|Budget Amount *help
¥48,490,000 (Direct Cost: ¥37,300,000、Indirect Cost: ¥11,190,000)
Fiscal Year 2014: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
Fiscal Year 2013: ¥8,320,000 (Direct Cost: ¥6,400,000、Indirect Cost: ¥1,920,000)
Fiscal Year 2012: ¥31,720,000 (Direct Cost: ¥24,400,000、Indirect Cost: ¥7,320,000)
|Outline of Final Research Achievements
Ocean-sectional distribution of bioactive trace metals (Al, Mn, Fe, Co, Ni, Cu, Zn, Cd, and Pb) has been studied in the Indian Ocean, Arctic Ocean, and other regions. A novel automated preconcentration system has been developed for one-step preconcentration of bioactive trace metals. A precise analytical method for copper stable isotope ratio in seawater has been developed to reveal distribution and cycling of copper stable isotopes in the Pacific, Indian, and Atlantic Ocean. In addition, we studied high-field strength elements (Zr, Hf, Nb, Ta, Mo, W), noble metals (Pd, Pt, Au), Se, Bi, and speciation. We also joined the R/V Hakuho-maru cruises of KH-12-4 in the subarctic North Pacific and of KH-14-6 from the North Pacific through the Antarctic to carry out clean sampling of seawater from surface to bottom.