Characteristics of organic matter in a marine sediment as revealed by alkaline CuO degradation/high resolution-gas chromatography-mass spectrometry

• Published in: Oceanography in Japan Vol. 1; no. 6; pp. 329 - 342
• Main Authors: Yamamoto, Shuichi, Tanimoto, Kazuhiko, Ishiwatari, Ryoshi, Uemura, Hitoshi, Kondo, Hiroshi
• Format: Journal Article
• Language: English; Japanese
• Published: The Oceanographic Society of Japan 1992
• ISSN: 0916-8362; 2186-3105
• DOI: 10.5928/kaiyou.1.329

Alkaline CuO degradation products of a marine sediment sample from off Sanriku (Pacific Ocean) were analyzed in detail by gas chromatography-mass spectrometry, with the following results: Approximately 150 compounds were identified in the degradation products. They include fatty acids (C8∼C&lt32&gt), alcohols (C&lt16&gt∼C&lt28&gt), α-hydroxy fatty acids (C7∼C&lt24&gt), β-hydroxy fatty acids (C8∼C22), ω-hydroxy fatty acids (C&lt14&gt∼C&lt24&gt), α, ω-dicarboxylic acids (C4∼C&lt22&gt), α-hydroxy α, ω-dicarboxylic acids (C4∼C&lt17&gt), lignin-derived phenolics (vanillyl phenols, syringyl phenols, p-coumaric acid and dimers of vanillyl phenols), and cutin-derived acids (9, 16- or 10, 16 -dihydroxy hexadecanoic acids, 8-hydroxy hexadecan-1, 16- dioic acid, 9, 10, 18-trihydroxy octadecanoic acid, 9, 10-dihydroxy octadecan-1, 18-dioic acid, 6- or 7-hydroxy pentadecan-1, 15-dioic acid), 11, 18- dihydroxy octadecanoic acid and 11, 18-dihydroxy octadecenoic acid (cis and trans). The applicability of these compounds as source indicators was discussed.