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Thiol modified bimodal mesoporous silica nanoparticles for removal and determination toxic vanadium from air and human biological samples in petrochemical workers
NanoImpact ( IF 4.9 ) Pub Date : 2021-06-24 , DOI: 10.1016/j.impact.2021.100339
Hamid Shirkhanloo 1 , Ali Faghihi-Zarandi 2 , Mostafa Dehghani Mobarake 3
Affiliation  

Investigation of exposure to toxic vanadium (V) in petrochemical workers is very important for human health, and it must be removed and determined in workplace air and human biological samples. In this research, the enriched adsorbent based on the thiol modified bimodal mesoporous silica nanoparticle (HS-UVM7) was used for the extraction vanadium in human blood by the dispersive sonication ionic liquid micro solid phase extraction (DS-IL-μ-SPE) at pH of 4.5. In addition, the vanadium (V) was removed from the industrial workplace air based on HS-UVM7 adsorbent by the liquid-solid phase-gas removal (LSP-GR). In the static and dynamic system, the vanadium (V) was removed from artificial air with HS-UVM7 and compared with the polyvinyl chloride membrane (PCM, sorbent in 7300 NIOSH). The LSP-GR procedure based on HS-UVM7 had more recovery and adsorption capacity as compared to PCM. The adsorption capacity of HS-UVM7 and UVM7 adsorbents were obtained 144.1 mg g−1 and 23.3 mg g−1, respectively. In addition, the main parameters effected on extraction vanadium in blood samples and removal from air were studied and optimized by ET-AAS. The LOD, RSD%, linear range (LR) and enrichment factor (EF) was achieved 0.03 μg L−1, 3.1, 0.1–4.5 μg L−1 and 48.7, respectively for extraction of vanadium in 10 mL of blood samples by the DS-IL-MSPE procedure. The validation of the methodology was confirmed by standard addition to gas phase and using certified reference materials (CRM, NIST) or ICP-MS in human blood samples.



中文翻译:

硫醇改性双峰介孔二氧化硅纳米粒子用于去除和测定石化工人空气和人体生物样品中的有毒钒

调查石化工人接触有毒钒 (V)对人体健康非常重要,必须在工作场所空气和人体生物样本中去除和测定。本研究采用基于硫醇修饰的双峰介孔二氧化硅纳米粒子(HS-UVM 7)的富集吸附剂,通过分散超声离子液体微固相萃取(DS-IL-μ-SPE)萃取人体血液中的钒。在 pH 值为 4.5 时。此外,基于 HS-UVM 7吸附剂通过液-固相-气体去除 (LSP-GR) 从工业工作场所空气中去除钒 (V)。在静态和动态系统中,使用 HS-UVM 7从人工空气中去除钒 (V)并与聚氯乙烯膜(PCM,7300 NIOSH 中的吸附剂)进行比较。与 PCM 相比,基于 HS-UVM 7的 LSP-GR 程序具有更高的回收和吸附能力。HS-UVM 7和UVM 7吸附剂的吸附容量分别为144.1 mg g -1和23.3 mg g -1。此外,利用ET-AAS研究并优化了影响血液样品中钒提取和空气去除的主要参数。LOD、 RSD %、线性范围 (LR) 和富集因子 (EF) 达到 0.03 μg L -1、3.1、0.1–4.5 μg L -1和 48.7,分别用于通过 DS-IL-MSPE 程序提取 10 mL 血液样品中的钒。该方法的验证通过在气相中添加标准并在人体血液样本中使用经认证的参考物质(CRM、NIST)或 ICP-MS 来确认。

更新日期:2021-06-28
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