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  1. 120 山岳科学総合研究所
  2. 1202 紀要・刊行物
  3. 12022 信州大学山地水環境教育研究センター 研究報告
  4. Vol. 06

Molecularchanges in dissolved organic matter during photodegradation

http://hdl.handle.net/10091/10241
8dedb183-9a6a-4814-8b8f-3829f76ffd83
名前 / ファイル ライセンス アクション
Inlandwater06-008.pdf Inlandwater06-008.pdf (322.2 kB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2010-07-21
タイトル
タイトル Molecularchanges in dissolved organic matter during photodegradation
言語
言語 eng
キーワード
主題Scheme Other
主題 HumiC substance
キーワード
主題Scheme Other
主題 HPSEC
キーワード
主題Scheme Other
主題 Lake Biwa
キーワード
主題Scheme Other
主題 Biogeochemistry
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ departmental bulletin paper
著者 Tareq, Shafi M

× Tareq, Shafi M

WEKO 46643

Tareq, Shafi M

Search repository
Maruo, Masahiro

× Maruo, Masahiro

WEKO 46644

Maruo, Masahiro

Search repository
Nagahuchi, Osamu

× Nagahuchi, Osamu

WEKO 46645

Nagahuchi, Osamu

Search repository
Ohta, Keiichi

× Ohta, Keiichi

WEKO 46646

Ohta, Keiichi

Search repository
出版者
出版者 信州大学山地水環境教育研究センター
引用
内容記述タイプ Other
内容記述 信州大学山地水環境教育研究センター研究報告 6: 29-34(2010)
書誌情報 信州大学山地水環境教育研究センター研究報告

巻 6, p. 29-34, 発行日 2010-02-10
抄録
内容記述タイプ Abstract
内容記述 The high-performance-size exclusion chromatograph (HPSEC) separated dissolved organic matter (DOM) of lake Biwa andriver water into three major peaks of apparent molecular weight of 1200 (peakl) 800 (peak2) and 300 Da (peak3). Mimic pbotodegradation experiments on DOM in Lake Biwa showed that solar irradiation caused a decreaseinthe both UV and fluorescence intenslty. The decreaslng trends of the ratio between peak area of peak2 and peak3 With photodegradtion process indicated that large photo sensitive molecules are fragmented into small molecules dming photodegradation, The flrStl0rder reaction kinetics was applied toanalyze the photodegradation of DOM. Two-step photodegradation was suggested forthefluorescent DOM with different rate constant values, Results obtained in the present study suggested that fluorescent DOM is susceptible to photodegradation and fragmented to relatively smaller size molecllles with the progress of photodegradation,
資源タイプ(コンテンツの種類)
内容記述タイプ Other
内容記述 Article
ISSN
収録物識別子タイプ ISSN
収録物識別子 1348-7612
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA11887942
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