Jump to main content
Jump to site search


Conjunction of a new ultrasonic assisted dispersive soild phase extraction method with HPLC-DAD for trace determination of diazinon in biological and water media

Abstract

Herein, a new ultrasonic assisted dispersive solid phase extraction method using a TiO2/magnetic graphene based sorbent in conjunction with HPLC-diode array detection (HPLC-DAD) was successfully developed for trace detection of diazinon. Initially, the TiO2/magnetic graphene based sorbent was successfully synthesized and subsequently characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), energy-dispersive X-ray spectroscopy (EDS) and elemental mapping techniques. Then, the sorbent was used for the sorption and extraction of diazinon mainly through π-π stacking hydrophobic interactions. Under the optimized conditions, the calibration curves were linear over the concentration range of 0.8-800 µg/L for urine, plasma and milk samples and 0.2-200 µg/L for water samples. The method detection limits were determined to be in the range of 0.05-0.3 µg/L based on a signal-to-noise ratio of 3 (S/N=3). To test the extraction efficiency, the method was applied to various fortified real samples. The average recoveries obtained from the fortified samples varied between 92 - 104% with the relative standard deviations of 6.1 - 10.2%. Finally, the method was determined to be effective for diazinon environmental and biological analysis.

Back to tab navigation

Supplementary files

Publication details

The article was received on 05 Oct 2017, accepted on 25 Jan 2018 and first published on 05 Feb 2018


Article type: Paper
DOI: 10.1039/C7NJ03788K
Citation: New J. Chem., 2018, Accepted Manuscript
  •   Request permissions

    Conjunction of a new ultrasonic assisted dispersive soild phase extraction method with HPLC-DAD for trace determination of diazinon in biological and water media

    M. Behbahani, A. Veisi, F. Omidi, M. Yegane Badi, A. R. Noghrehabadi, A. Esrafily and H. R. Sobhi, New J. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C7NJ03788K

Search articles by author

Spotlight

Advertisements