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Changes in elemental composition, molecular weight and 1H NMR spectra of the water-extractable hydrophobic acid fraction in Cambisol with season and soil depth
Authors:Daichi ASAKAWA  Hidemasa MOCHIZUKI  Yukiko YANAGI  Takeshi SUZUKI  Seiya NAGAO  Nobuhide FUJITAKE
Institution:The Graduate School of Science and Technology and;Laboratory of Soil Science, Faculty of Agriculture, Kobe University, Kobe 657-8501 and;Graduate School of Environmental Earth Science, Hokkaido University, Sapporo 060-0810, Japan
Abstract:
Keywords:dissolved organic matter  high-performance size exclusion chromatography                1H NMR spectroscopy  humic substances  hydrophobic acid fraction
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