| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Outline of Final Research Achievements |
Recently “Isoyake” has been widely observed in the coastal region in Japan. One of the causes is considered to be the decrease in the dissolved iron(II) or iron(III) concentrations in the coastal seawater. The reliable data which make it possible to clarify the causes of Isoyake, however, have not been well reported because to determine the concentrations of trace amounts of iron in different oxidation state present in coastal seawater is quite difficult.
In this study we have developed the high sensitive and selective speciation method using solid phase spectrometry for trace iron. By the practical application of this method on various coastal sea water samples, it is clarified that the concentration of iron(II) are not strongly correlated to Isoyake.
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