Trace determination of lead(II) ions by using a magnetic nanocomposite of the type Fe 3 O 4 /TiO 2 /PPy as a sorbent, and FAAS for quantitation
作者: Ali MehdiniaZeynab ShoormeijAli Jabbari
作者单位: 1Iranian National Institute for Oceanography and Atmospheric science
2K. N. Toosi University of Technology
刊名: Microchimica Acta, 2017, Vol.184 (5), pp.1529-1537
来源数据库: Springer Nature Journal
DOI: 10.1007/s00604-017-2156-9
关键词: MSPEMagnetic nanocompositeIn-situ polymerizationScanning electron microscopyEDXFTIRVibrating sample magnetometry
原始语种摘要: The authors describe a magnetic nanoadsorbent consisting of magnetite nanoparticles coated first with titanium dioxide and then with polypyrrole (PPy). It is shown to be a viable material for magnetic solid-phase extraction of trace amount of Pb(II). The magnetic titanium dioxide nanoparticles were synthesized first and then modified with PPy via in-situ electropolymerization. The properties, morphology, and composition of the sorbent were characterized by FTIR, scanning electron microscopy, energy-dispersive X-ray analysis and vibrating sample magnetometry. The effects of pH value, extraction time, type and concentration of eluent, and of sample volume were optimized. Under the optimum conditions, the limit of detection (for S/ N = 3) is 0.28 μg⋅L−1. The maximum adsorption...
全文获取路径: Springer Nature  (合作)
影响因子:3.434 (2012)

  • 射程 吸附
  • sorbent 吸着剂
  • II Interactive Interface
  • determination 测定
  • value 
  • magnetometry 测磁学
  • magnetic 磁的
  • adsorption 吸附
  • range 吸附
  • first 第一
  • conditions 条件式