University of Jiroft | Mohammadjavad Jahanshahi

Research

Title	Solid phase extraction of acetaminophen by magnetic expanded graphite sorbentfunctionalized with glycine and its quantitative determination by gold-silver nanoparticlefunctionalized with polyethyleneimine as a colorimetric sensor
Type	Presentation
Keywords	Acetaminophen ، Expanded graphite ، Gold-silver nanoparticles ، Magnetic sorbent
Researchers	Fateme Mohseni Nasrabad, Ali Mohammad Haji Shabani, Shayessteh Dadfarnia, Roya Afsharipour, Mohammadjavad Jahanshahi

Abstract

A solid phase extraction method using magnetic expanded graphite sorbent was proposed for theseparation and preconcentration of acetaminophen. The effect of important parameters on the extraction ofanalyte was studied and optimized. The extracted acetaminophen was measured by gold-silver nanoparticlefunctionalized with polyethyleneimine as a colorimetric sensor. The linear range was achieved in the range of0.1-20.0 μg L-1 for acetaminophen (R2 = 0.9972) with a limit of detection of 0.029 g L-1. The intra-and inter-dayrelative standard deviations for six measurements at the concentration level of 5.0 μg L-1 acetaminophen werefound to be 2.6 and 4.2 % respectively