• Journal of Korean Society for Atmospheric Environment
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• v.20 no.3
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• pp.397-409
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• 2004

There has been few studies of either domestic or international to apply CCT-ICP-MS for the precise analysis of As and Cr components associated with airborne particulate matter. To date, the use of CCT-ICP-MS is strongly recommended for the accurate analysis of the toxic trace metals; this is because CCT-ICP-MS technique prevents polyatomic spectral interferences involved in the determination of As and/or Cr components. Taking advantage of CCT-ICP-MS technique, the measurements of about 20 metals were undertaken in this study. The standard reference material (NIST SRM 2783) was used for analytical quality control. To improve analytical accuracy and of acid efficiency, we selected nitric acid based on a test of three kinds of acid for microwave digestion method 1 ) nitric acid. 2) nitric acid and hydrogen peroxide. and 3) nitric acid and perchloric acid. When this method was employed, relative errors to SRM values of Al, As, Cr Fe, Mg, Mn, Pb, Sb, V, and Zn fell below 20%, while those or Ca, Si, and Ti were higher than 20%. The overall results of our study show that the concentrations of As and V determined by CCT-ICP-MS were satisfied with the certificated values within a relative error of 20e1c, whereas those determined by ICP-MS were 10 times higher than the certificated values.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2004.05a
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• pp.139-140
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• 2004

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2005.11a
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• pp.273-274
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• 2005

• Environmental Engineering Research
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• v.18 no.1
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• pp.3-8
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• 2013

Collision cell technology-inductively coupled plasma-mass spectrometry (CCT-ICP-MS) was used to measure the concentrations of approximately 19 elements associated with airborne PM2.5 samples that were collected from a roadside sampling station in Daejeon, Korea. Standard reference material (SRM 2783, air particulate on filter media) of the National Institute of Standards and Technology was used for the quality assurance of CCT-ICP-MS. The elemental concentrations were compared statistically with the certified (or recommended) values. The patterns of distribution were clearly distinguished between elements with their concentrations ranging over four orders of magnitude. If compared in terms of enrichment factors, it was found that toxic trace elements (e.g., Sb, Se, Cd, As, Zn, Pb, and Cu) of anthropogenic origin are much more enriched in PM2.5 samples of the study site. To the contrary, the results of the correlation analysis showed that PM2.5 concentrations can exhibit more enhanced correlations with the elements (e.g., Fe, K, Si, and Ti) arising from earth's crust. The findings of strong correlations between PM2.5 and the elements of crustal origin may be directly comparable with the dominant role of those species by constituting a major fraction of even PM2.5 as well as PM10 at the roadside area.