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Coupling of a novel electrospun polyacrylonitrile/amino-Zr-MOF nanofiber as a thin film for microextraction-corona discharge-ion mobility spectrometry for analysis of chlorpyrifos in water samples

Abstract

In this research, polyacrylonitrile/amino functionalized Zr-metal organic framework (PAN/amino-Zr-MOF) nanofiber film was prepared by electrospinning technique and evaluated as a new adsorbent for thin film microextraction before analysis by corona discharge ion mobility spectrometry. Chlorpyrifos as an organophosphorus pesticide utilized to kill a number of insects and worms, was selected as a model compound for investigation of the method. Thermal desorption chamber was used for analyte desorption from a thin film and it's introducing to corona discharge ion mobility spectrometry. The effect of various parameters on extraction efficiency such as desorption temperature, stirring rate, extraction temperature, pH, salt effect and extraction time were studied. The limit of detection and limit of quantification of this method for chlorpyrifos were found to be 0.6 and 2.0 μg/L, respectively, and the linear range was obtained 2.0-200 μg/L. The repeatability and reproducibility of the method was less than 11%. This method was successfully employed for analyzing of chlorpyrifos in agricultural wastewater and river water samples, and the recovery values for spike samples were obtained in the range of 86-109%.

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Publication details

The article was received on 19 Nov 2018, accepted on 05 Jan 2019 and first published on 07 Jan 2019


Article type: Paper
DOI: 10.1039/C8AY02518E
Citation: Anal. Methods, 2019, Accepted Manuscript
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    Coupling of a novel electrospun polyacrylonitrile/amino-Zr-MOF nanofiber as a thin film for microextraction-corona discharge-ion mobility spectrometry for analysis of chlorpyrifos in water samples

    H. Bahrami, B. Rezaei and M. T. Jafari, Anal. Methods, 2019, Accepted Manuscript , DOI: 10.1039/C8AY02518E

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