https://scholars.lib.ntu.edu.tw/handle/123456789/446302
標題: | Comparison of three analytical methods to measure the size of silver nanoparticles in real environmental water and wastewater samples | 作者: | Chang Y.-J. YANG-HSIN SHIH Su C.-H. Ho H.-C. |
關鍵字: | Asymmetric flow field-flow fractionation (AF4); Centrifugation; Hydrodynamic chromatography (HDC); Silver nanoparticle (Ag NP); Single particle-ICP-MS (SP-ICP-MS) | 公開日期: | 2017 | 卷: | 322 | 起(迄)頁: | 95-104 | 來源出版物: | Journal of Hazardous Materials | 摘要: | Due to the widespread application of engineered nanoparticles, their potential risk to ecosystems and human health is of growing concern. Silver nanoparticles (Ag NPs) are one of the most extensively produced NPs. Thus, this study aims to develop a method to detect Ag NPs in different aquatic systems. In complex media, three emerging techniques are compared, including hydrodynamic chromatography (HDC), asymmetric flow field flow fractionation (AF4) and single particle inductively coupled plasma-mass spectrometry (SP-ICP-MS). The pre-treatment procedure of centrifugation is evaluated. HDC can estimate the Ag NP sizes, which were consistent with the results obtained from DLS. AF4 can also determine the size of Ag NPs but with lower recoveries, which could result from the interactions between Ag NPs and the working membrane. For the SP-ICP-MS, both the particle size and concentrations can be determined with high Ag NP recoveries. The particle size resulting from SP-ICP-MS also corresponded to the transmission electron microscopy observation (p?>?0.05). Therefore, HDC and SP-ICP-MS are recommended for environmental analysis of the samples after our established pre-treatment process. The findings of this study propose a preliminary technique to more accurately determine the Ag NPs in aquatic environments and to use this knowledge to evaluate the environmental impact of manufactured NPs. ? 2016 Elsevier B.V. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/446302 | ISSN: | 03043894 | DOI: | 10.1016/j.jhazmat.2016.03.030 | SDG/關鍵字: | Centrifugation; Environmental impact; Flow fields; Fractionation; Health risks; High resolution transmission electron microscopy; Hydrodynamics; Indium compounds; Inductively coupled plasma mass spectrometry; Liquid chromatography; Mass spectrometers; Metal nanoparticles; Particle size; Transmission electron microscopy; Aquatic environments; Asymmetric-flow field flow fractionations; Engineered nanoparticles; Environmental analysis; Hydrodynamic chromatography; Silver nanoparticles (AgNps); Single particle; Transmission electron microscopy observation; Silver nanoparticles; silver nanoparticle; metal nanoparticle; silver; asymmetry; centrifuge; chromatography; comparative study; concentration (composition); detection method; flow field; fractionation; hydrodynamics; mass spectrometry; nanoparticle; particle size; silver; wastewater treatment plant; aquatic environment; Article; asymmetric flow field flow fractionation; centrifugation; chromatography; dispersion; effluent; environmental impact; field flow fractionation; hydrodynamic chromatography; intermethod comparison; limit of detection; mass spectrometry; particle size; photon correlation spectroscopy; single particle inductively coupled plasma mass spectrometry; transmission electron microscopy; waste water; water analysis; analysis; chemistry; mass spectrometry; particle size; procedures; Mass Spectrometry; Metal Nanoparticles; Microscopy, Electron, Transmission; Particle Size; Silver; Waste Water |
顯示於: | 農業化學系 |
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