Dispersive solid phase extraction using graphitic carbon nitride microparticles for the determination of trace amounts of lead in water samples

Volume 3, Issue 04, Pages 52-59, Dec 2020 *** Field: Environmental Chemistry

  • Ehsan Zolfonoun, (*Corresponding Author) Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, Tehran, Iran
Keywords: Lead, Graphitic carbon nitride, Water, Ultrasound-assisted dispersive micro-solid phase extraction, Inductively coupled plasma- optical emission spectroscopy


In this work, ultrasound-assisted dispersive micro-solid phase extraction (USA-D-µSPE) technique using graphitized carbon nitride (g-C3N4) is proposed for the preconcentration of low level of lead in aqueous samples. In this method, microparticles of graphitized carbon nitride sorbent were dispersed in the samples using ultrasonic bath and Pb(II) ions were directly adsorbed on the surface of g-C3N4 particles. After adsorption and desorption of lead ions from g-C3N4 particles, the Pb concentration was determined by the inductively coupled plasma- optical emission spectroscopy (ICP-OES). The main advantages of this method are high speed, simplicity and cheapness. The effects of pH, sorbent amount, eluent type and time on the recovery of the analyte were investigated. Under the optimized conditions and preconcentration of 10 mL of sample, the detection limit of 1.24 μg L-1 was obtained. The results were validated by standard reference materials (NIST, SRM) and spiking of real samples by USA-D-µSPE procedure. 

Author Biography

Ehsan Zolfonoun, (*Corresponding Author), Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, Tehran, Iran

Material and Nuclear Fuel Research school, Nuclear Science and Technology Research Institute, Tehran, Iran


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How to Cite
Zolfonoun, E. (2020). Dispersive solid phase extraction using graphitic carbon nitride microparticles for the determination of trace amounts of lead in water samples. Analytical Methods in Environmental Chemistry Journal, 3(04), 52-59. https://doi.org/10.24200/amecj.v3.i04.118
Original Article