Korea, elements

Cerium was included in a list of 14 elements determined by Lee et al. [627] in seawater using neutron activation analysis. The metals were first precon-centraed on a mixture of Chelex 100 and glass powder. The elements were desorbed from the column by 4 M nitric acid, and aqueous solution was irradiated for 3 days and subjected to y-ray spectrometry method with a Ge(Ii) detector coupled to a 4000-channel analyser. Cerium was found to be present to the extent of 16.7 xg/l in water taken from the Kwangyang Bay (South Korea). 

In order to evaluate the precision of this method, replicate analyses were carried out by Lee et al. [627] using the proposed procedure, for trace elements in a seawater sample taken from the Kwangyang Bay (Korea). The results showed satisfactory precision ranging from 0.2 xg/l for cadmium to 250 xg/l for iron. 

Ahn, J.S., H.T. Chon, and K.W. Kim. 1999. Arsenic and heavy metal contamination and uptake by rice crops around an abandoned Au-Ag mine in Korea. Pages 932-933 in W.W. Wenzel, D.C. Adriano, B. Alloway, H.E. Doner, C. Keller, N.W. Lepp, M. Mench, R. Naidu, and G.M. Pierzynski (eds.). Proceedings of the Fifth International Conference on the Biogeochemistry of Trace Elements, July 11-15, 1999, Vienna, Austria. 

Lee, J.-S., Chon, H.-T., Kim, J.-S. et al. (1998) Enrichment of potentially toxic elements in areas underlain by black shales and slates in Korea. Environmental Geochemistry and Health, 20(3), 135-47. 

Myung Chae Jung, Seong-Taek Yun, Jin-Soo Lee, Jong-Un Lee, Baseline study on essential and trace elements in polished rice from South Korea, Environ. Geochem. Health, 27 (2005), 455-464. 

Poster 32. B.S. Kim, D.Y. Lee, M.W. Oh, S.D. Park, H.W. Lee, W.S. Chung and T. Ishii (Korea Electrotechnology Research Institute, Pusan National University, Kagawa University) Comparison of Electronic State Calculation and Experimental Results of Electrical Conductivity of Mn-X(transition elements) Oxide by Anodic Deposition... 

Imported Inorganic Chemical Elements, Oxides and Halogen Salts in North Korea,... 

Kim K. W., Kim Y. J., Oh S. J. and Kim M. O., 1999b. Contribution of light absorption by elemental carbon to visibility degradation in an urban atmosphere, Kwangju, Korea. In Proceedings of the 2nd K-JIST International Symposium on Advanced Environmental Monitoring, November 4-5, 1998, Kwangju, Korea, 85-86. 

Saiki, M., Chaparro, C.G., Vasconcehos, M.B.A., Marcehi, M.P., 1995. Determination of trace elements in lichens by instrumental neutron activation analysis. In 7th International Conference on Modern Trends in Activation Analysis, Seoul, Korea, September 24-30, 1995. 

Black shales often contain high levels of trace elements, including Mo (Plant and Raiswell, 1983). Kim and Thornton (1993) reported high concentrations of Mo in soils developed on uraniferous black shales in Korea. They found that plant uptake of Mo from those soils was dependent on soil pH, with more uptake at higher pH. 

Consecutive cruise data along three transects (added to four transects since 2003) in the southern Yellow Sea (SYS, Fig. 3.16), maintained by the YS Environmental Cooperative Research between China and Korea, were used. The research concerned marine physics, chemistry, geology, biology, and environment. The cruise data included the ocean temperature (T), salinity (5), plankton biomass (chlorophyll a concentration and zooplankton biomass, etc.) and biogenic elements. 

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