Determination and characterization of metal nanoparticles in clams and oysters
文献类型：期刊论文
| 作者 | Zhou, Qinfei; Liu, Lihong; Liu, Nian ; He, Bin; Hu, Ligang; Wang, Lina
|
| 刊名 | ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
 |
| 出版日期 | 2020-07-15 |
| 卷号 | 198页码:1-10 |
| 关键词 | Metal nanoparticles sp-ICP-MS Shellfish tissue Alkali digestion |
| ISSN号 | 0147-6513 |
| 英文摘要 | With the extensive application of nanotechnology, metal nanoparticles (MNPs) have been widely used, thus are universally detected in the environment. This has caused increasingly concerns due to their toxicity and the potential health risks they pose to humans. In this work, the concentrations and particle size distributions of MNPs and concentrations of associated metal ionic species in shellfish seafood (clams and oysters) were investigated using single particle inductively coupled plasma mass spectrometry (sp-ICP-MS) and inductively coupled plasma mass spectrometry (ICP-MS). The MNPs in the clam and oyster tissues were extracted via an alkaline digestion method with a recovery rate of 95.9% (for gold nanoparticles (AuNPs)). Then total concentrations of 41 metal elements were measured in the two types of seafood, of which 20 were selected for spICP-MS analysis. The results showed that 5 types of MNPs were detectable in clams (Y, La, Ce, Pr, Gd) and 5 types of MNPs were detectable in oysters (Y, La, Ce, Pr, Nd). Size distributions of MNPs in clams and oysters were in the range of 35-55 nm and 30-65 nm, respectively. Nanoparticle concentrations in clams and oysters ranged from 0.6 to 37.7 ng/g and 4.2-19.7 ng/g, and accounted for 3.4%-50% and 5.5%-46% of the total metal content, respectively. Based on this analysis, the health risks of metals in the two kinds of seafood were evaluated by comparing the Provisional Tolerable Weekly Intake (PTWI) with limits recommended by the World Health Organization (WHO)/Food and Agriculture Organization (FAO). These results provide important information about the presence of metal nanoparticles in seafood and, to the best of our knowledge, this is the first time that the nanoparticles of rare earth elements have been detected and reported in bivalve mollusc tissues. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/44653]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Zhou, Qinfei,Liu, Lihong,Liu, Nian,et al. Determination and characterization of metal nanoparticles in clams and oysters[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2020,198:1-10. |
| APA | Zhou, Qinfei,Liu, Lihong,Liu, Nian,He, Bin,Hu, Ligang,&Wang, Lina.(2020).Determination and characterization of metal nanoparticles in clams and oysters.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,198,1-10. |
| MLA | Zhou, Qinfei,et al."Determination and characterization of metal nanoparticles in clams and oysters".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 198(2020):1-10. |
入库方式： OAI收割
来源：生态环境研究中心
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