid State Chemistry
Author: 1. Ali Mostafavi, Tayebeh Shamspur, 1,2. Fatemeh Mehrabi, 3. Maryam Mohamadi, 4,5. Hamid Hakimi
Year: 2020
Address: 1. Department of Chemistry, Shahid Bahonar University of Kerman, Kerman, Iran 2. Young Research Societies, Shahid Bahonar University of Kerman, Kerman, Iran 3. Pistachio Safety Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, Iran 4. Immunology of Infectious Diseases Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, Iran 5. Department of Microbiology, Faculty of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
Abstract: An effective solid phase extraction method was developed using magnetic nanofiber of polyvinyl alcoholtriethoxysilane modified Fe3O4@SiO2 nanoparticles synthesized by electrospinning method. These nanocomposites were characterized by various method. The suggested method was applied for the extraction of some antibiotics that have amino group in their structures, such as sulfamethoxazole and trimethoprim. Moreover, some of the important parameters that effect on the extraction yield of both drugs were investigated and optimized. Limits of detection and quantitation, linear ranges, and absolute extraction recovery were calculated as 0.0317 and 0.104 mg/L, 0.1–40 mg/L, and 95.1% for sulfamethoxazole and 0.0748 and 0.247 mg/L, 0.3–50 mg/ L, and 98.2% for trimethoprim, respectively. In addition, the obtained results showed that the adsorption isotherm and kinetics follow the Freundlich model and Pseudo-Second-Order, respectively. This sample preparation (pre-concentration) method combined with UV–VIS was successfully used to the extraction of antibiotics in water samples.
Keywords: Solid phase extraction, Sulfamethoxazole, Trimethoprim, Freundlich model, Pseudo-second-order
Application: Extraction
Product Model 1: Electroris (ES1000)
Product Model 2:
URL: #https://www.sciencedirect.com/science/article/abs/pii/S0022459620305466#