Cadmium separation in human biological samples based on captopril-ionic liquid paste on graphite rod before determination by electrothermal atomic absorption spectrometry
Publish Year: 1398
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_AMECJ-2-4_006
تاریخ نمایه سازی: 14 آذر 1402
Abstract:
A mixture of captopril nanoparticles (CAP-NPs) and ionic liquid (IL,
[HMIM] [PF۶]) paste on micro graphite rod (CAP-IL-MGR) and was
used for separation cadmium in human serum and urine samples by
micro solid phase extraction (μ-SPE). ۰.۰۱ g of CAP-NPs and ۰.۱ g
of [HMIM] [PF۶] mixed with ۱ mL of acetone and mixture passed
physically on micro graphite rod (MGR) at ۵۵oC. Then, the graphite
probe placed on ۱۰ mL of human biological samples with ۵ min of
sonication, then cadmium ions complexed by thiol group of captopril
(CAP-SH) at pH=۵.۵. The cadmium ions on micro probe were back
extracted with ۰.۲۵ mL of nitric acid (۰.۵ M) which was diluted with
DW up to ۰.۵ mL and finally, the cadmium concentration determined
by ET-AAS. By optimizing of amount of captopril, the absorption
capacity and recovery were obtained ۱۳۲.۴ mg g-۱ and more than
۹۶%, respectively. The limit of detection (LOD), linear range (LR)
and enrichment factor (EF) were achieved ۲ ngL-۱, ۰.۰۱-۰.۳۵ μg L-۱
and ۱۹.۷, respectively (RSD %<۵%). The validation was done by
certified reference material (CRM, NIST) and ICP-MS analysis.
Keywords:
Cadmium , Human samples , Captopril , Ionic liquid , Micro graphite rod , Micro solid phase extraction
Authors
Kian Azami
Faculty of Pharmacy, Department of Toxicology Pharmacology, Tehran University of Medical Science, Tehran, Iran
Mehdi Aliomrani
Department of Toxicology and Pharmacology, School of pharmacy, Isfahan University of Medical Sciences (IUMS), Isfahan, Iran
Mostafa Dehghani Mobarake
Energy Technology Research Division, Research Institute of Petroleum Industry (RIPI), Tehran, Iran- Department of Chemistry, University of Siegen, North Rhine Westphalia, Adolf-Reichwein-Straße ۲, ۵۷۰۷۶, Siegen, Germany