| 太湖沉积物中酮的提取、分离及GC-MS测定 |
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| 引用本文： | 瞿文川,苏晨伟,张平中.太湖沉积物中酮的提取、分离及GC-MS测定[J].分析测试技术与仪器,1999,5(1):33-36. |
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| 作者姓名： | 瞿文川 苏晨伟 张平中 |
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| 作者单位： | [1]中国科学院南京地理与湖泊研究所 [2]南京大学制药厂 |
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| 基金项目： | 中国科学院重大项目,中国科学院 |
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| 摘 要： | 用索氏抽提法提取了太湖沉积物中的可溶性有机质，用不同极性溶剂在硅胶／氧化铝柱上分离了饱和烃，芳烃，酮馏分。利用ＧＣ－ＭＳ对酮组份进行了分析。沉积物中检出了一系列呈等间距分布的正构烷基－２－酮：Ｃ１４至Ｃ３３，主峰为Ｃ２９，具有强烈的奇碳数优势。
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| 关 键 词： | 太湖 沉积物 测定 酮 色谱－质谱 湖泊 |
| 收稿时间： | 7/7/1998 12:00:00 AM |
| 修稿时间： | 1998/10/14 0:00:00 |
The Extraction, Isolation and Determination of Ketone in the Sediment of Taihu Lake |
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| QU Wenchuan,SU Chenwei and ZHANG Pingzhong.The Extraction, Isolation and Determination of Ketone in the Sediment of Taihu Lake[J].Analysis and Testing Technology and Instruments,1999,5(1):33-36. |
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| Authors: | QU Wenchuan SU Chenwei and ZHANG Pingzhong |
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| Institution: | Nanjing Institute of Geography and Limnology, the Chinese Academy of Sciences Nanjing 210008;Pharmaceutical Factory of Nanjing University Nanjing 210093;Lanzhou Institute of Geology, the Chinese Academy of Sciences Lanzhou 730000 |
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| Abstract: | The extractable lipids were isolated using
soxhlet extraction method in the surficial sediment of Taihu lake. The ketones were fractionated
on an activated SiO\-2/Al\-2O\-3 column with hexane/ethylacetate (9:1,V/V) solvent. The ketone
fraction was analyzed by GC-MS instrument. A series of alkan-2-ones were detected in the
sediment samples of Taihu lake. The distribution range of carbon number was C\-14C\-33, major
peak was C\-29 with high OEP(odd to even predominance index). 6,10,14-trimethyl
pentadecan-2-one between the peaks of C\-16 and C\-17 with high abundance was also found. All
the ketone compounds were identified by the analysis of their mass-spectrogram, retention time
and the standard mass-spectrogram. |
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| Keywords: | Taihu lake sediment ketone GC-MS |
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