| SIMULATED THERMAL ALTERATION OF STEROLS AND KETO-ALCOHOLS IN MARINE SEDIMENTS OF THE OKINAWA TROUGH |
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| 作者姓名： | 姜善春 John K.Volkman Teresa O'Leary 张惠之 栾作峰 |
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| 作者单位： | Guangzhou Branch of Institute of Geochemistry，Academia Sinica，Guangzhou 510640，CSIRO Division of Oceanography，Hobart，Tasmania，Australia 7001，CSIRO Division of Oceanography，Hobart，Tasmania，Australia 7001，Guangzhou Branch of Institute of Geochemistry，Academia Sinica，Guangzhou 510640，Institute of Oceanology，Academia Sinica，Qingdao 266071 |
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| 基金项目： | Supported by the National Natural Foundation of China |
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| 摘 要： | Compositional data on the sterol and alcohol fractions isolated from deep-sea marine sediments from the Okinawa Trough were obtained to determine the relative contribution from. marine and terrestrial inputs. Following extraction, the sterol plus alcohol fraction was isolated by layer chromatography, derivatized with BSTFA and then analysed by capillary GC and GC-MS. A suite of C26-C29 stenols and stanols and C30-C32 keto - alcohols were identified in the sediments. The thermal stability of the compounds in these sediments was studied by heating portions of the surface sediment in glass tubes fpr 16 hours at temperatures from 50℃ to 200℃.The C27 stanol/stenol ratio increased when temperatures went up to 175℃ , but the distribution of C30-C32 Keto - alcohols remained unaffected. At 200℃ most of the sterols and Keto - alcohols were destroyed.
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SIMULATED THERMAL ALTERATION OF STEROLS AND KETO-ALCOHOLS IN MARINE SEDIMENTS OF THE OKINAWA TROUGH |
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| JIANG Shanchun I,John K. Volkman,Teresa O "Leary,ZHANG Huizhi and LUAN Zuofeng.SIMULATED THERMAL ALTERATION OF STEROLS AND KETO-ALCOHOLS IN MARINE SEDIMENTS OF THE OKINAWA TROUGH[J].Chinese Journal of Oceanology and Limnology,1993(4). |
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| Authors: | JIANG Shanchun I John K Volkman Teresa O "Leary ZHANG Huizhi and LUAN Zuofeng |
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| Abstract: | |
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| Keywords: | sterols ketq -alcohols thermal alteration Okinawa Trough |
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