Determination of Total and Water Soluble Iodine in Soil by High Performance Liquid Chromatography
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概要
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A high-performance liquid chromatography (HPLC) method for the determination of the amount of iodine was developed and applied to soils. After alkali fusion of a soil sample, the iodine in the form of iodide isolated from coexisting ions was separated on a C_<18>-bonded phase column with acetonitrile-water containing tetrabutylammonium ion as a mobile phase, and the amount of iodine was determined spectrophotometrically at 230 nm. By this method, it was possible to determine the total amount of iodine reaching more than about 1 mg kg^<-1> in soils. In addition, a method for quantitative speciation of water soluble iodine in soil was also studied by using the HPLC method proposed. Iodine in the water extract of soils was divided into iodide (I^-), iodate (IO_3^-), and organically-bound iodine, and the predominant chemical form of iodine in the extract was iodide ion.
- 社団法人日本土壌肥料学会の論文
著者
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Yonebayashi Koyo
Agriculture Kyoto Prefectural University
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Yonebayashi Koyo
Agricultural Chemistry Faculty Of Agriculture Kyoto Prefectural University
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Yamada Hidekazu
Agricultural Chemistry, Faculty of Agriculture, Kyoto Prefectural University
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Sugahara Masataka
Agricultural Chemistry, Faculty of Agriculture, Kyoto Prefectural University
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Kosaka Hideko
Agricultural Chemistry, Faculty of Agriculture, Kyoto Prefectural University
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Katayama Atsuko
Agricultural Chemistry, Faculty of Agriculture, Kyoto Prefectural University
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Takahashi Katsuyuki
Kyoto Prefectural Agricultural Research Institute
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Kosaka Hideko
Agricultural Chemistry Faculty Of Agriculture Kyoto Prefectural University:(present Address)kyoto Da
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Katayama Atsuko
Agricultural Chemistry Faculty Of Agriculture Kyoto Prefectural University:(present Address)kyoto Da
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Yamada Hidekazu
Agricultural Chemistry Faculty Of Agriculture Kyoto Prefectural University
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Sugahara Masataka
Agricultural Chemistry Faculty Of Agriculture Kyoto Prefectural University:(present Address)ogawa &a
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