About AOYAMA Masakazu
About Hirosaki Univ., Hirosaki, JPN
About Soil Science and Plant Nutrition
About polyvinylpyrrolidone
About Chromatography
About fraction (discrete unit)
About soil organic matter
About extraction
About humin
About Molecular Weight
About buffer solution
About fluorometry (analysis)
About humic acid
About absorption spectrum
About size exclusion chromatography
About UV吸収スペクトル
About 中性リン酸緩衝液
About Soil chemistry
About サイズ排除クロマトグラフィー
About ポリビニルピロリドン
About 分画
About 土壌
About 中性
About リン酸緩衝液
About 有機物
About 性質