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堆積岩中の酢酸形$$^{14}$$Cの分配挙動; 硝酸塩添加時の微生物影響

Partition behavior of acetic $$^{14}$$C in sedimentary rock; Effect of microbial activities in the presence of nitrate

知場 一訓*; 佐藤 正知*; 小崎 完*; 宮内 善浩*; 香西 直文   ; 大貫 敏彦

Chiba, Takanori*; Sato, Seichi*; Kozaki, Tamotsu*; Miyauchi, Yoshihiro*; Kozai, Naofumi; Onuki, Toshihiko

二重容器によるバッチ式収着実験を行い、硝酸塩を添加した嫌気性雰囲気下での酢酸形$$^{14}$$Cの堆積岩への分配挙動を調べた結果、微生物の硝酸塩呼吸に起因すると思われる、液相の硝酸及び酢酸の濃度変化が明らかになった。

Redistribution behavior of $$^{14}$$C in acetate between rock and water have been examined in anaerated condition. In the presence of nitrate salt $$^{14}$$C prefer to transport in air.

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