In vitro speciation of molybdenum in human biological samples based on thiol functionalized mesoporous silica nanoparticles and hexyl-methylimidazolium tris-pentafluoroethyl-trifluorophosphate

Vol 2, Issue 03, Pages 54-64, Sep 2020 *** Field: Analytical Chemistry

  • Roya Ashori Azad university
  • Seyed Alireza Hajiseyed Mirzahosseini, (Corresponding Author)* Department of Environmental Engineering, Faculty of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran
Keywords: Molybdenum, Speciation, Human serum, Ionic liquid, Thiol-functionalized bimodal mesoporous silica nanoparticles, Dispersive-ionic liquid-micro-solid phase extraction

Abstract

Molybdenum (Mo) ions enter to human body from the diet or drinking waters and have a potentially toxic effect on humans. The thiol-functionalized mesoporous silica nanoparticles (HS-MSNPs) were used for determination and speciation of Mo (II, VI) in human biological samples by dispersive ionic liquid-micro-solid phase extraction (DIL-μ-SPE) coupled to electrothermal atomic absorption spectrometry (ET-AAS). Firstly, the mixture of HS-MSNPs (15 mg), the hydrophobic ionic liquid (1-Hexyl-3-methylimidazolium tris(pentafluoroethyl) trifluorophosphate; [HMIM][T(PFE)PF3]) and acetone injected into 10 mL of human blood and serum samples. After shaking for 5 min, the Mo(II) and Mo(VI) ions were extracted with the thiol group of MSNPs at pH 6 and 2, respectively, and collected through IL at the bottom of the conical tube by centrifuging. Then, the MO(II,VI) ions were back-extracted from HS-MSNPs with elent based on changing pH, and remained solutions were determined by ET-AAS after dilution with DW up to 0.5 mL, separately.

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Published
2020-09-30
How to Cite
Ashori, R., & Hajiseyed Mirzahosseini, S. A. (2020). In vitro speciation of molybdenum in human biological samples based on thiol functionalized mesoporous silica nanoparticles and hexyl-methylimidazolium tris-pentafluoroethyl-trifluorophosphate. Analytical Methods in Environmental Chemistry Journal, 3(03), 54-64. https://doi.org/10.24200/amecj.v3.i03.115
Section
Original Article