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자료유형
학술저널
저자정보
저널정보
한국환경분석학회 환경분석과 독성보건 한국환경분석학회지 제16권 제4호
발행연도
2013.1
수록면
256 - 265 (10page)

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Significant concern has been laid on the environmental safety of nanoparticles due to their exposure and toxicity to human and ecosystems. Among the research topics, detection and analysis of nanoparticles in the environmental matrix is regarded as the most important and pressing work. Owing to its precise and accurate analytical power to inorganics, inductively coupled plasma mass spectrometry (ICP-MS) is a very promising tool to detect metal nanoparticles in the environmental samples. Here, we introduced the principles and procedures of on Realtime Single Particle mode ICP-MS (RTSP-ICP-MS) technique and evaluated its applicability to citrate-coated silver nanoparticles (AgNPs). RTSP-ICP-MS determined AgNPs of 60 nm and 100 nm to 53.0±7.4 nm and 103.6±13.8 nm, respectively, which were the number-weighted average sizes. Comparative measurements suggested that sizes by Transmission Electron Microscopy (TEM) were 60.1±3.7 nm and 96.8±9.5nm and z-averages by Dynamic Light Scattering (DLS) were 59.1±0.2 nm and 95.3±0.8 nm, respectively. The results prove the feasibility of RTSP-ICP-MS for metal-nanoparticles. We have many challenges to be overcome for detection and measurement of metal nanoparticles in environmental samples such as fresh water,wastewater, sludges, sediments and soils.

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