Separation and determination of mercury from nail and hair in petrochemical workers based on silver carbon nanotubes by microwave-assisted headspace sorbent trap

Vol 3, Issue 02, Pages 21-33,*** Field: Biochemistry Analysis

  • Daniel Soleymani Occupational Health Engineering Department, Modeling in Health Research Center, Institute for Futures Studies in Health, Kerman University of Medical sciences, Kerman, Iran
  • Sahar Zargari Software Engineer, Statistical sciences and engineering, Department of Web development and software engineering, RIPI
  • Ali Faghihi-Zarandi, (Corresponding Author)* Occupational Health Engineering Department, Modeling in Health Research Center, Institute for Futures Studies in Health, Kerman University of Medical sciences
Keywords: Mercury, Nail and Hair, Silver multi-walled carbon nanotubes, Microwave-assisted headspace removal



In this work, a robust method was developed for the determination of mercury in nail and hair in petrochemical workers. By experimental procedure, 100 mg of hair and nail of workers was prepared as a powder which dried in the oven for 20 min at 95oC.  20 mg of hair or nail samples added to reagents (HNO3/H2O2; 5:1) in polyethylene tube (PET) of microwave digestion and the mercury in resulting solution was removed with silver nanoparticles pasted on multi-walled carbon nanotubes (Ag-MWCNTs) which were placed in head space of separator. The mercury vapor was removed by Ag-MWCNTs as the headspace sorbent trap (HSST) under hood conditions. Finally, the mercury was online determined by cold vapor atomic absorption spectrometry after the heat process at 250oC in the presence of Ar gas. The capacity adsorptions of Ag-MWCNTs and MWCNTs for mercury removal were obtained 205.4 mg g-1 and 63.7 mg g-1, respectively.


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How to Cite
Soleymani, D., Zargari, S., & Faghihi-Zarandi, A. (2020). Separation and determination of mercury from nail and hair in petrochemical workers based on silver carbon nanotubes by microwave-assisted headspace sorbent trap. Analytical Methods in Environmental Chemistry Journal, 3(02), 21-33.
Original Article