Elemental composition of laser ablation aerosol particles deposited in the transport tube to an ICP |
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| Institution: | 1. Center for Environmental Nanoscience and Risk, Department of Environmental Health Sciences, University of South Carolina, Columbia, SC 29208, USA;2. Department of Geosciences, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, China;3. Center for NanoBioEarth, Department of Geosciences, Virginia Tech, Blacksburg, VA 24061-0420, USA;4. Institute for Critical Technology and Applied Science, 410 Kelly Hall, Virginia Tech, Blacksburg, VA 24061-0420, USA;5. Biology Department, Duke University, Durham, NC 27708, USA;6. Department of Ecosystem and Conservation Sciences, University of Montana, Missoula, MT 59812, USA;7. College of Agriculture and Life Sciences, Virginia Tech, Blacksburg, VA 24061-0420, USA;8. Geosciences Group, Pacific Northwest National Laboratory, Richland, WA 99354, USA;1. Future Environment Research Center, Korea Institute of Toxicology, Jinju, Republic of Korea;2. School of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju, Republic of Korea;3. Department of Chemistry, Hannam University, Daejeon, Republic of Korea;4. Division of Risk Assessment, Department of Environmental Health Research, National Institute of Environmental Research (NIER), Incheon, Republic of Korea;5. Department of Geology and Research Institute of Natural Science (RINS), Gyeongsang National University (GNU), Jinju, Republic of Korea |
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| Abstract: | The element ratios in aerosol particles produced by laser ablation (λ=266 nm, pulse length: 5 ns) of brass and steel in Ar and He and deposited in different segments of the transport tube to an ICP have been measured by ICP-MS. The data are compared with the ratios obtained by a corresponding bulk analysis. For brass, the element compositions of the aerosol particles deposited in different parts of the tube deviated from the bulk and varied along the tube. For steel, moderate agreement of the element ratios in the aerosols and the bulk was found. It is also shown that elemental ratios measured on-line by laser ablation ICP-MS with the laser-produced aerosol should not be calibrated by elemental ratios obtained with wet aerosols from aqueous solutions of the bulk. |
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