Sulfamethizole functionalized graphene oxide for invitro separation and determination lead in blood serum of battery manufactories workers by syringe filter-dispersivemicro solid phase extraction
سال انتشار: 1399
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 36
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شناسه ملی سند علمی:
JR_AMECJ-3-4_001
تاریخ نمایه سازی: 14 آذر 1402
چکیده مقاله:
The toxic effect of lead (Pb) causes to anemia and iron deficiency in
human body. So, the lead determination in blood/serum samples is very
important. In this study, a novel adsorbent based on sulfamethizole
functionalized on nanographene oxide (C۳H۱۰N۴O۲S۲-NGO; SMNGO)
was used for extraction of Pb(II) from human blood, serum and
plasma samples in battery manufactories workers by syringe filterdispersive-
micro solid phase extraction procedure (SF-D-μ-SPE). By
procedure, ۲۵ mg of SM-NGO mixed with ۱۰ mL of human blood/
serum or plasma samples and aspirated by ۱۰ mL of syringe tube.
After sonication of samples for ۵ min, the Pb ions adsorbed based on
sulfur of SM-NGO adsorbent at pH=۶ and the solid phase separated
by syringe coupled to Millex-FG hydrophobic PTFE membrane
(۰.۲ μm). Then, the lead ions were back-extracted from SM-NGO/
PTFE by elution phase with ۰.۵ mL of nitric acid solution (۰.۵ M).
Finally, the concentrations of Pb(II) ions were determined by atom
trap flame atomic absorption spectrometry (AT-FAAS) after dilution
with DW up to ۱ mL. After optimization, the linear range (LR), LOD
and enrichment factor (EF) for Pb ions was obtained, ۱۰-۵۰۰ μg
L-۱, ۲.۵ μg L-۱ and ۹.۸۶, respectively. The validation of procedure
was confirmed by electhermal atomic absorption spectrophotometer
(ET-AAS) and certified reference material (NIST, CRM) in human
samples.
کلیدواژه ها:
Lead ، Human blood/serum ، Sulfamethizole ، Nano graphene oxide ، Syringe filter ، Dispersive-micro solid phase extraction
procedure
نویسندگان
Abhijit De
HITech institute of theoretical and computational chemistry, Shivakote, Hesaraghatta Hobli, Bengaluru, India
Mojtaba Mostafavi
Department of Chemistry, Iranian-Australian Community of Science, Hobart, University of Tasmania, Australia