Journal of Liquid Chromatography and Related Technologies, ( ISI ), Volume (36), No (3), Year (2013-3) , Pages (750-769)

Title : ( Pre-Concentration and Determination of β-Blockers Using Carbon Nanotube-Assisted Pseudo-Stirbar Hollow Fiber... )

Authors: Ali Sarafraz Yazdi , Mohamad Reza Abedi , Zarrin Eshaghi ,

Access to full-text not allowed by authors

Citation: BibTeX | EndNote

& A method termed pseudo-stir bar hollow fiber solid=liquid phase microextraction (HF-SLPME) was utilized to extract three b-blockers—atenolol, metoprolol, and propranolol—in environmental waters. The extracted b-blockers were then separated, identified, and quantified by highperformance liquid chromatography with fluorescence detection. In HF-SLPME a porous polypropylene hollow fiber filled with MWCNTs reinforced organic solvent that acts as an analyte trap to pre-concentrate b-blockers from water samples. Both ends of the hollow fiber segment are sealed with magnetic stoppers. This device is placed inside the aqueous feed solution and plays the rule of a pseudo-stir bar. The effective parameters are optimized. The extracted b-blockers were analyzed at room temperature by high-performance liquid chromatography-fluorescence detection. The results showed that practical pre-concentration factors varied from 25.2–822. Under the optimized extraction conditions, the method showed good linearity and low limits of detections, 15.0, 10.0, 1.0 lgL 1 for atenolol, metoprolol, and propranolol, respectively. Relative recovery of b-blockers in real water samples were between 89.7–93.1 for tap water, 88.9–90.7 for clinical waste water, and 91.2–93.8 for industrial waste water with RSDs between 0.7–1.4%.

Keywords

, b-blockers, carbon nanotube, fluorescence detection, hollow fiber solid= liquid phase microextraction (HF-SLPME),
برای دانلود از شناسه و رمز عبور پرتال پویا استفاده کنید.

@article{paperid:1033032,
author = {Sarafraz Yazdi, Ali and Mohamad Reza Abedi and Zarrin Eshaghi},
title = {Pre-Concentration and Determination of β-Blockers Using Carbon Nanotube-Assisted Pseudo-Stirbar Hollow Fiber...},
journal = {Journal of Liquid Chromatography and Related Technologies},
year = {2013},
volume = {36},
number = {3},
month = {March},
issn = {1082-6076},
pages = {750--769},
numpages = {19},
keywords = {b-blockers; carbon nanotube; fluorescence detection; hollow fiber solid= liquid phase microextraction (HF-SLPME); HPLC},
}

[Download]

%0 Journal Article
%T Pre-Concentration and Determination of β-Blockers Using Carbon Nanotube-Assisted Pseudo-Stirbar Hollow Fiber...
%A Sarafraz Yazdi, Ali
%A Mohamad Reza Abedi
%A Zarrin Eshaghi
%J Journal of Liquid Chromatography and Related Technologies
%@ 1082-6076
%D 2013

[Download]