Preconcentration and determination of naproxen in water samples by functionalized multi-walled carbon nanotubes hollow fiber solid phase microextraction—HPLC
- Authors: Akhlaghi H.1, Ghorbani M.1, Lahoori N.A.1, Shams A.1, Seyedin O.1
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Affiliations:
- Department of Chemistry, Mashhad Branch
- Issue: Vol 71, No 7 (2016)
- Pages: 641-647
- Section: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/181839
- DOI: https://doi.org/10.1134/S1061934816070091
- ID: 181839
Cite item
Abstract
A simple, sensitive and selective solid phase microextraction with hollow fiber-supported multi-walled carbon nanotube functionalization reinforced sol–gel combined HPLC method was proposed for the determination of naproxen in tap, well and river water samples. In this method, functionalized multi-walled carbon nanotubes (MWCNTs) were prepared and held in pores of hollow fiber with sol–gel technology by immersion of polypropylene hollow fiber segment into the sol of the functionalized MWCNTs/silica composite and ultrasonically treated at room temperature. Effect of main parameters such as volume of donor phase, pH, extraction time, desorption time, type of desorption solvent, sample ionic strength and stirring rate were studied. Under optimum conditions, linearity was observed in the range of 0.03–500 ng/mL, with correlation coefficients of 0.997. The relative standard deviation for three replicate determinations of 50 ng/mL of naproxen was 4.3%. Limit of detection and pre-concentration factor were 0.008 ng/mL and 198, respectively. In order to check the applicability of the proposed method, it was used to determine trace levels of naproxen in different water samples.
About the authors
Hossein Akhlaghi
Department of Chemistry, Mashhad Branch
Email: ghorbani267@yahoo.com
Iran, Islamic Republic of, Mashhad
Mahdi Ghorbani
Department of Chemistry, Mashhad Branch
Author for correspondence.
Email: ghorbani267@yahoo.com
Iran, Islamic Republic of, Mashhad
Nahid Afshar Lahoori
Department of Chemistry, Mashhad Branch
Email: ghorbani267@yahoo.com
Iran, Islamic Republic of, Mashhad
Alireza Shams
Department of Chemistry, Mashhad Branch
Email: ghorbani267@yahoo.com
Iran, Islamic Republic of, Mashhad
Orkideh Seyedin
Department of Chemistry, Mashhad Branch
Email: ghorbani267@yahoo.com
Iran, Islamic Republic of, Mashhad