Determination of trace amounts of aromatic amines after magnetic solid-phase extraction using silver-modified Fe3 O4 /graphene nanocomposite

Mohammad Reza Kashefi Alasl; Mahmoud Reza Sohrabi; Mehran Davallo

doi:10.1002/jssc.201800896

Determination of trace amounts of aromatic amines after magnetic solid-phase extraction using silver-modified Fe₃ O₄ /graphene nanocomposite

J Sep Sci. 2019 May;42(9):1777-1785. doi: 10.1002/jssc.201800896. Epub 2019 Mar 20.

Authors

Mohammad Reza Kashefi Alasl¹, Mahmoud Reza Sohrabi¹, Mehran Davallo¹

Affiliation

¹ Department of Chemistry, North Tehran Branch, Islamic Azad University, Tehran, Iran.

PMID: 30811814
DOI: 10.1002/jssc.201800896

Abstract

In this work, a fast and simple magnetic dispersive solid phase extraction methodology was developed utilizing Ag@magnetite nanoparticles@graphene nanocomposite as an efficient magnetic nanosorbent for preconcentration and determine of five aromatic amines in water samples. The sorbent was characterized by diverse characterization techniques. After the extraction, high-performance liquid chromatography with UV detection was utilized to analysis the aromatic amines. The effects of different factors on the extraction process were studied thoroughly via design of experiment and desirability function. Detection limits and linear dynamic ranges were obtained in the range of 0.10-0.20 and 0.3-300 μg/L, respectively. The relative standard deviations (n = 5) were in the range of 4.3-6.5%. Eventually, the method was employed for determination of target aromatic amines in various water samples.

Keywords: aromatic amines; graphene; magnetic dispersive solid-phase extraction; magnetic nanosorbents; silver nanoparticles.