Thallium extraction in urine and water samples by nanomagnetic ۴-Aminothieno[۲,۳-d] pyrimidine-۲-thiol functionalized on graphene oxide
Publish Year: 1400
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_AMECJ-4-3_005
تاریخ نمایه سازی: 14 آذر 1402
Abstract:
Thallium is a water-soluble metal and extra dosage has toxicological effect in human body. Thallium is readily absorbed by inhalation, ingestion and skin contact. The symptomatology of thallium toxicity was seen in patients with hemorrhage, bone/gastrointestinal problems, delirium, convulsions and coma. So, accurate determination of thallium in water and human urine is necessary. In this research, a novel and applied method based on ۲۵ mg of nanomagnetic ۴-Aminothieno[۲,۳-d] pyrimidine-۲-thiol functionalized on graphene oxide (Fe۳O۴-ATPyHS@GO) was used for thallium extraction in ۵۰ mL of water, wastewater and urine samples by dispersive magnetic micro solid-phase extraction (DM-μ-SPE). After extraction and back-extraction of solid phase by ۱ mL of nitric acid solution, the concentration of thallium ions determined by flame atomic absorption spectrometry (F-AAS). The working/linear range, the limit of detection (LOD), and preconcentration factor (PF) were achieved (۴-۱۴۰۰ μg L−۱; ۴-۳۰۰ μg L−۱), ۰.۹ μg L−۱, and ۵۰, respectively (Mean RSD%=۱.۸ water; ۲.۱ urine). The absorption capacity of GO and Fe۳O۴-ATPyHS@GO adsorbent were achieved ۷.۲ mg g-۱ and ۱۳۷.۵ mg g-۱ for ۵ mg L-۱ of thallium, respectively. The procedure was validated by ICP-MS analyzer.
Keywords:
Thallium , Water and urine , Nanomagnetic ۴-Aminothieno[۲ , ۳-d] pyrimidine-۲-thiol functionalized on graphene oxide ,
Dispersive magnetic micro solid-phase extraction
Authors
Seyed Jamilaldin Fatemi
Department of Chemistry, Shahid Bahonar University of Kerman, ۱۳۳ -۷۶۱۶۹, Kerman, Iran
Mohammad Reza Akhgar
Department of Chemistry, Faculty of Science, Kerman Branch, Islamic Azad University, Kerman, Iran
Masoud Khaleghi Abbasabadi
Researcher in Nano Technology Center, Research Institute of Petroleum Industry (RIPI), P.O. Box ۱۹۹۸-۱۴۶۶۵, Tehran, Iran